Pumper

NFPA 1901, Standard for Automotive Fire Apparatus, contains the requirements of pumper design. correct answer: The standard specifies a minimum pump capacity of 750 gpm and a water tank with a capacity of at least 300 gallons. Pump capacities larger than 750 gpm increase in increments of 250 gpm with most municipal fire departments operating pumpers of 2000 gpm or less. There are, however, many pumpers in service with industrial fire departments that exceed 2000 gpm. Both municipal and indus...

A priming device works by: A. centripetal force B. creating a partial vacuum C. centrifugal force D. creating compression within a rotating chamber correct answer: CREATING a partial VACUUM The purpose of the gauge and flowmeter test is to: A. ensure that the fire apparatus is running at the same speed it was rated for when it was new B. check the overall condition of the engine C. check that the given discharge information is accurate when the pump is in opera...

One of the greatest dangers involved in a tandem pumping operation is to correct answer: Exceed the rated pressure of the hose or pump Hard suction hoses generally have a diameter of beween correct answer: 4 and 6 inches Major advantage of medium diameter hoses is their correct answer: Flexibility of use as an attack, relay, or supply line The design of any relay pumping operation is driven mainly by the correct answer: desired flow at the fire scene 3 considerations for determin...

water distribution systems OS&Y valves use what to control the valve. correct answer: threaded system principles of pressure say that pressure on an amount of water act on a surface in what way correct answer: perpendicular to the surface it acts on fog nozzles aerate what kinda foam correct answer: class A 2 ways to find discharge pressure with sprinklers correct answer: pre incident plan and dept connection plate how much energy is needed to raise 1 lb of water from 100 to 212 ...

What are the rules for positioning a pumper correct answer: There are no set rules Primary function of a pumper is to... correct answer: Provide water for firefighting operations Determining the proper position for the attack pumper begins... correct answer: With sizing up the location. Make every effort to follow SOP's for first arrival positioning of the Pumper. What should you do if safety requires you to go against it? correct answer: Alert incoming units What has a major im...

A fire apparatus should be started with all electrical switches in the off position in order to correct answer: Start the engine without load Fire apparatus inverters correct answer: Limited to less than 1500 watts Overall lighting for an incident scene is most often provided by correct answer: Fixed lights Four pre service tests correct answer: Road tests, independent pump certification test, hydrostatic tests, purchase acceptance tests Engine performance correct answer: Fuel, ...

Testing a flow meter consist of: correct answer: Connecting a hose line equipped with a solid stream nozzle to each discharge being tested. When conducting a service test using a static water source, you must have____ ft of hard intake hose for drafting? correct answer: 20 What are 3 things that must have occurred prior to raising the cab? correct answer: •All cab doors have been securely closed. •All loose items in the cab have been secured. •Adequate front and overhead clearan...

The lowest acceptable fuel gauge reading on a fire apparatus during inspection is: correct answer: least 3/4-full. Identify TWO true statements about inverters. correct answer: Inverters are quiet as compared to generators Inverters output is usually limited to less than 1,500 watts. Match each service test with the correct information. correct answer: Vacuum test - checks for leaks in the primary device and pump Pump capacity test - checks the overall condotions of the engine Pressur...

the rescue tool supply system equivalent of a junction box is called? correct answer: a manifold the purchase acceptance test on a new fire app should focus on? correct answer: bid specifications allowing the fire app engine to idle over an extended periods of time can lead to all of the following except? correct answer: engine fatigue steps to passing a straight section of road/ hwy correct answer: - maintain speed - check for traffic - check the side streets - check the side v...