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while conducting a pump capacity test, if the net pump discharge pressure is correct but the nozzle flow is too high, the - the discharge gate must be closed further When using hose lines above ground, the usual pressure calculation is to add _____ psi for each story of the building below the fi...

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  • August 11, 2024
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  • 2024/2025
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FAE
while conducting a pump capacity test, if the net pump discharge pressure is correct but the nozzle flow
is too high, the - the discharge gate must be closed further



When using hose lines above ground, the usual pressure calculation is to add _____ psi for each story of
the building below the fire floor. - 5



You should switch from pressure to volume mode when - more than half of the rated capacity of
the pump will be required



To calculate friction loss in 2 1/2" fire hose when the flow is near 100 gpm, which of the following
formulas should be used? - FL=cq(2)L



The pressure remaining once water has begun flowing is known as _____ pressure. - residual



When the flow through a hose line increases from 100 gpm to 400 gpm, the friction loss increases _____
times. - 16



the recommended pressure for a standard fog nozzle is - 100 PSI



The foam application technique that directs the foam stream on the ground near the front edge of a
burning liquid pool or spill is the: - roll on method



Master stream nozzles are: - Either solid of fog streams



_________ consist of small return (bypass) water line connected from the discharge side of the pump
back to the intake side of the pump - around the pump proportioners



which type of nozzle is very effective when fighting a fire in a basement or cellar - distributors
nozzle

, if the inlet pressure to the eductor is too high - foam may not be inducted



when lowering a barrel strainer into the water, it should have _____ inches of water in all directions -
24



an increase in vacuum while drafting may indicate - a clogged strainer



hose that is laid from the fire to the hydrant is considered a - reverse lay



a straight stream is considered a - pattern of an adjustable fog nozzle



pump discharge pressure is equal to - Nozzle pressure + friction loss



as flow increases, pressure will ___________ provided pump seal remains constant - increase



the primary function of the fire department pumper is to - provide water at an adequate pressure
for fire streams



Once the power take off has been properly activated and the pump is engaged, the vehicle speedometer
should show a speed of: - slightly above 0 mph

The speedometer on an apparatus is primarily used to show speed but may also indicate - the
pump is turning



the maximum height water can be drafted is approximately __________ feet, as opposed to the
theoretical lift of 33.8 feet - 25 feet

when using foam to extinguish a fire, the separating method - creates a barrier between the fuel
and the fire

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