FAE questions and Answers Latest Update Fully Solved 100%

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 nozzleif 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 fireare controlled by monitoring the water flow and controlling the speed of a positive displacement foam concentrate pump - variable flow, variable rate direct injection systems The amount of work that pump must do to produce a fire stream is called ______ pressure. - pump discharge which foam has a surfactant added that makes it more fluid - flueroprotein the purpose of the ________ is to provide circulating feed from several mains - grid system When relay pumping, if the intake pressure drops below 20 psi: - there is a danger of cativation in-line relay valves allow for - Late-arriving pumper to hook up without interrupting operations. the flow from a 1 inch nozzle tip with a nozzle pressure of 50 PSI approximately _______ gpm - 210 the process that causes foam concentrate to move through an in-line foam eductor and into the water stream is called the ________ effect - venturi