FAE (Fire Apparatus Engineer) Illinois Flashcards PDF

FAE (Fire Apparatus Engineer) Illinois Save Students also studied Textbook solutions Flashcard sets Study guides Practice tests Chemical Reaction Engineering 3rd Edition ISBN: 9780471254249 (2 more) Octave Lev...

FAE (Fire Apparatus Engineer) Illinois Save Students also studied Textbook solutions Flashcard sets Study guides Practice tests Chemical Reaction Engineering 3rd Edition ISBN: 9780471254249 (2 more) Octave Levenspiel 228 solutions Practice questions for this set  Learn 1 /7 Study with Learn What does One gallon of water contain in inches? Choose matching term 1 180 cubic inches 2 150 cubic inches 3 231 cubic inches 4 300 cubic inches Don't know? Terms in this set (73) 62.5 lbs What does one cubic foot of water weigh? 1.728 cubic inches What does One cubic foot of water contain in inches? 7.5 gallons What does One cubic foot of water contain in gallons? 8.35 lbs What does One gallon of water weigh? 231 cubic inches What does One gallon of water contain in inches? 2.304 feet How high will One psi elevate water? 14.7 psi What is atmospheric pressure at sea level? 34 feet What is the maximum lift for drafting? (Theoretically) How high does One inch (1") mercury (inches in vacuum) 1.13 feet of lift lift? What is the recommended minimum psi that should be 10 psi maintained on the compound gauge when taking water from a hydrant? Stored or potential energy What is Static pressure? that is available to force water through pipes and fittings, fire hose, and adapters. 1. 2 Hour: 100% @ 150 psi What are all the steps in Certification Test (pre-service 2. 1/2 hour: 70% @ 200 psi tests)? 3. 1/2 hour: 50% @ 250 psi 4. 10 minutes: 100% @ 165 psi (overload or spurt test) 100% @ 165 psi (done in What is a Spurt or Overload test? certification test for 10 minutes) 1. 20 minutes: 100% @ 150 psi What are all the steps in a Service Test? 2. 10 minutes: 70 % @ 200 psi 3. 10 minutes: 50% @ 250 psi Optional: 100% @ 165 psi (overload or spurt test) 100% capacity @ 150 psi net What are Pump Tests? pump pressure 70% capacity @ 200 psi net pump pressure 50% capacity @ 250 psi net pump pressure Net Pump Pressure (NEP) is What is Net Engine/Pump Pressure (NEP)? the measurement of the total work performed by the pump: a. To lift water into the pump (drafting) b. To discharge water from the pump NEP= Suction Side Work(drafting) + Discharge Side Work Suction Side Work(psi)= Lift How do you figure out Suction Side Work ? (ft)+Intake Hose FL(Friction Loss) (psi) Divided by 2.3 What is Fog nozzle pressure for Hand held nozzle and 100 psi Master Stream? Hand Held : 50 psi What is Smooth Bore nozzle pressures for Hand held Master Stream: 80 psi nozzle and Master Stream? "For every action there is an What is Newton's Third Law of motion pertaining to equal and opposite Nozzle Reaction? reaction" 1. Air Resistance What are the two variables that affect the reach of fire 2. Gravity streams? What angle does a stream get the greatest horizontal 30-34 degrees reach? What angle does a stream get the maximum effective 60-75 degrees vertical reach? What percent can head and tail winds affect the reach of 10% to 15% a stream? Q= GPM divided by 100 What is Q value for the Q formula Example: 200 GPM=2.00 Q=2 Add 5 psi for each floor of How do you Calculate Elevation? elevation (exclude 1st floor) Subtract 5 psi for each floor below grade add 25 psi What is the pressure for Standpipe system and siamese? What is the pressure for Gated Wye's and Siamese Add 10 psi appliances? Sprinkler Systems shall be What psi should be provided to Sprinkler Systems? maintained at 150 psi pump discharge pressures The Point at which the What is RED LINE? decision should be made to either add a line to help deliver the desire GPM or to use a larger sized line. Any time the GPM desired produces a friction loss of approximately 36 psi per 100 feet of hose, the "Red Line" has been reached. Maintain 20 psi for receiving In a Relay operation how much Pressure should relaying pumper pumper make sure the receiving pumper is getting? Closed Relay A relay directly between pumps  Evaluation consisting of written test accuracy of 70%, Cognitive from memory, without assistance. Cognitive Engine/Auxiliary coolers permits water from pump to Cooling Devices cool radiator water by means of a heat exchanger The difference between static and residual pressures as Drop found on the compound gauge. Two pumpers connected independently to the same fire Dual Pumping hydrant. Used primarily on portable pumps where the velocity of exhaust gases passing through a venturi creates a Exhaust Primers vacuum. Require High engine RPM and is not very efficient. Usually consists of several feet of copper tubing through which a liquid (oil or water) passes and excessive heat is Heat exchangers absorbed. Heat exchangers The Pressure found on a water distribution system during Normal Operating Pressure normal consumption demands. Oil from the engine crankcase is kept at an even Oil coolers temperature by cool water within the bottom of the radiator by means of an internal heat exchanger Permits water from the pump to directly enter the Radiator Fill Valves radiator.  The point at which the decisions should be made to either add a line to help deliver the desired GPM or to Red Line use a larger sized line. Any time the GPM desired produces a Friction Loss of approximately 36 psi/100 feet of hose, the "Red Line" has been reached. That part of the total Residual Pressure pressure that is not used to overcome friction or gravity while forcing water through fire hose, pipe, fittings, and adapters. To perform the objective without injury to self or to Safely others, or damage to fire department vehicles and equipment. Two Pumpers connect in series to a fire hydrant. One pumper connected to hydrant, with a second pumper Tandem Pumping obtaining its water supply from excess water obtained from the intake of the first. Makes use of the vacuum already present in the intake Vacuum Primers manifold of a gasoline engine. caused by tubercular corrosion or rust, caused by Incrustation chemical constituents of the water, caused by growth of biological or living organisms.  That part which receives the water from the pump station Distribution System and delivers it throughout the area; including hydrants, valves, elevated storage, reservoirs, and standpipes A water main arranged in a complete circuit so water will Looped Water Main be supplied to a given point from more than one direction. Also called a grid system A water main supplied from only one direction, usually Dead End Main resulting in poor flow. Water used for residential use as well as industrial, Domestic Supply commercial, public use and waste. Everything other than fire flow. Water required for fire protection. GPM and duration. Fire Flow Includes Domestic supply The loss of pressure resulting from water rubbing against and being agitated by the interior walls of fire hose, pipe, Friction Loss (FL) fittings, adapters, and nozzles. Friction Loss (FL) Large pipes with relatively wide spacing which convey Primary Feeders large quantities of water to various points of the system for local distribution to the smaller mains. The network of pipes of intermediate size which reinforce the grid within the various loops of the primary feeder Secondary Feeders system and aid the concentration of the required fire flow at any point.  A grid arrangement of smaller mains serving the Distributors individual fire hydrants and blocks of consumers. The network of mains that make up a distribution system. Grid It should consist of primary, secondary, and distributor mains. Positive Displacement One gallon in one gallon out (two basic types of positive Pumps displacement pumps) Pumps air and water Positive Displacement pumps (Advantages) Self Priming Collects the water and confines it to convert velocity to Casing pressure then directs the water to the discharge of the pump. The gradually increase in area of the water passage Volute (part of casing) allowing an increase in the amount of water going to discharge Stripping Edge (parts of Directs the water into the discharge piping. Prevents casing) water from swirling around the impeller. Standard for Fire Apparatus Driver/Operator Professional Qualifications: This Standard identifies the minimum job performance NFPA 1002 requirements (JPR's) for career and volunteer fire fighters and fire brigade personnel who drive and operate fire apparatus. NFPA 1902 Standard for Initial Attack Fire Apparatus NFPA 1903 Standard for Mobile Water Supply Apparatus Over Heating Three ways to damage a pump -Circulate tank water -Crack unused port & open Drain. Wear caused by debris & deposits in the water -Flush hydrant Cavitation Uses the vacuum in the intake manifold on a gasoline Vacuum Primer engine. Obsolete with diesel engines This Primer operates on the same principle as a foam eductor. The exhaust gases are diverted to a chamber where the velocity of the gases passing through a venturi Exhaust Primer creates a vacuum. Check valves prevent explosive gases from the exhaust system from entering the pump & keeps water from entering the exhaust system. Can be used when charging additional lines. Not capable of compensating for a decrease in pressure. Relief Valve Works best at draft when the difference between intake pressure and discharge pressure is the greatest. (MUST BE 90 PSI)  Works by regulating the power output of the engine (RPM) to maintain set pump discharge pressure. Pressure Governor When excess pressure builds up, a tube from discharge side of the pump transmits the rise to a governing device, which cuts back the throttle. Located on gated intakes (5" intake relief valve). This is to Bleeders bleed air off as a supply line is charged before the gated intake is opened. Differential 4 Basic Flowmeters Turbine Paddlewheel Spring Probe Loss of pressure created by the turbulence of water Friction Loss moving against the inferior walls of the hose or pipe.