Platform Ladder Equipment Requirements
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Questions and Answers

What is the minimum length of the pike pole required in the fly section of the platform ladder?

  • 12 ft.
  • 8 ft. (correct)
  • 6 ft.
  • 10 ft.

Which tool must be present in the bucket of the platform ladder?

  • A shovel
  • A chainsaw
  • A fire extinguisher
  • An axe (correct)

Which tool must be checked for presence at the tip of the aerial ladder?

  • Axe (correct)
  • Rescue harness
  • Fire extinguisher
  • Utility knife

What is a critical setting that must be ensured before using the waterway of the aerial ladder?

<p>Waterway is in rescue mode (C)</p> Signup and view all the answers

How many feet is the minimum length of the pike pole required for the aerial ladder?

<p>8 feet (C)</p> Signup and view all the answers

Which combination of tools is required at the tip of the aerial ladder?

<p>Pike pole and axe (D)</p> Signup and view all the answers

What indicates the chainsaw is experiencing a malfunction related to electronics or the motor?

<p>3 flashing red LEDs (D)</p> Signup and view all the answers

What is the gauge of the drive link represented by the stamp on the drive link/tang?

<p>.050&quot; (A)</p> Signup and view all the answers

What is the total number of cutting teeth on the carbide toothed STIHL MSA 220 C CHAINSAW

<p>22 (A)</p> Signup and view all the answers

What is the pitch of the chain based on the indication stamped on the raker?

<p>3/8&quot; (D)</p> Signup and view all the answers

What happens if 3 or more cutting teeth are missing from the chain?

<p>The chain should be replaced. (D)</p> Signup and view all the answers

What is the maximum percentage of ethanol that can be used in the fuel mix for the STIHL MS 046, 460, and 461R chainsaws?

<p>10% (D)</p> Signup and view all the answers

What is the weight of the powerhead of the STIHL MS 046, 460, and 461R chainsaws?

<p>15 lbs. (C)</p> Signup and view all the answers

Which chain specification indicates a chain that is designed for low kickback?

<p>Green drive link (A)</p> Signup and view all the answers

What is the fuel mix ratio for the STIHL MS 046, 460, and 461R chainsaws?

<p>50:1 (A)</p> Signup and view all the answers

What is the maximum cutting depth for a 14-inch blade used with the STIHL TS400 and 700 series circular saws?

<p>4.9 inches (B)</p> Signup and view all the answers

Which fuel specifications should be adhered to for optimal performance of the STIHL TS400 and 700 series circular saws?

<p>Minimum 89 octane, no more than 10% Ethanol (B)</p> Signup and view all the answers

What is the correct fuel mix ratio for the STIHL TS400 and 700 series circular saws?

<p>50:1 (D)</p> Signup and view all the answers

Which inspection item is NOT necessary for composite blades used in STIHL TS400 and 700 series circular saws?

<p>Inspect for blunting of cutting edges (A)</p> Signup and view all the answers

What is the maximum spindle speed of the STIHL TS400 and 700 series circular saws?

<p>5,350 RPM (B)</p> Signup and view all the answers

What is the engine displacement of the MS 500i chainsaw?

<p>4.83 cu. in. (A)</p> Signup and view all the answers

Which tool has a higher maximum engine speed?

<p>MS 500i Chainsaw (B)</p> Signup and view all the answers

What is the idle speed of the TS 500i Circular Saw?

<p>2,500 RPM (B)</p> Signup and view all the answers

What is the maximum cutting depth achievable with the TS 500i Circular Saw?

<p>4.9 inches (B)</p> Signup and view all the answers

What is the fuel mix ratio for both the MS 500i Chainsaw and the TS 500i Circular Saw?

<p>50:1 (D)</p> Signup and view all the answers

What is the minimum weight rating specified for extension and roof ladders?

<p>750 lbs (D)</p> Signup and view all the answers

What is the required minimum width between ladder beams for extension and roof ladders?

<p>16 inches (B)</p> Signup and view all the answers

How far apart should the rungs of extension and roof ladders be spaced?

<p>14 inches (B)</p> Signup and view all the answers

What load must all rungs of extension and roof ladders be tested to withstand?

<p>1,000 lbs (B)</p> Signup and view all the answers

What safety factor is applied to the weight rating of extension ladders and roof ladders?

<p>4:1 (A)</p> Signup and view all the answers

What should be done if a ladder requires more than 75 lbs of force to raise?

<p>Immediately clean and wax the ladder (D)</p> Signup and view all the answers

How often should ladders be waxed at a minimum?

<p>Every six months (D)</p> Signup and view all the answers

What is the primary function of applying bar wax to a ladder?

<p>To reduce the force required to raise the ladder (C)</p> Signup and view all the answers

What is a consequence of not maintaining the wax on a ladder?

<p>It could increase the force needed to raise the ladder (A)</p> Signup and view all the answers

Which of the following correctly describes the frequency of ladder maintenance based on usage rates?

<p>Maintenance should be adjusted based on the frequency of ladder use (D)</p> Signup and view all the answers

What happens to the load capacity of an aluminum ladder if it reaches a temperature of 300° F?

<p>It decreases by at least 25%. (D)</p> Signup and view all the answers

What should be done if a heat sensor on an aluminum ladder turns black?

<p>Take the ladder out of service and contact Tools and Equipment. (C)</p> Signup and view all the answers

Which material is used to construct the aluminum ladders mentioned?

<p>6061-T6 alloy (C)</p> Signup and view all the answers

At what temperature do the visual warning labels on the aluminum ladders indicate heat presence?

<p>300° F (D)</p> Signup and view all the answers

How many visual warning labels are located on each section of aluminum ladders?

<p>Four labels per section. (D)</p> Signup and view all the answers

What is the maximum AC output of the Honda EU2000i generator?

<p>2000 watts (D)</p> Signup and view all the answers

What is the displacement of the Honda EU1000i generator's engine?

<p>3.01 cu in. (A)</p> Signup and view all the answers

How much oil is required for the Honda EU2000i generator?

<p>13 oz (A)</p> Signup and view all the answers

What is the run time per tankful for the Honda EU1000i under full load?

<p>3 hours (B)</p> Signup and view all the answers

Which of the following specifications differentiates the EU2000i from the EU1000i in terms of weight?

<p>45 lbs (C)</p> Signup and view all the answers

What is the maximum continuous operation rating of the EB5000X generator?

<p>4,500 VA (B)</p> Signup and view all the answers

How long can the EB5000X generator run at full load on a single tank of fuel?

<p>7.1 hours (C)</p> Signup and view all the answers

What is the weight difference between the EB5000X and the EM6500SX generators?

<p>15 lbs (A)</p> Signup and view all the answers

What is the maximum output rating for both the EB5000X and the EM6500SX generators?

<p>7,000 watts (B)</p> Signup and view all the answers

What is the air output of the Electric Ramfan EV400 when set to the 20-amp setting?

<p>11,381 cfm (D)</p> Signup and view all the answers

Which Ramfan model has the highest horsepower rating?

<p>Gas Ramfan GX200 (B)</p> Signup and view all the answers

What is the noise level produced by the Gas Ramfan GX200 in decibels?

<p>91 decibels (A)</p> Signup and view all the answers

What is the maximum air output of the Battery Ramfan EX50Li when using AC power?

<p>9,635 cfm (B)</p> Signup and view all the answers

How long can the Gas Ramfan GX200 run continuously on a full tank?

<p>1 hour and 40 minutes (B)</p> Signup and view all the answers

Which smoke ejector has the highest air output in cubic feet per minute (cfm)?

<p>SUPERVAC HF164E (C)</p> Signup and view all the answers

Which factor differentiates the RAMFAN EFC150X from the SUPERVAC HF164E regarding cold crank wattage?

<p>SUPERVAC HF164E has a higher cold crank wattage than RAMFAN EFC150X (B)</p> Signup and view all the answers

What is the speed at which the SUPERVAC P164SE operates?

<p>1,725 rpm (B)</p> Signup and view all the answers

Which fan weighs the most among the listed smoke ejectors?

<p>SUPERVAC HF164E (A)</p> Signup and view all the answers

Which characteristic is common to all three smoke ejectors concerning their power supply?

<p>All require 50/60 hertz (A)</p> Signup and view all the answers

What is the primary function of the locking carabiner in the yellow mainline rope system?

<p>To attach the rope to the internal webbing loop (A)</p> Signup and view all the answers

Which of the following correctly describes the breaking strength of both the yellow mainline rope and the red taglines?

<p>Both have a breaking strength of 3,484 pounds (C)</p> Signup and view all the answers

What feature is unique to the deployment of the yellow rope from its bag?

<p>It deploys out of only one end of the bag (A)</p> Signup and view all the answers

Identify the role of the non-locking carabiners in both the yellow mainline and the red taglines.

<p>They provide a means of functionality for deployment and attachment (A)</p> Signup and view all the answers

Which aspect of the taglines ensures they are easy to account for during operations?

<p>Each bag has an ID Tag for easy accountability (B)</p> Signup and view all the answers

What is the correct spreading distance for the Hydra-Ram II?

<p>6 inches (C)</p> Signup and view all the answers

Which of the following components is unique to the Hydra-Ram II compared to the Rabbit Tool?

<p>Hydraulic piston (D)</p> Signup and view all the answers

What happens to the piston movement when the pressure exceeds 400 lbs on the Hydra-Ram II?

<p>Piston moves 1/4 inch per pump (B)</p> Signup and view all the answers

Which action is required to lubricate the Hydra-Ram II effectively?

<p>Wipe clean and apply oil with piston fully extended (B)</p> Signup and view all the answers

What is the total weight of the Hydra-Ram II when included with its carrying bag?

<p>14 lbs (C)</p> Signup and view all the answers

What is the primary purpose of K-100 fuel additive?

<p>To treat and stabilize fuel for engine maintenance (A)</p> Signup and view all the answers

In what types of fuel should K-100 be added?

<p>Two-cycle mixed gas and straight gas (C)</p> Signup and view all the answers

Which of the following is a benefit of using K-100 fuel additive in small engines?

<p>It helps prevent water in fuel (A)</p> Signup and view all the answers

How many platform ladders in the Columbus Fire fleet are designated as front-line apparatus?

<p>7 (A)</p> Signup and view all the answers

What material are the aerials on the platform ladders made from?

<p>Aluminum #6061-T6 (A)</p> Signup and view all the answers

How many platform ladders does Columbus Fire have in total as of 2021?

<p>12 (C)</p> Signup and view all the answers

What type of construction do all platform ladders in the Columbus Fire fleet have?

<p>Mid-mount platforms (A)</p> Signup and view all the answers

Which company manufactures the mid-mount platforms used in the Columbus Fire fleet?

<p>Sutphen (B)</p> Signup and view all the answers

What is a key characteristic of Huck Bolts when installed properly?

<p>They never come loose once installed. (D)</p> Signup and view all the answers

Which statement best describes the function of Huck Bolts?

<p>They do not require maintenance after installation. (B)</p> Signup and view all the answers

In which environment are Huck Bolts most effective?

<p>High vibration and stress environments. (B)</p> Signup and view all the answers

What is the main advantage of using Huck Bolts over traditional fasteners?

<p>They prevent loosening under vibration. (A)</p> Signup and view all the answers

What happens to Huck Bolts once they are installed?

<p>They remain secure without the need for regular maintenance. (C)</p> Signup and view all the answers

What is the tip load capacity of the aerial ladder when the waterway is charged?

<p>500 LB (B)</p> Signup and view all the answers

How does the jack spread of the truck compare to SPH models?

<p>It has a shorter spread than SPH models. (C)</p> Signup and view all the answers

What is the total distance of jack spread from jack-to-jack?

<p>18’ (C)</p> Signup and view all the answers

Which feature of the truck requires coordination between two firefighters during operation?

<p>Short-jacking process (A)</p> Signup and view all the answers

What is the total length of one extended outrigger on the truck?

<p>5’ 3” (B)</p> Signup and view all the answers

What change was implemented for the outrigger controls in the first models of the SPH platforms introduced in 2005?

<p>They switched to push button controls. (C)</p> Signup and view all the answers

How did the wheelbase change impact the SPH platforms introduced in 2005?

<p>It resulted in a significantly reduced turning radius. (A)</p> Signup and view all the answers

In the newer SPH models, what change was made to the ladder construction?

<p>The ladder transitioned to a 5-section design. (C)</p> Signup and view all the answers

What effect does the use of a 5-section ladder have on the aerial while in use?

<p>It increases the sway when the aerial is in use. (B)</p> Signup and view all the answers

What is the maximum discharge capability of the CFD platforms?

<p>2,000 GPM (D)</p> Signup and view all the answers

What occurs if a CFD platform's pump is engaged without a water supply?

<p>The pump could sustain damage and fail. (D)</p> Signup and view all the answers

Which of the following statements is true regarding CFD platforms?

<p>They do not have any pre-connects. (D)</p> Signup and view all the answers

What is the rated pump capacity of all CFD platforms?

<p>1,500 GPM (D)</p> Signup and view all the answers

What is essential for the CFD platform's pump to function properly?

<p>A water supply must be established before pump operation. (B)</p> Signup and view all the answers

What is the maximum combined weight that can be safely supported in the bucket when using stokes arms?

<p>500-LB (C)</p> Signup and view all the answers

What wind speed rating do all CFD platforms have?

<p>35-MPH (A)</p> Signup and view all the answers

What is the maximum weight rating of the stokes basket arms when used together?

<p>400-LB per pair (B)</p> Signup and view all the answers

How much weight can the stokes arms support in total when used with the bucket?

<p>500-LB (C)</p> Signup and view all the answers

When the stokes arms are used, what is the maximum weight that can be lifted in the bucket compared to the maximum weight capacity of the arms?

<p>The combined weight must not exceed 500-LB total (D)</p> Signup and view all the answers

What is the total number of tillers in the fleet mentioned?

<p>14 (C)</p> Signup and view all the answers

How many of the tillers are designated as front line vehicles?

<p>9 (A)</p> Signup and view all the answers

What is the minimum tip load capacity of the aerial ladders used on the tillers?

<p>750 lbs (C)</p> Signup and view all the answers

What is the primary manufacturer of the cab for the TDAs purchased by the City of Columbus?

<p>American Lafrance (C)</p> Signup and view all the answers

What is the aerial reach of the TDAs that were purchased by the City of Columbus?

<p>110 feet (D)</p> Signup and view all the answers

Which feature is used to easily identify the TDAs from a distance?

<p>White aerials (C)</p> Signup and view all the answers

Which company produced the aerial component for the TDAs used by the City of Columbus?

<p>Ladder Tower Incorporated (A)</p> Signup and view all the answers

What type of setup do the TDAs purchased by the City of Columbus have?

<p>Four-outrigger setup (B)</p> Signup and view all the answers

What should be checked if hydraulic power is lost while operating the aerial ladder?

<p>5th wheel lockout light in the outrigger control box (B)</p> Signup and view all the answers

What is a notable difference between Pierce tillers from various purchase years?

<p>Length of aerials available (D)</p> Signup and view all the answers

Which component is specifically checked in the outrigger control box during ladder operation?

<p>5th wheel lockout light (B)</p> Signup and view all the answers

In the context of aerial ladder operations, what should be prioritized if a malfunction occurs?

<p>Ensuring the 5th wheel lockout light is functioning (C)</p> Signup and view all the answers

What is the consequence of not confirming the nozzle's position before bedding the ladder?

<p>It can lead to the nozzle obstructing the aerial positioning during rescue. (B)</p> Signup and view all the answers

Which of the following is crucial to check regarding the aerial ladder before initiating operations?

<p>The nozzle must be stowed properly. (B)</p> Signup and view all the answers

During morning checks, what mode should the waterway be pinned to?

<p>Rescue mode to facilitate operations. (D)</p> Signup and view all the answers

What is the recommended action when using controls for the aerial ladder?

<p>Feather the controls for smoother operation. (D)</p> Signup and view all the answers

What is the maximum duration for which the EPU on the ALF ladders can be used continuously?

<p>2 minutes (B)</p> Signup and view all the answers

How long must the EPU be turned off after 2 minutes of continuous use?

<p>7 minutes (B)</p> Signup and view all the answers

Which action is NOT a way to override the truck’s interlocks during short-jacked operations?

<p>Using a secondary override lever (A)</p> Signup and view all the answers

At what frequency should EPU/Auxiliary motors be checked?

<p>Every 10 hours of aerial use (C)</p> Signup and view all the answers

What is the purpose of allowing the EPU to rest after 2 minutes of use?

<p>To prevent overheating (C)</p> Signup and view all the answers

What is the maximum continuous usage time for the EPU motor on CFD Pierce ladders?

<p>30 minutes (C)</p> Signup and view all the answers

How long of a cooldown period is required after using the EPU on Sutphen Platforms?

<p>5 minutes (D)</p> Signup and view all the answers

Which statement is true regarding the operational rate of EPU motors?

<p>Operations will be much slower when using the EPU. (D)</p> Signup and view all the answers

What is the total cooldown time required after a full cycle of EPU operation on CFD Pierce ladders?

<p>30 minutes (D)</p> Signup and view all the answers

Which of the following best describes the duty cycle for the EPU on Sutphen Platforms?

<p>2 minutes on, 5 minutes off (D)</p> Signup and view all the answers

What is the primary requirement for engaging a PTO driven generator?

<p>The engine RPMs must be under 1100 RPM. (C)</p> Signup and view all the answers

Which statement correctly describes the operation of a PTO generator while driving?

<p>The hydraulic generator activates only when RPMs drop below 1100 RPM. (C)</p> Signup and view all the answers

What must a driver ensure while approaching a scene when operating a PTO driven generator?

<p>Allow the RPMs to decrease, dropping below 1100 RPM. (C)</p> Signup and view all the answers

Which of the following is NOT a method of powering an on-board generator?

<p>Hydraulic battery system. (A)</p> Signup and view all the answers

What happens when a driver activates the PTO HYD GEN button while driving?

<p>No effect is observed until RPMs are reduced to 1100RPM (C)</p> Signup and view all the answers

Which ladder models are equipped with LED lights that can operate on a truck's 12v battery system?

<p>L-1, L-8, L-28, L-2, and L-26 (B)</p> Signup and view all the answers

At what temperature does a 500w halogen bulb generate heat?

<p>570°F (A)</p> Signup and view all the answers

Which of the following ladder models currently does NOT include LED lighting technology?

<p>L-7 (B)</p> Signup and view all the answers

What potential hazard is associated with a 500w halogen bulb during operation?

<p>Overheating to a high temperature (A)</p> Signup and view all the answers

Which statement is true regarding the operational capabilities of LED lights in the listed ladder companies?

<p>They can run off the truck's 12v battery system. (A)</p> Signup and view all the answers

What air pressure reading indicates the need to start the engine to build pressure?

<p>Below 70 PSI (D)</p> Signup and view all the answers

What is the normal operating range for oil pressure when the engine is running?

<p>40-60 PSI (A)</p> Signup and view all the answers

Which reading on the voltmeter indicates a low battery condition that may affect the load manager?

<p>At 12.8 Volts (D)</p> Signup and view all the answers

What should the transmission temperature ideally be when the motor is running?

<p>160°F - 200°F (A)</p> Signup and view all the answers

What is the ideal engine temperature range when the motor is operational?

<p>190°F - 212°F (A)</p> Signup and view all the answers

What is the appropriate angle for placing a ladder in the rescue position?

<p>70°-75° (B)</p> Signup and view all the answers

How much water flow is indicated as the capacity of master streams in CFD ladders?

<p>1,000 gpm (C)</p> Signup and view all the answers

What is the collapse zone around a building based on its height?

<p>1 1/2 times the height of the building (C)</p> Signup and view all the answers

Which of the following statements about master streams is accurate?

<p>They can flow over 1,000 gpm. (D)</p> Signup and view all the answers

What aspect is primarily concerned when establishing a rescue position for a ladder?

<p>The ladder must be placed at a climbing angle of 70°-75°. (D)</p> Signup and view all the answers

What should be the first priority when rescuing victims in an emergency situation?

<p>The most severely threatened victims (B)</p> Signup and view all the answers

In a rescue scenario, which of the following should be tended to after the severely threatened victims?

<p>The largest number of victims (B)</p> Signup and view all the answers

Which of the following rescue priorities comes last in the sequence?

<p>Victims in the remaining areas of danger (D)</p> Signup and view all the answers

Which option correctly represents the third priority in a rescue operation?

<p>The remainder of the fire area (A)</p> Signup and view all the answers

What is the effect of positioning extension ladders with the fly section out?

<p>It makes the ladder 4% stronger. (B)</p> Signup and view all the answers

Which of the following statements is true regarding the positioning of extension ladders?

<p>The fly section should be positioned out for optimal strength. (A)</p> Signup and view all the answers

In what way does Duo Safety's recommendation affect the fly section of their extension ladders?

<p>It enhances the structural integrity of the ladder. (C)</p> Signup and view all the answers

What is the recommended position for the bed section of Duo Safety extension ladders?

<p>Against the building for optimal safety. (B)</p> Signup and view all the answers

What does a 15:1 mechanical advantage with a 2” adz translate a 100 lbs exerted force into?

<p>1,500 lbs of gapping force (D)</p> Signup and view all the answers

Which of the following statements about the gapping process with the adz is correct?

<p>Mechanical advantage enables less force to achieve greater gapping force. (A)</p> Signup and view all the answers

In the context of gapping, what is the purpose of using an adz?

<p>To amplify the applied force for effective gapping. (B)</p> Signup and view all the answers

When utilizing a 30” Pro-Bar and a 2” adz, how much force is required at the forks to apply 1,500 lbs of gapping force?

<p>100 lbs (D)</p> Signup and view all the answers

What is the primary advantage of using the K-tool for through-the-lock operations?

<p>It is effective for accessing locked areas without forcing entry. (D)</p> Signup and view all the answers

Why might the K-tool be preferred over traditional lock-picking methods?

<p>It minimizes the risk of lock damage. (B)</p> Signup and view all the answers

Which of the following is a common type of security feature used on vacant structures?

<p>Vacant Property Security (VPS) Systems (C)</p> Signup and view all the answers

What may be an obstacle over entry points in vacant structures aimed at preventing access?

<p>Plywood (A)</p> Signup and view all the answers

What is the primary purpose of polycarbonate window coverings in a vacant structure?

<p>To prevent unauthorized entry (A)</p> Signup and view all the answers

Why do outside ladder teams face additional challenges with vacant structures?

<p>Often have security features obstructing entry points (B)</p> Signup and view all the answers

Which of the following features is NOT typically associated with vacant structures to deter intruders?

<p>Open access stairways (C)</p> Signup and view all the answers

Which factor is primarily concerned with the likelihood of a victim's survival during a primary search?

<p>Occupant accountability/survivability (A)</p> Signup and view all the answers

What aspect does the number, location, and condition of victims influence during a primary search?

<p>Known life hazard vs. potential life hazard (B)</p> Signup and view all the answers

Which of the following factors contributes to assessing the safety of search crews during a primary search?

<p>All the above (C)</p> Signup and view all the answers

How does the availability of equipment/staffing affect a primary search operation?

<p>It influences the number and effectiveness of searches (D)</p> Signup and view all the answers

Which factor has the least influence on the initial assessment of a primary search scenario?

<p>Established water source (B)</p> Signup and view all the answers

What percentage of rescues were conducted by the crews assigned to primary search?

<p>58% (D)</p> Signup and view all the answers

Which floor had the highest percentage of victims rescued during the operations?

<p>First Floor (B)</p> Signup and view all the answers

What portion of the victims found had no reports from bystanders or occupants regarding their presence?

<p>28% (B)</p> Signup and view all the answers

What percentage of the total rescues were attributed to bystanders or occupants reporting victims inside the building?

<p>69% (C)</p> Signup and view all the answers

What percentage of the first 2,000 rescues recorded utilized VEIS?

<p>21% (B)</p> Signup and view all the answers

What percentage of rescues utilized a dirty drag to remove victims?

<p>82% (C)</p> Signup and view all the answers

Which method was least used in the rescues mentioned?

<p>Aerial ladder (C)</p> Signup and view all the answers

In the rescue data, what was the percentage of victims removed using webbing drags?

<p>3% (C)</p> Signup and view all the answers

How frequently was the ground ladder utilized in the rescues?

<p>14% (A)</p> Signup and view all the answers

What percentage of the total rescues involved methods other than dirty drag or webbing?

<p>1% (B)</p> Signup and view all the answers

What should crews check for above or behind firefighters at a distance marker knot?

<p>Fire conditions by popping a ceiling tile (D)</p> Signup and view all the answers

Which action is essential for confirming each firefighter's safety status at a distance marker knot?

<p>Checking each firefighter’s air levels (A)</p> Signup and view all the answers

What is a mandatory procedure for crews at a distance marker knot along with checking air levels?

<p>Performing a Personnel Accountability Report (PAR) (A)</p> Signup and view all the answers

Which of the following is NOT a recommended practice when arriving at a distance marker knot?

<p>Ensuring all team members are in view (B)</p> Signup and view all the answers

At what distance should a fan be positioned for optimal airflow when placed near a doorway?

<p>4-6 feet away from the door (C)</p> Signup and view all the answers

What is the primary goal for firefighters when using a fan near a doorway?

<p>To cover the complete opening with moving air (C)</p> Signup and view all the answers

Which statement accurately describes the placement of a fan for effective air movement?

<p>The fan's cone pattern must fully encompass the opening, including corners. (C)</p> Signup and view all the answers

Why is it important to ventilate a residential flat roof at least six feet away from the edge?

<p>To ensure adequate airflow and reduce the risk of fire. (B)</p> Signup and view all the answers

What consequence may occur if ventilation is placed too close to the edge of a flat roof?

<p>Higher risk of smoke and heat accumulation. (C)</p> Signup and view all the answers

In the context of residential flat roof ventilation, what aspect is primarily improved by maintaining a distance of at least six feet from the edge?

<p>Safety and efficiency of ventilation. (C)</p> Signup and view all the answers

What underlying principle supports the recommendation to ventilate at least six feet away from the edge of a flat roof?

<p>To reduce potential fire hazards. (A)</p> Signup and view all the answers

What pressure range is classified as medium pressure?

<p>10-60 psi (A)</p> Signup and view all the answers

Which statement accurately describes the specific gravity of natural gas compared to air?

<p>Natural gas is lighter than air. (C)</p> Signup and view all the answers

What would indicate an elevated operating pressure of gas in an area?

<p>Audible sound of gas escaping. (A)</p> Signup and view all the answers

What is the maximum pressure that can be classified as high pressure?

<p>60 psi (C)</p> Signup and view all the answers

In relation to natural gas, what condition can occur during periods of high demand?

<p>Decrease to as low as 2 psi (A)</p> Signup and view all the answers

What is the concentration range of natural gas in air that allows for combustion?

<p>5% to 15% (C)</p> Signup and view all the answers

What happens to natural gas at concentrations below 5% or above 15%?

<p>It will not burn. (A)</p> Signup and view all the answers

Which option is NOT listed as a rescue option for elevator incidents?

<p>Elevator Electric System Diagnostic (D)</p> Signup and view all the answers

Which statement correctly identifies the characteristics of methane?

<p>It is the primary component of natural gas. (C)</p> Signup and view all the answers

Which of the following concentrations is classified as the lower explosive limit (LEL) for natural gas?

<p>5% (A)</p> Signup and view all the answers

What voltage is typically used to power the lights and ventilation fans inside the elevator car?

<p>120 volts (B)</p> Signup and view all the answers

How many total volts do the three hot legs equate to in the elevator car's design?

<p>480 volts (A)</p> Signup and view all the answers

Which voltage configuration is NOT used for the mechanics of the elevator car?

<p>120 volts (C), 240 volts (D)</p> Signup and view all the answers

What type of voltage system is represented by the notation '120V 3PH' in relation to the elevator mechanics?

<p>Three phase (B)</p> Signup and view all the answers

For what primary purpose is the 480 volts utilized in the elevator car system?

<p>To operate the elevator mechanics (C)</p> Signup and view all the answers

Flashcards

Pike pole

A long, sturdy tool used to hook and pull objects, often used for firefighting.

Axe

A tool with a sharp blade used for cutting and chopping wood, commonly used for firefighting.

Fly section

The upper part of the ladder where the rungs extend above the platform, typically used for accessing higher areas.

Platform

A stable, flat surface at the top of the ladder, used for standing and working.

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Bucket

A container for holding tools or equipment, often used for carrying firefighting tools.

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Waterway in Rescue Mode

The position of the aerial ladder when it's ready for rescue operations.

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Waterway Intakes Closed

Preventing water from entering the ladder's system, ensuring safe operation.

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Pike Pole and Axe at the Tip

The process of ensuring that the pike pole and axe are securely attached to the top of the aerial ladder.

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What is the STIHL MSA 220 C chainsaw?

An electric chainsaw designed to replace corded Stihl models. It features a 12" guide bar, chain, and a battery pack.

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What is the AP 300 S battery?

A rechargeable battery used to power the MSA 220 C. It features LEDs that indicate battery status and potential issues.

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What is the Pitch of the chain?

Refers to the distance between two adjacent drive links, divided by two. A larger pitch indicates a heavier chain.

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What is the Gauge of the chain?

The width of the drive link, which is .050" on the STIHL MSA 220 C. It's a key factor in chain selection.

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What is a Carbide Toothed Chain?

A type of chainsaw chain featuring carbide teeth. It's commonly used on the STIHL MSA 220 C.

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What is Chain Pitch?

Refers to the distance between two adjacent drive links, divided by two. A larger pitch corresponds to a heavier chain.

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What is Chain Gauge?

Indicates the width of the drive link, which is 0.050" on the STIHL MS 046, 460, and 461R. It plays a crucial role in chain selection.

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What kind of chain is used?

A type of chainsaw chain featuring carbide teeth, known for its durability and cutting performance. It's commonly used on Stihl's MS 046, 460, and 461R models.

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What are the basic parts of the saw?

The powerhead, guide bar, and chain are its main components.

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What is the fuel mix ratio?

The fuel mix ratio should be 50:1 meaning 2.6 fl oz of oil added to 1 gallon of gasoline. It's vital to ensure the correct mixture for optimal performance and engine longevity.

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What is a diamond blade?

A circular saw specifically designed for cutting concrete and metal, featuring a diamond-studded blade for robust durability and precise cuts.

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What is the fuel mix ratio for STIHL TS400 and 700 saws?

The STIHL TS400 and 700 series circular saws use a fuel mix ratio of 50:1, which translates to 2.6 fluid ounces of oil for every gallon of gasoline.

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What is a DAX blade?

A composite blade designed for cutting metal up to 3/16 inch thick, featuring carbide cutting teeth for exceptional strength and performance.

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Why is inspecting the blade important?

Inspecting the blade for signs of damage, decay, or wear is crucial for safety and optimal performance. Look for fraying, cracks, missing teeth, and other signs of deterioration.

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What are the main parts of a STIHL TS400/700 circular saw?

These saws, known for their power and durability, are built with three main components: the arm, the blade, and the powerhead.

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What is the displacement of the MS 500i chainsaw?

The MS 500i chainsaw has a displacement of 4.83 cubic inches, which refers to the volume of air the engine displaces with each stroke. This value indicates the engine's power and potential.

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What is the maximum cutting depth of the TS 500i circular saw?

The TS 500i circular saw features a 14-inch blade capable of cutting up to 4.9 inches deep.This implies the saw's capacity for cutting through thick materials.

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What is the fuel mix ratio for both the MS 500i chainsaw and the TS 500i circular saw?

Both the MS 500i chainsaw and the TS 500i circular saw require a 50:1 fuel mix ratio. This means for every 1 gallon of gasoline, you need to add 2.6 fluid ounces of oil.

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What are the idle and maximum engine speeds of the MS 500i chainsaw?

The MS 500i chainsaw has an idle speed of 3,000 RPM (revolutions per minute) and a maximum engine speed of 13,700 RPM. These values reflect the range of speeds the engine can operate at.

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What is the spindle speed of the TS 500i circular saw?

The TS 500i circular saw has a spindle speed of 5,350 RPM. This is the speed at which the blade rotates, and it's crucial for cutting performance.

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Ladder Rung Load Test

Extension and roof ladders must withstand a weight of 1,000 lbs when testing individual rungs.

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Ladder Rung Spacing

The distance between ladder rungs should be 14 inches.

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Ladder Weight Rating

Extension and roof ladders have a maximum weight rating of 750 lbs, with a 4:1 safety factor.

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Ladder Beam Width

The minimum distance between the ladder beams should be 16 inches for stability.

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Ladder Safety Factor

The safety factor of 4:1 means the ladder can safely handle four times its rated weight.

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Ladder Force Limit

A ladder should not require more than 75 lbs of force to raise. If it feels heavier, immediately clean and wax the ladder.

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Ladder Waxing

Apply bar wax liberally to the bed and fly section of the ladder.

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Ladder Waxing Frequency

Wax your ladder at least every 6 months, adjusting for usage.

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What happens if a ladder's heat sensor turns black?

Aluminum ladders have heat sensors that turn black if exposed to temperatures exceeding 300°F. This indicates the ladder has been compromised and should be taken out of service.

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Why are black heat sensors a problem for ladders?

A black heat sensor means the aluminum ladder has reached 300°F, which can lead to a 25% decrease in its weight capacity.

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What should you do if you find a black heat sensor on a ladder?

If a ladder's heat sensor turns black, it should be immediately taken out of service and reported to the Tools and Equipment department.

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Why are heat sensors important on aluminum ladders?

The heat sensors on aluminum ladders are visual warnings that indicate potential damage due to excessive heat.

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What happens to a ladder's strength at high temperatures?

The 6061-T6 alloy used in aluminum ladders can lose significant load capacity when exposed to temperatures above 300°F.

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What is the output of the EU1000i?

The Honda EU1000i generator has a maximum output of 1000 watts and a rated output of 900 watts.

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How does the EU2000i compare to the EU1000i?

The Honda EU2000i generator has a larger engine and more power than the EU1000i, with a maximum output of 2000 watts and a rated output of 1600 watts.

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How long does the EU1000i run on a full tank?

The EU1000i runs for approximately 3 hours on a full tank of fuel under full load.

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How long does the EU2000i run on a full tank?

The EU2000i has a larger fuel tank than the EU1000i, allowing it to run for approximately 4 hours on a full tank under full load.

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What are the weights of the EU1000i and EU2000i?

The EU1000i weighs 29 pounds, while the EU2000i, with its larger engine and fuel tank, weighs 45 pounds.

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What is the Max Power Rating of a Honda EB 5000X?

The maximum power output a Honda EB 5000X generator can produce for a short duration, up to 30 minutes.

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What is the Continuous Operation Rating of a Honda EB 5000X?

The consistent power output a Honda EB 5000X generator can sustain over a prolonged period.

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What is the Max Output of a Honda EB 5000X?

The maximum amount of power a Honda EB 5000X generator can generate for a very brief period, only 10 seconds.

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What is the Max Power Rating of a Honda EM 6500SX?

The maximum power output a Honda EM 6500SX generator can produce for a short duration, up to 30 minutes.

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What is the Continuous Operation Rating of a Honda EM 6500SX?

The consistent power output a Honda EM 6500SX generator can sustain over a prolonged period.

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POSITIVE PRESSURE RAMFAN EV400 - Power Settings & Air Output

The POSITIVE PRESSURE RAMFAN EV400 is a powerful electric fan with a dual current toggle switch for powering from different sources. It has two settings: 15-amp for house circuits or generators, and 20-amp for fire truck circuits. Depending on the setting, its air output ranges from 9,184 to 11,381 cfm.

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GAS RAMFAN GX200 - Power, Runtime, & CO Production

The GAS RAMFAN GX200 is a gas-powered fan designed for ventilation. With a 2.1 horsepower engine, it boasts a 21,760 cfm air output and runs for about 1 hour and 40 minutes. Be cautious as it produces CO.

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BATTERY RAMFAN EX50Li - Power Sources, Runtime, & Air Output

The BATTERY RAMFAN EX50Li is an 0.8 horsepower fan powered by lithium-ion batteries. It boasts a 9,635 cfm air output on AC power and 10,120 cfm on DC power, with runtime varying based on the number of battery packs used.

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Which RAMFAN has the highest air output - ELECTRIC or GAS?

The GAS RAMFAN GX200 is a powerful fan with a strong air output. It's capable of moving 21,760 cfm of air. This is significantly higher than the electric RAMFAN's 11,381 cfm output, making it a good choice for large-scale ventilation operations.

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Which RAMFAN has a longer runtime - GAS or BATTERY?

The BATTERY RAMFAN EX50Li has a runtime that varies depending on the number of battery packs connected. With four battery packs, it can operate for up to 90 minutes on DC power. The GAS RAMFAN, on the other hand, has a fixed run time of 1 hour and 40 minutes. So, for extended operations, the BATTERY RAMFAN might be more suitable.

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SUPERVAC P164SE (old red box fan) specs

The SUPERVAC P164SE (old red box fan) is a 1/3 horsepower smoke ejector with a 5,200 cfm output. It operates on 115/230-volt AC, 50/60 hertz power and draws 700 watts during normal operation.

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RAMFAN EFC150X (new red box fan) specs

The RAMFAN EFC150X (new red box fan) is a more powerful smoke ejector with 1.5 horsepower and a 4,459 cfm output. It runs on 115/230-volt AC, 50/60 hertz and draws 15 amps during normal operation.

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SUPERVAC HF164E (yellow box fan) specs

The SUPERVAC HF164E (yellow box fan) is a 1.5 horsepower smoke ejector with a high output of 9,620 cfm. It runs on 115/230-volt AC, 50/60 hertz and has a normal run wattage of 2,100 watts.

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What are smoke ejectors?

Smoke ejectors are ventilation fans designed to remove smoke and heat from a building during a fire. They help to improve visibility and make it safer for firefighters to work.

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Yellow Mainline Rope

A 200-foot long rope with 8 mm diameter, made of reflective, lightweight, durable, and fire-resistive material. It has a minimum breaking strength of 3,484 pounds. One end is attached to the mainline bag with a locking carabiner, and the other end has a non-locking carabiner and a company ID Tag. It deploys from only one end of the yellow mainline bag.

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Red Tagline Bags

Four 30-foot long taglines made of red rope with 8 mm diameter. Each tagline bag has a non-locking carabiner that can be attached to the mainline bag or clipped to a firefighter.

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Mainline Rope

The main rope used in the mainline system, attached to the mainline bag and used for rescue operations.

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Non-Locking Carabiner

A non-locking carabiner used on the mainline and tagline ropes. They are designed for quick and easy attachment and release.

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ID Tag

A tag attached to the mainline rope and each tagline bag, used for identification and accountability.

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What is the Hydra-Ram II?

A hydraulic forcible entry tool designed for spreading doors and other obstacles, it operates without hoses or auxiliary pumps, generating 10,000 lbs of force with a spreading distance of 6 inches.

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Explain the Hydra-Ram's three-stage hydraulic system.

The Hydra-Ram features a three-stage hydraulic system where the piston's movement per pump stroke decreases as the pressure increases. This ensures efficient force distribution.

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How do you lubricate the Hydra-Ram?

To maintain its functionality, the Hydra-Ram requires regular lubrication. Extend the piston fully, clean it with a rag, and apply 3-in-One Multipurpose Oil.

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What is the HURST RABBIT Tool?

The HURST RABBIT tool is a hydraulic forcible entry tool designed for spreading doors and other obstacles, producing 8,000 lbs of force with a spreading distance of 4 inches. It includes a manual pump and a 6-foot hose.

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How do you operate the HURST RABBIT tool?

To operate the HURST RABBIT tool, turn the pump relief valve knob clockwise, then pump the handle up and down. To retract the tool, turn the relief valve counterclockwise.

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What is K-100?

K-100 is a fuel treatment and stabilizer designed to enhance engine performance and extend engine life. It can be used in both two-cycle mixed gas and straight gas.

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How is K-100 used?

K-100 should be added to both two-cycle mixed gas and straight gas to improve engine maintenance and longevity.

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What's the purpose of K-100 for the Division?

The K-100 fuel additive is intended to optimize the performance and lifespan of the Division's small engines.

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What types of fuel is K-100 compatible with?

K-100 is designed for both two-cycle mixed gas and straight gas, making it versatile for various engine types within the Division's fleet.

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Why does the Division use K-100?

The Division uses K-100 as a proactive measure to ensure the long-term health and optimal performance of their fleet of small engines.

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Columbus Fire's Ladder Fleet

Columbus Fire Department operates 12 platform ladders, 7 of which are used as primary firefighting vehicles. All these ladders are mid-mount and manufactured by Sutphen.

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Ladder Material

The aerial ladders on Columbus Fire Department's trucks are crafted from aluminum, specifically the 6061-T6 alloy.

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Aluminum Ladder Strength and Heat

The 6061-T6 aluminum alloy used in the ladders can lose a significant amount of their weight capacity when exposed to temperatures exceeding 300°F.

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Black Heat Sensor

Aluminum ladders have heat sensors that turn black if exposed to temperatures over 300°F. This indicates the ladder has been compromised and should be taken out of service.

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Action for Black Heat Sensor

If a ladder's heat sensor turns black, it should be immediately taken out of service and reported to the Tools and Equipment department.

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What are Huck Bolts?

Huck Bolts are a type of two-piece fastener that never comes loose once installed, even in high-vibration environments. They do not require torquing.

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What are Huck Bolts used for?

Huck Bolts are designed for high-vibration environments and guarantee that the fastener remains secure. They are commonly used in applications where traditional bolts would loosen due to constant shaking, such as on aircraft or heavy machinery.

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How do Huck Bolts work?

Unlike traditional bolts, Huck Bolts are installed using a special process that creates a permanent mechanical interlock between the two pieces. This interlock prevents the bolt from loosening, even under extreme vibrations.

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What are the advantages of using Huck Bolts?

Huck Bolts are a superior alternative to traditional bolts in high-vibration applications. They ensure a secure connection without the need for regular torquing, reducing maintenance and improving reliability.

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Where are Huck Bolts commonly used?

Huck Bolts are a popular choice in various industries, including aerospace, automotive, and heavy equipment. They are known for their strength, reliability, and ability to withstand demanding conditions.

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CFD's Oldest Ladder Truck

This ladder is known for its older interlock system, requiring two firefighters to operate the short-jacking function.

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Aerial Reach

The ladder's aerial extends to a maximum height of 93 feet when fully raised.

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Outrigger Length

The truck's outriggers extend to a length of 5 feet 3 inches each.

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Waterway Tip Load

When the waterway is pressurized, the ladder's tip can handle a maximum weight of 500 pounds.

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Outrigger Spread

The distance between the truck's fully extended outriggers is 18 feet.

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Outrigger Spread (Older SPH)

The total distance between the fully extended outriggers of the truck, which is 18 feet on the older SPH models.

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CFD Platform Pump Capacity

All CFD platforms have a 1,500 GPM rated pump, but they can discharge up to 2,000 GPM. They lack water tanks and pre-connects, so a water source is crucial before putting the pump in gear to prevent damage.

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Why is a water supply crucial for the pump?

The pump should not be put in gear without a water supply. Doing so can lead to damage and failure.

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What is the maximum discharge capacity of the CFD platform pump?

The pump has a maximum capacity of 2,000 GPM.

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What is the rated capacity of the CFD platform pump?

The pump is rated at 1,500 GPM.

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What features are missing from CFD platforms?

CFD platforms lack both water tanks and pre-connects.

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Stokes Basket Arm Weight Limit

The maximum weight the Stokes basket arms can support is 400 pounds per pair.

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Bucket Weight Limit with Stokes Arms

The maximum weight that can be placed in the bucket when using the Stokes basket arms is 500 pounds.

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CFD Platform Wind Rating

All CFD platforms have a wind rating of 35 MPH.

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CFD Platform Pump Rating

CFD platforms have a 1,500 GPM rated pump.

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CFD Platform Pump Discharge

CFD platforms can discharge up to 2,000 GPM.

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What to check if hydraulic power is lost on the aerial ladder?

If you lose hydraulic power while operating the aerial ladder, check the 5th wheel lockout light on the outrigger control box.

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What is a key difference between various Pierce tillers?

Different Pierce tillers purchased in various years might have variations in their aerial length. Some have 105' aerials, while others have 107' aerials.

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What is the capacity and limitations of CFD platform pumps?

All Columbus Fire Department (CFD) platforms are equipped with a 1,500 GPM rated pump, capable of discharging up to 2,000 GPM. However, they lack water tanks and pre-connects, making a water source essential before engaging the pump.

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What are the weight limits for Stokes basket arms and the bucket?

The Stokes basket arms can safely support a maximum weight of 400 pounds per pair. When using these arms, the total weight in the bucket should not exceed 500 pounds.

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What is the wind rating of CFD platforms?

All CFD platforms have a wind rating of 35 MPH.

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Nozzle Stowing

The nozzle should be stowed in its correct position before lowering the aerial ladder. Even though the ladder has a nozzle stow switch, visually confirm the nozzle is correctly positioned before bedding the ladder.

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Retracting the Aerial Ladder

Before lowering the aerial ladder, make sure it is fully retracted to avoid damaging the ladder or the tiller box. Refer to the alignment indicators to ensure all sections are properly retracted.

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Feathering the Aerial Ladder Controls

When using the aerial ladder, feather the controls to ensure a smooth and controlled movement. This helps to stabilize the ladder and prevent potential accidents.

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Waterway Pinning

During morning checks, ensure the waterway is pinned in rescue mode, as pinning it in water mode could obstruct victim rescue with the aerial ladder.

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Nozzle Direction

Firefighters must know where the nozzle is pointing before applying water pressure to the waterway. This prevents damage to the ladder, equipment, or nearby structures.

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EPU Maintenance

EPU/Auxiliary motors on aerial ladders need to be run for 1 minute during Monday checks and after every 10 hours of aerial use to prevent overheating.

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EPU Operating Time

The EPU on ALF ladders can be operated for a maximum of 2 minutes at a time, followed by a 7-minute cooldown period to prevent overheating.

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Short-jacked Operations

Short-jacked operations require the operator to override the truck's interlocks using either the Interlock Override Buttons or the Manual Valve Control.

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Stokes Basket Weight Limit

The Stokes basket arms can support a maximum weight of 400 pounds per pair, with a 500-pound limit when used with the bucket.

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What is the duty cycle of the EPU on CFD Pierce ladders?

The EPU motor on CFD Pierce ladders can run for 30 minutes before needing a 30-minute cool down. Firefighters must remember that operations will be slower with the EPU in use.

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What is the weight limit of the Stokes basket arms?

The maximum weight that the Stokes basket arms can support is 400 pounds per pair.

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What is the outrigger spread of CFD platforms?

The distance between the truck's fully extended outriggers is 18 feet.

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What are the pump features of CFD platforms?

The platform pump has a maximum discharge capacity of 2,000 GPM but is rated at 1,500 GPM. CFD platforms lack water tanks and pre-connects, so a water source is crucial before engaging the pump to avoid damage.

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How are on-board generators powered?

On-board generators are powered by either diesel or PTO. PTO generators are connected to the drivetrain and need a specific engine RPM (less than 1100) to engage the hydraulic motor.

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When does the PTO hydraulic generator turn on?

The hydraulic generator activates when the engine RPM drops below 1100, indicating the vehicle is idling. The PTO HYD GEN button is often accidentally pressed while driving.

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Where are Huck Bolts used?

They are commonly used in applications with constant vibrations, such as aircraft and heavy machinery.

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What are L-1, L-8, L-28, L-2, and L-26 lights?

Newer LED lights on certain ladder companies that run on the truck's 12v battery system. These lights are energy efficient and provide better illumination.

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How hot does a 500w halogen bulb get?

A traditional halogen bulb throws extreme heat up to 570°F that must be handled with caution.

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What does a black heat sensor on an aluminum ladder mean?

Aluminum ladders have heat sensors that turn black when exposed to excessive heat, indicating damage and compromised structure.

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How does excessive heat impact aluminum ladders?

Excessive heat above 300°F can weaken the structural integrity of aluminum ladders, causing a reduction in their weight capacity by 25%.

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What do you do if you find a black heat sensor on an aluminum ladder?

If a ladder's heat sensor turns black, it should be immediately taken out of service and reported to the Tools and Equipment department for inspection and potential replacement.

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What is the normal voltmeter reading when the engine is running?

The reading on the voltmeter should be between 13 and 14.4 when the engine is running. The minimum reading is 12.8 (which is when the load manager starts shedding accessories).

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What is the normal oil pressure range?

The normal operating range for oil pressure is between 40 - 60 PSI (Around 20 PSI at idle).

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What is the normal engine temperature range?

The engine temperature should be between 190°F - 212°F.

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What is the normal transmission temperature range?

The transmission temperature should be between 160°F - 200°F.

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What should you do if the air pressure is below 70 PSI?

If the air pressure is below 70 PSI when the engine is off, it should be started to ensure the pressure will build to 120 PSI.

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What is the maximum aerial reach of a CFD ladder?

A CFD ladder's aerial reaches a maximum height of 93 feet when fully extended.

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What is the maximum weight a CFD ladder's tip can handle?

A CFD ladder's tip can support a maximum weight of 500 pounds when the waterway is pressurized.

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What is the outrigger spread of a CFD truck?

The distance between a CFD truck's fully extended outriggers is 18 feet.

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What is the pumping capacity of a CFD platform?

CFD platforms have a 1,500 GPM rated pump, meaning they can deliver that much water per minute. However, they can discharge up to 2,000 GPM, but only with a water source.

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What is the weight limit of the Stokes basket arms on a CFD platform?

The Stokes basket arms on a CFD platform can support a maximum weight of 400 pounds per pair.

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Rescue Priority Order

The order of rescue priority is based on the severity of threat first, then the number of victims in danger, followed by prioritizing the larger fire area, and lastly considering any exposures that may be at risk.

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Most Severely Threatened

The most severely threatened victims are prioritized for immediate rescue, regardless of their number. This means ensuring their safety takes precedence over rescuing a larger group in less imminent danger.

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Largest Number of Victims

The largest number of victims in danger are prioritized after the most severely threatened victims. This helps ensure the most efficient use of resources and maximizes the chance of saving the most lives.

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Exposures

Exposures are structures or areas that may be at risk of being damaged or ignited by the fire. These are prioritized last in rescue operations, as ensuring the safety of victims is paramount.

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Remainder of the Fire Area

The remainder of the fire area is prioritized after the most severely threatened victims and the largest number of victims, as these areas may contain additional victims or may be necessary for firefighters to access other parts of the building.

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Duo Safety Ladder Positioning

Duo Safety recommends positioning all extension ladders with the fly section out, claiming a 4% increase in strength compared to having the bed section out.

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Huck Bolts

Huck Bolts are two-piece fasteners that provide a permanent, secure connection, even in high-vibration environments. They do not require torquing.

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What is the mechanical advantage of gapping a door with an adz?

Gapping a door with a 2-inch wide adz provides a 15:1 mechanical advantage. This means that for every 100 pounds of force applied to the forks, approximately 1,500 pounds of force is applied to the door.

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What does a black heat sensor on an aluminum ladder indicate?

Aluminum ladders are equipped with heat sensors that turn black when exposed to temperatures exceeding 300°F, indicating potential damage and a reduction in the ladder's weight capacity.

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What is the output of the Honda EU1000i generator?

The Honda EU1000i generator has a maximum output of 1000 watts and a rated output of 900 watts.

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Describe the Hydra-Ram II forcible entry tool.

The Hydra-Ram II is a hydraulic forcible entry tool that generates 10,000 lbs of force with a spreading distance of 6 inches. It operates without hoses or auxiliary pumps.

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Explain the SUPERVAC P164SE smoke ejector.

The SUPERVAC P164SE (old red box fan) is a 1/3 horsepower smoke ejector with a 5,200 cfm output. It runs on 115/230-volt AC, 50/60 hertz and draws 700 watts during normal operation.

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What is the K-tool?

The K-tool is a specialized tool used in fire rescue, particularly for scenarios involving doors or locks that need to be opened. It is a valuable tool for through-the-lock considerations.

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What is the K-tool used for?

The K-tool is a versatile tool for door and lock manipulation, and it is specifically built for pushing through locks, making it a useful tool for rescue scenarios.

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How powerful is the pump on CFD platforms?

Most CFD platforms are fitted with a powerful 1,500 GPM pump. It not only meets the standard rating but can also deliver up to 2,000 GPM in situations demanding higher flow rates.

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Describe the features of CFD platform pumps.

The CFD platforms have a pump designed for a specific purpose. It has a rated capacity of 1,500 GPM and a maximum discharge capacity of 2,000 GPM. However, it's essential to remember that these platforms lack both water tanks and pre-connects.

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Obstacles in Vacant Structures

Vacant structures often have obstacles like plywood, VPS systems, or polycarbonate window coverings that prevent access.

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What does VPS stand for?

VPS stands for Vacant Property Security Systems, designed to deter unauthorized entry into vacant structures.

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What are Polycarbonate Window Coverings?

Polycarbonate window coverings are often used to protect vacant buildings from damage and vandalism.

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How is plywood used in vacant structures?

Plywood is often used to board up windows and doors in vacant structures to prevent unauthorized entry.

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What are the challenges of vacant structures?

These obstacles can pose challenges to firefighters, requiring careful planning and consideration before entry.

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Primary Search Size-Up Factors

Factors influencing the performance of a primary search, such as the presence of life hazards, victim location and condition, building construction, fire extent, hazards to search crews, water source availability, equipment and personnel resources, and firefighter experience levels.

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Stokes Basket Arm Limit

The maximum weight that can be placed in the ladder bucket when using the Stokes basket arms to support a victim.

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Platform Wind Rating

The maximum wind speed at which CFD platform ladders can safely operate.

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Primary Search Size-Up

The process of evaluating factors such as life hazards, victim details, and fire conditions before a primary search.

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Platform Pump Rating

The rated capacity of the pump on CFD platform ladders, signifying the maximum amount of water it can deliver.

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What is the primary rescue team's role?

Primary search crews made 58% of rescues, fire attack teams made 25%, and secondary search crews made only 4%.

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How reliable are bystander reports?

Bystanders or occupants reported the presence of victims inside the building in 69% of cases where victims were found. However, there was no report from bystanders/occupants in 28% of cases where victims were found, and 3% of victims were found after occupants reported everyone being out.

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Where are most victims found?

The majority (57%) of rescues took place on the first floor, followed by the second floor (30%). Only a small percentage of rescues occurred in the basement (4%), third floor (7%), and above the third floor (2%).

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What is the Hydra-Ram?

Using a hydraulic three-stage system, the Hydra-Ram generates 10,000 lbs of force with a spreading distance of 6 inches, eliminating the need for hoses and auxiliary pumps.

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What type of ladders does CFD use?

Columbus Fire Department utilizes 12 platform ladders, 7 of which serve as primary firefighting vehicles. All these ladders are mid-mount and manufactured by Sutphen. The aerial ladders are made of aluminum, specifically 6061-T6 alloy. However, this aluminum alloy can lose significant weight capacity when exposed to temperatures exceeding 300°F. This is indicated by black heat sensors.

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VEIS Usage in Rescues

VEIS was used for 21% of the first 2,000 rescues recorded by the Firefighter Rescue Survey, indicating its significance in rescue operations.

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Aerial Ladder Reach

The aerial ladder on a fire truck can extend to a maximum height of 93 feet when fully raised, providing firefighters with the reach to access higher areas.

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What is the most common rescue method used?

The most common method used in these rescues is to remove the victim by dragging them without using any tools.

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What is the less common rescue method?

In 3% of rescues, webbing drags were used instead of dirty drags, implying it's a less common but still important technique.

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How are victims often brought down from a height?

Ground ladders are used 14% of the time, suggesting they are a significant part of rescue operations.

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What advanced tool is used in a limited number of rescues?

Aerial ladders are used only 1% of the time, indicating they are a specialized rescue tool.

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What is the most common rescue method and its significance?

The results show that dirty drags are the most common rescue method, followed by ground ladders, highlighting the importance of these techniques for firefighters.

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What is the waterway tip load?

Before using the ladder, ensure that the waterway is pressurized and the ladder's tip can hold a maximum weight of 500 pounds.

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Why is a water source essential for the platform pump?

The platform pump should never be turned on without a water source connected. Doing so can damage the pump.

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What is the maximum weight limit of the Stokes basket arms?

The maximum weight that the Stokes basket arms can support is 400 pounds when used on a CFD platform.

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What is the outrigger spread on a CFD platform?

When fully extended, the distance between the outriggers of a CFD platform is 18 feet.

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What is the wind rating of a CFD platform?

All CFD platforms have a wind rating of 35 MPH. This indicates the maximum wind speed conditions under which a CFD platform ladder can safely operate.

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Fan Placement for Ventilation

To ensure effective ventilation, the fan's airflow cone should completely cover the opening, including corners.

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Fan Distance from Doorway

The optimal distance for placing a fan at a doorway is roughly 4 to 6 feet away.

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Fan's Role in Ventilation

A fan's primary function is to create a flow of air that pushes smoke and heat outwards, improving visibility and safety for firefighters.

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Fan Airflow Pattern

The fan's airflow pattern should be directed to cover the entire opening to ensure effective ventilation.

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Importance of Fan Placement and Airflow

Proper fan placement and airflow direction are crucial for efficient ventilation and improved safety during firefighting operations.

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Why ventilate flat roofs at least 6 feet from the edge?

Ventilating a flat roof at least six feet away from the edge helps prevent damage to the roof, ensures proper airflow, and minimizes the risk of water intrusion.

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What is the benefit of ventilating flat roofs 6 feet from the edge?

This distance allows for proper airflow, prevents damage to the roofing material, and reduces the risk of water pooling and damage.

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What can happen if flat roof ventilation is too close to the edge?

Ventilating too close to the edge can put stress on the roof material, leading to potential tears or damage.

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How does the 6-foot rule for flat roof ventilation ensure proper airflow?

Six feet away provides enough space for proper airflow without interfering with the roof's structure.

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How does the 6-foot rule reduce the risk of water damage?

This distance helps to prevent the buildup of moisture under the roof, which can lead to mold and rot.

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What is the specific gravity of natural gas?

Natural gas is lighter than air and will rise.

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What are the operating pressures for gas lines?

The amount of pressure needed for a particular area is determined by the local gas company. Low pressure: up to 1/2 pound, Medium pressure: 10-60 psi, High pressure: over 60 psi.

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Is natural gas heavier or lighter than air?

Natural gas has a specific gravity between 0.60 and 0.70, meaning it is lighter than air.

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How can you determine the gas line pressure by sound?

The sound of a gas leak gives you an idea of the pressure. A loud sound indicates high pressure, and a quiet noise indicates low pressure.

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What is specific gravity?

Specific gravity is a comparison of a substance's density to the density of air. Air has a specific gravity of 1.0. Natural gas has a specific gravity between 0.60 and 0.70, indicating it is lighter than air.

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Natural Gas Flammability Range

Natural gas is considered flammable when its concentration in air falls between 5% and 15%.

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What is the LEL for Natural Gas?

The Lower Explosive Limit (LEL) is the lowest gas concentration that will ignite, which is 5% for natural gas.

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What is the UEL for Natural Gas?

The Upper Explosive Limit (UEL) is the highest gas concentration that will ignite, which is 15% for natural gas.

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What is the Rated Output of the Honda EU1000i?

The Honda EU1000i generator has a maximum output of 1000 watts, but a rated output of 900 watts, meaning it can consistently deliver 900 watts of power over a prolonged period.

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How Much Power Does the EU2000i Offer?

The Honda EU2000i generator has a larger engine and more power than the EU1000i, with a maximum output of 2000 watts and a rated output of 1600 watts.

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What voltage do most elevator cars operate at?

The electrical system that powers the elevator itself operates at a higher voltage, either 480 volts or 600 volts.

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What voltage powers the lights and fans inside an elevator car?

The interior lights and ventilation fans within the elevator car run off a standard 120-volt circuit.

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How does 120V 3PH equate to 480 volts?

The 120V listed on the photo is actually three hot legs, which combine to 480 volts.

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What is the safety factor for extension and roof ladders?

The safety factor of 4:1 means that the ladder can safely handle four times its rated weight.

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Study Notes

Ladder Positioning (Extension Ladders)

  • Duo Safety recommends positioning extension ladders with the fly section extended outward and the bed section closest to the building.

Other Ladder Information

  • Existing ladder information remains unchanged.
  • Gapping a door with an adz (2" wide) provides a 15:1 mechanical advantage.
  • A 30" Pro-Bar length and a 2" adz are used.
  • Applying 100 lbs of force on the forks will generate approximately 1,500 lbs of force on the adz for gapping.
  • The K-tool is a good option for through-the-lock considerations.
  • Vacant structures may have obstacles over entry points, such as plywood, Vacant Property Security (VPS) Systems, or polycarbonate window coverings.

Distance Marker Knot Procedures

  • Check ceiling tiles for fire above or behind firefighters
  • Check firefighter air levels
  • Perform a PAR (presumably a procedure like Pre-Arrival Risk assessment)

Primary Search Size-Up Factors

  • Known life hazard vs. potential life hazard: Assessing if a known life hazard exists during a primary search.
  • Occupant accountability/survivability: Determining if occupants are accounted for and their potential survivability.
  • Number, location, and condition of victims: Pinpointing the number, location, and condition of victims during searching.
  • Building construction: Considering the building's structural components during a primary search.
  • Size and extent of the fire: Evaluating the fire's scope and size.
  • Hazards to search crews: Identifying potential hazards for search teams.
  • Established water source: Evaluating availability of water.
  • Available equipment/staffing: Assessing equipment and personnel availability.
  • Firefighter experience levels: Considering the experience levels of firefighters conducting the search.

Rescue Data

  • Primary search crews made 58% of rescues.
  • Fire attack teams made 25% of rescues.
  • Secondary search crews made 4% of rescues.
  • Victims were reported inside by bystanders/occupants in 69% of the times victims were found.
  • There was no bystander/occupant report on potential victims in 28% of the times that victims were found.
  • Victims were found after bystanders/occupants reported all were out of the building in 3% of cases.
  • Victim locations in 2,000 rescues:
    • Basement: 4%
    • First floor: 57%
    • Second floor: 30%
    • Third floor: 7%

    • Third Floor: 2%

  • VEIS (Ventilation, Escape, Inspection, Search) was used for 21% of the first 2,000 rescues.
  • In 82% of 2,000 rescues, a "dirty drag" was used to remove victims.
  • Webbing drags were used in 3% of 2,000 rescues.
  • Victims removed via ground ladder in 14% of 2,000 rescues.
  • Aerial ladders used in 1% of 2,000 rescues.

Fan Placement

  • Fans are typically positioned at large openings like doorways.
  • A good starting point is 4-6 feet from the door.
  • Firefighters aim to create a cone of air that covers the whole doorway, including the corners.

Ventilation of Residential Flat Roofs

  • When ventilating a residential flat roof, a best practice is to always ventilate at least six feet away from the edge of the roof.

Line Operating Pressures

  • Operating pressure can be assessed by listening for the sound of blowing gas from a distance; elevated pressure is suggested by that sound.
  • Operating pressure varies by location and is determined by the gas company.
  • Operating pressures may include:
    • Low Pressure: Up to 0.5 pounds of pressure
    • Medium Pressure: 10-60 psi (can drop to 2 psi during periods of high demand).
    • High Pressure: Anything exceeding 60 psi.

Specific Gravity

  • Natural gas has a specific gravity of .60-.70.
  • Air has a specific gravity of 1.0.
  • Natural gas is lighter than air and will rise.

Chemical Make-up

  • Natural gas is primarily methane (CH4).
  • Natural gas has an explosive range of 5% to 15% gas to air.
  • Concentrations below 5% or above 15% will not support combustion.
  • 5% gas is the lower explosive limit (LEL).
  • 15% is the upper explosive level (UEL).

Elevator Information

  • Elevator cars operate on 480V or 600V (electric).
  • Lights and ventilation fans inside the elevator car typically run on 120V.

Rescue Options

  • Option One: Elevator Technician Arrival
  • Option Two: Elevator Fire Service Phase 1
  • Option Three: Elevator System Reset
  • Option Four: Hoistway Door Rescue
  • Option Five: Technical Rescue Through the Top of the Car

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This quiz tests your knowledge of the essential equipment requirements for platform ladders. Focus on the specifications like the minimum length of the pike pole and additional tools necessary in the ladder bucket. Ensure you are familiar with these crucial safety standards.

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