Podcast
Questions and Answers
When using an ANSUL extinguisher on a Class C electrical fire, what critical consideration should be taken into account?
When using an ANSUL extinguisher on a Class C electrical fire, what critical consideration should be taken into account?
- Ensuring the extinguisher is specifically rated for Class C fires, regardless of other ratings.
- The proximity to water sources to prevent the spread of fire via electrical conduction.
- The extinguisher's ability to effectively cool electrical components to prevent reignition.
- The potential hazard created by the reduction of visibility due to the dry chemical cloud. (correct)
An ANSUL extinguisher's effectiveness is significantly limited when used on which type of fire?
An ANSUL extinguisher's effectiveness is significantly limited when used on which type of fire?
- Class B fires involving flammable liquids.
- Surface fires in small quantities of Class A combustibles.
- Class C fires involving electrical equipment.
- Deep-seated Class A fires. (correct)
What is the primary function of the cone-shaped tip on the low-flow nozzle of dry chemical extinguishers used by the Philadelphia Fire Department?
What is the primary function of the cone-shaped tip on the low-flow nozzle of dry chemical extinguishers used by the Philadelphia Fire Department?
- To provide a concentrated stream for precise application.
- To create a wide dispersion pattern for maximum operator protection. (correct)
- To increase the velocity of the dry chemical for greater range.
- To regulate the flow rate based on the operator's grip.
Why is it crucial to check the hose couplings of a fire extinguisher for tightness, corrosion, and cracks?
Why is it crucial to check the hose couplings of a fire extinguisher for tightness, corrosion, and cracks?
What does a red stem indicator, found on some Ansul indicator fill caps, signify during fire extinguisher inspection?
What does a red stem indicator, found on some Ansul indicator fill caps, signify during fire extinguisher inspection?
When inspecting a stored pressure water extinguisher, what constitutes a critical factor in determining its readiness for use?
When inspecting a stored pressure water extinguisher, what constitutes a critical factor in determining its readiness for use?
Why should pressure water extinguishers NOT be used on Class "C" fires?
Why should pressure water extinguishers NOT be used on Class "C" fires?
Which maintenance step is crucial for an Indian Fire Pump to ensure proper operation and prevent damage?
Which maintenance step is crucial for an Indian Fire Pump to ensure proper operation and prevent damage?
In the context of fire extinguisher maintenance, what is the purpose of 'hefting' an extinguisher?
In the context of fire extinguisher maintenance, what is the purpose of 'hefting' an extinguisher?
What is the correct method for determining the fullness of a stored pressure water extinguisher during inspection?
What is the correct method for determining the fullness of a stored pressure water extinguisher during inspection?
Why is it important to keep the small vent hole in the tank-fill cap of an Indian Fire Pump clear?
Why is it important to keep the small vent hole in the tank-fill cap of an Indian Fire Pump clear?
What feature of ABC Fire Extinguishers allows them to quickly put out many different types of fires?
What feature of ABC Fire Extinguishers allows them to quickly put out many different types of fires?
What is the recommended action if the hose of a fire extinguisher shows signs of severe weather checking or abrasion?
What is the recommended action if the hose of a fire extinguisher shows signs of severe weather checking or abrasion?
During the recharging process of a stored pressure water extinguisher, what is the correct torque range for hand-tightening the valve collar nut, and why is precision important?
During the recharging process of a stored pressure water extinguisher, what is the correct torque range for hand-tightening the valve collar nut, and why is precision important?
When conducting a visual inspection of a fire extinguisher, what specific elements should be examined for evidence of physical damage, corrosion, or other impairments?
When conducting a visual inspection of a fire extinguisher, what specific elements should be examined for evidence of physical damage, corrosion, or other impairments?
During the inspection of a fire extinguisher equipped with an Ansul indicator fill cap, what is the significance of a missing or broken tamper-proof seal?
During the inspection of a fire extinguisher equipped with an Ansul indicator fill cap, what is the significance of a missing or broken tamper-proof seal?
During the recharging of a stored pressure water extinguisher, after rinsing the cylinder, what is the correct procedure for refilling it with water?
During the recharging of a stored pressure water extinguisher, after rinsing the cylinder, what is the correct procedure for refilling it with water?
Following the use of an Indian Fire Pump, what specific maintenance step is crucial to maintain its operational readiness?
Following the use of an Indian Fire Pump, what specific maintenance step is crucial to maintain its operational readiness?
What is the significance of the left-hand thread on the CO2 cartridge of an ANSUL extinguisher?
What is the significance of the left-hand thread on the CO2 cartridge of an ANSUL extinguisher?
What is the potential consequence of using excessive force, such as a wrench, when tightening the valve collar nut during the recharging of a stored pressure water extinguisher?
What is the potential consequence of using excessive force, such as a wrench, when tightening the valve collar nut during the recharging of a stored pressure water extinguisher?
During an inspection, what should be done if insects are found obstructing the nozzle tip and handle of a fire extinguisher?
During an inspection, what should be done if insects are found obstructing the nozzle tip and handle of a fire extinguisher?
What is the correct procedure for preparing an Indian Fire Pump for dry storage?
What is the correct procedure for preparing an Indian Fire Pump for dry storage?
What is the ideal pressure range, in psi, to pressurize a 2 1/2 gallon stored pressure water extinguisher with air during recharging, and what precaution should be taken regarding the pressure regulator?
What is the ideal pressure range, in psi, to pressurize a 2 1/2 gallon stored pressure water extinguisher with air during recharging, and what precaution should be taken regarding the pressure regulator?
During the inspection of an Indian Fire Pump, what specific feature should be checked regularly to ensure the correct spray pattern, and what action should be taken if a problem is detected?
During the inspection of an Indian Fire Pump, what specific feature should be checked regularly to ensure the correct spray pattern, and what action should be taken if a problem is detected?
When inspecting a stored pressure water extinguisher, what is the primary reason for ensuring the operating instructions on the nameplate (label) are facing outward?
When inspecting a stored pressure water extinguisher, what is the primary reason for ensuring the operating instructions on the nameplate (label) are facing outward?
Prior to recharging a stored pressure water extinguisher, what critical step must be taken to ensure safety and proper function, and what potential hazard does this step mitigate?
Prior to recharging a stored pressure water extinguisher, what critical step must be taken to ensure safety and proper function, and what potential hazard does this step mitigate?
According to the manual, what is the operator's protection benefit of the wide pattern produced by the cone-shaped tip of a dry chemical extinguisher's nozzle?
According to the manual, what is the operator's protection benefit of the wide pattern produced by the cone-shaped tip of a dry chemical extinguisher's nozzle?
When examining the hose of a fire extinguisher, what specific types of damage should be noted as requiring immediate attention?
When examining the hose of a fire extinguisher, what specific types of damage should be noted as requiring immediate attention?
During the recharging procedure of a stored pressure water extinguisher, what is the recommended method for detecting leaks in the collar, gauge, cylinder welds, and valve orifice, and why is this step essential?
During the recharging procedure of a stored pressure water extinguisher, what is the recommended method for detecting leaks in the collar, gauge, cylinder welds, and valve orifice, and why is this step essential?
What specific lubrication should be applied to the gland nut of an Indian Fire Pump to ensure smooth pump operation, and why is this lubrication necessary?
What specific lubrication should be applied to the gland nut of an Indian Fire Pump to ensure smooth pump operation, and why is this lubrication necessary?
What actions must be taken if a corroded or cracked coupling is discovered on a fire extinguisher hose?
What actions must be taken if a corroded or cracked coupling is discovered on a fire extinguisher hose?
According to the manual, what is the final step in recharging a stored pressure water extinguisher after leak testing and drying, and what is the correct orientation of the installed component?
According to the manual, what is the final step in recharging a stored pressure water extinguisher after leak testing and drying, and what is the correct orientation of the installed component?
What is the correct method for selecting the desired spray pattern on an Indian Fire Pump, and what are the available options?
What is the correct method for selecting the desired spray pattern on an Indian Fire Pump, and what are the available options?
When inspecting an ANSUL extinguisher, what specific maintenance check is required if the visual seal on the cartridge receiver is absent or broken?
When inspecting an ANSUL extinguisher, what specific maintenance check is required if the visual seal on the cartridge receiver is absent or broken?
What is the range and duration of the discharge from the standard low flow unpainted nozzle on dry chemical extinguishers used by the PFD?
What is the range and duration of the discharge from the standard low flow unpainted nozzle on dry chemical extinguishers used by the PFD?
During the inspection of an ANSUL extinguisher, beyond the visual seal, what specific indicator on the fill cap suggests the need for a complete maintenance check?
During the inspection of an ANSUL extinguisher, beyond the visual seal, what specific indicator on the fill cap suggests the need for a complete maintenance check?
What is the significance of 'hefting' a fire extinguisher during inspection beyond simply assessing its fullness?
What is the significance of 'hefting' a fire extinguisher during inspection beyond simply assessing its fullness?
During the recharging of a stored pressure water extinguisher, why is it critical to limit hand-tightening of the valve collar nut to a torque range of 100-125 in. lbs.?
During the recharging of a stored pressure water extinguisher, why is it critical to limit hand-tightening of the valve collar nut to a torque range of 100-125 in. lbs.?
In the maintenance of an Indian Fire Pump, what is the strategic reason for applying light oil or grease to the gland nut?
In the maintenance of an Indian Fire Pump, what is the strategic reason for applying light oil or grease to the gland nut?
Given that ABC fire extinguishers utilize monoammonium phosphate, what is the MOST critical operational advantage this provides over other dry chemical agents in the context of diverse fire scenarios?
Given that ABC fire extinguishers utilize monoammonium phosphate, what is the MOST critical operational advantage this provides over other dry chemical agents in the context of diverse fire scenarios?
Flashcards
Extinguisher Manual Purpose
Extinguisher Manual Purpose
This chapter provides general information about fire extinguishers used by the Philadelphia Fire Department.
Extinguisher Manual Responsibility
Extinguisher Manual Responsibility
It is each member's responsibility to use appropriate control based on their rank when implementing this manual.
ANSUL extinguisher uses
ANSUL extinguisher uses
Effective on Class B fires (flammable liquids, greases) and Class C (electrical) fires. Contains monoammonium phosphate base.
ANSUL limitations
ANSUL limitations
Signup and view all the flashcards
ANSUL Main Parts
ANSUL Main Parts
Signup and view all the flashcards
ANSUL Nozzle Features
ANSUL Nozzle Features
Signup and view all the flashcards
ANSUL Inspection Checklist
ANSUL Inspection Checklist
Signup and view all the flashcards
ANSUL External Examination
ANSUL External Examination
Signup and view all the flashcards
ABC Extinguisher
ABC Extinguisher
Signup and view all the flashcards
ABC Nozzle Inspection
ABC Nozzle Inspection
Signup and view all the flashcards
Indian Fire Pump
Indian Fire Pump
Signup and view all the flashcards
Indian Pump Filling
Indian Pump Filling
Signup and view all the flashcards
Indian Pump Spraying
Indian Pump Spraying
Signup and view all the flashcards
Indian Pump Maintenance
Indian Pump Maintenance
Signup and view all the flashcards
Indian Pump Tank Maintanence
Indian Pump Tank Maintanence
Signup and view all the flashcards
Indian Pump Storage Prep
Indian Pump Storage Prep
Signup and view all the flashcards
Pressurized Water Extinguisher warnings
Pressurized Water Extinguisher warnings
Signup and view all the flashcards
Inspection Checklist
Inspection Checklist
Signup and view all the flashcards
Extinguisher components
Extinguisher components
Signup and view all the flashcards
Cylinder maintenance
Cylinder maintenance
Signup and view all the flashcards
Air pressure installation.
Air pressure installation.
Signup and view all the flashcards
Study Notes
Extinguishers
- This manual chapter provides general information regarding fire extinguishers
Responsibility
- Each member should use appropriate control based on rank when implementing this chapter
General Information
- The Philadelphia Fire Department (PFD) carries different extinguishers for different purposes
ANSUL Extinguishers
- Weight options are 10 lbs or 30 lbs
- Effective for Class "B" fires (flammable liquids, greases)
- Not effective for deep-seated Class "A" fires due to little cooling effect and inability to penetrate the burning surface
- May be useful on surface fires in small amounts of Class "A" combustibles
- Can be used on Class "C" electrical fires
- Consideration should be given to possible hazards due to reduced visibility from the dry chemical cloud
- The multi-purpose dry chemical agent used has a monoammonium phosphate base
ANSUL Main Parts
- Main body (dry chemical chamber)
- CO2 cartridge with left hand thread
- Cartridge guard
- Hose
- Nozzle with trigger grip
- Fill cap
- Carrying handle
ANSUL Nozzle
- Equipped with a standard low flow unpainted nozzle
- Nozzle range is 5 to 20 feet with a duration of 10 to 25 seconds
- Wide spray pattern is due to a cone-shaped tip
- Design provides protection by breaking down the heat or thermal barrier
ANSUL Cartridge Seal
- Cartridges are sealed with a brass seal assembly using a copper seat
ANSUL Inspection
- Extinguisher should be in its designated place, visible, and accessible for immediate use
- Obstructions should be removed
- Check the visual seal on the cartridge receiver and any tamper-proof seal on the fill cap
- Absence or breakage may indicate unreported use or tampering, requiring a complete maintenance check
- Ansul indicator fill cap models have a red stem indicator which pops up if pressure has been relieved, needing a maintenance check
- Remove from mounting bracket and lift slightly to determine if it's filled
- Examine the shell, cartridge guard, cartridge receiver, and external parts for damage or corrosion
- Examine the hose for cuts, weather checking, abrasion, or deformation, which could cause rupture upon pressurization
- Check hose couplings for tightness, corrosion, or cracks, which could affect discharge or cause separation
- Check the nozzle tip and handle for damage or obstructions, especially from insects
- Secure the nozzle back into its holder
ABC Fire Extinguishers
- Weight options include 20 lbs and 5 lbs (medic units only)
- Use monoammonium phosphate, a dry chemical, and put out fires by smothering flames
ABC Inspection
- Check the nozzle tip and handle for damage or obstructions, especially from insects
- Secure the nozzle back into its holder
Indian Fire Pump
- Consists of a short hose attached to the tank with a nozzle pump on the discharge end
- Operated by holding the nozzle in one hand and the pump barrel in the other
- Nozzle is used as a handle to forcefully slide in and out, generating a water stream up to 40 feet
- Also has an add-on spray attachment
- The small vent hole in the tank-fill cap must be kept clear
Indian Fire Pump Refilling
- Remove the cap from the tank turning counterclockwise
- Make sure the strainer is in place in the neck of the tank
- Fill the tank with water to the desired level
- Reinstall the cap by turning clockwise and tightening
Indian Fire Pump Spraying
- Determine the desired spray pattern as the nozzle has a single-hole option for a stream or a two-hole option for a fan pattern
- Screw the appropriate nozzle option onto the end of the pump and hand tighten
- Operate the pump by sliding the handle in and out of the pump body. The pump will fill the cylinder on the “out” stroke and discharge the water on the “in” stroke
Indian Fire Pump Maintenance
- After each use or before storage, pump clean water through the pump to remove dirt or debris
- Apply light oil or grease at the gland nut
- Regularly check the nozzle for dirt or debris that may affect the spray pattern
- Regularly check the hose for cracks
Indian Fire Pump Tank Maintenance
- After each use or before storage, rinse the tank with clean water
- Check the cap vent check valve and cap gasket. Replace if showing signs of wear
- Clean any dirt or debris from the strainer basket
- Periodically check the straps for fraying. Replace as required
- For dry storage, leave the cap off the tank and store the tank upside down
Pressurized Water Extinguishers
- Capacity of 2 1/2 gallons
- Not rated for Class "C" fires and can be a shock hazard near electrical equipment
Pressurized Water Inspection
- Should be inspected monthly, or more often if circumstances to ensure readiness
- Located in designated place
- No obstructions to accessibility or visibility
- Operating instructions on nameplate (label) and facing outward
- Seals and tamper indicators are intact
- Fullness determined by weight
- Examine for damage, corrosion, leakage, or clogging in the nozzle
- Pressure gauge reading in the operable area
Pressurized Water Recharging
- Discharge remaining pressure and water
- Remove the valve assembly and disassemble by removing down tube with a wrench on the brass retainer, then remove the spring and valve stem from the valve assembly and also remove the collar O-ring
- Rinse parts with clean water, wipe dry with a soft cloth, and blow out the valve
- Inspect/replace parts if worn or damaged (replace valve stem and collar O-ring) and inspect/replace the down tube
- Rinse the cylinder with clean water and inspect the interior and replace the plastic fill tube before refilling with clean water until it overflows (2 ½ gallons)
- Install valve assembly properly and hand-tighten the valve collar nut to 100-125 in. lbs.
- Remove cap from air pressurizing valve and pressurize with 100 psi of air (regulator no more than 125 psi)
- Check for leaks using leak detection fluid on the collar, gauge, cylinder welds, and valve orifice
- Remove leak detection fluid by blowing out with air and wiping dry
- Install hose assembly into the operating valve
- Install ring pin with ring facing front of the extinguisher
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
