Pump Operator Exam Prep – Flashcards
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Ground reservoirs are man-made impoundments that have the same characteristics of a pond or small lake. They are most commonly found at: A. Commercial properties B. Industrial properties C. Municipal water treatment facilities D. All of the above
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D
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Pump piping on fire apparatus must be able to withstand hydrostatic test pressures of: A. 100 psi B. 250 psi C. 500 psi D. 750 psi
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C
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NFPA 1901 brake test requires that new fire apparatus be brought to a complete stop from a speed of 20 mph in a distance not to exceed: A. 25 ft B. 35 ft C. 45 ft D. 55 ft
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B
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All fire apparatus with a rated pump capacity of 750 gallons or larger must be equipped with ___ 2 ½ " discharges: A. 2 B. 3 C. 4 D. None of the above
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A
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Because total vacuum is not possible in field operations, fire apparatus must have a maximum lift of: A. 25 ft B. 28 ft C. 31 ft D. 34 ft
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A
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A tank fill line should be provided from the discharge side of the pump. This allows: A.The tank to be filled without making additional connections when the pump is drafting. B.A means of replenishing water carried in the tank. C.For circulation of water through the pump to prevent overheating when no lines are flowing. D.All of the above
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D
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Which of the following is NOT true concerning centrifugal pumps? A.Centrifugal pumps are the simplest of all fire apparatus pumps B.The amount of water being discharged has an influence on the pump's discharge pressure. C.Speed at which the impeller is turning has an influence on the pump's discharge pressure. D.Pressure of water when entering the pump from a pressurized source has an influence on the pump's discharge pressure.
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A
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NFPA 1901 specifies that the minimum pump capacity for pump design is: A. 250 GPM B. 500 GPM C. 750 GPM D. 1000 GPM
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C
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Apparatus service tests are conducted at least: A. Annually B. Quarterly C. Semi-Annually D. As often as local operating procedures dictate.
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C
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The items that the driver/operator is responsible for should be dictated by: A. Driver/operator B. Company Officer C. Dept. SOP D. None of the above
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C
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When conducting a pumper service test, the atmospheric air temperature should not be above: A. 80 deg F B. 90 deg F C. 100 deg F D. None of the above
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C
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Which of the following is FALSE? A. Apparatus cleanliness is only for maintaining good public relations B. Fire apparatus should be kept clean underneath as well as on the top. C. Keeping the apparatus body clean also helps promote a longer vehicle life. D. Over-cleaning can have negative effects.
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A
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On apparatus with air brakes, NFPA requires the air pressure to build to a sufficient level to allow vehicle operations within ___ seconds of starting. A. 10 B. 20 C. 40 D. 60
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D
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Which of the following is FALSE concerning washing the exterior of apparatus? A. During the first 6 months after an apparatus is received, wash with cold water. B. During the first 6 months after an apparatus is received, wash with hot water. C. Never remove dust or grit by dry rubbing. D. Try to wash mud and dirt before they dry.
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B
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Elevating water devices typically range in height from ___ to ___ feet? A. 50-65 B. 50-75 C. 50-85 D. 50-100
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B
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Rescue vehicles commonly have generators with capacities up to: A. 15,000 watts B. 24,000 watts C. 36,000 watts D. 50,000 watts
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D
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When pumping into a fire department connection to a sprinkler system, the water passes through a valve which prevents water flow from the sprinkler system backing into the fire dept. connection. This valve is called a A. Alarm B. Check C. OS & Y D. Main Drain
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B
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When using 2 ½ or 3 inch hose lines to supply the pumper directly off hydrant pressure, it is recommended that the lines be no longer than: A. 250 ft B. 300 ft C. 350 ft D. 400 ft
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B
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Intake hose sections are commonly 10 to ___ ft long. A. 20 B. 30 C. 40 D. 50
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D
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Ideally, the command vehicle should be positioned ___ of the building. A. In the front B. In the back C. On the side D. On the corner
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D
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Steering wheel play should be no more than ___ degrees in either direction. A. 10 B. 20 C. 30 D. 40
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A
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The most common type apparatus fire pump found in the fire service today is: A. Positive displacement pump B. Midship pump C. Piston pump D. Rotary pump
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B
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Engine companies that carry large quantities of ground ladders, but do not have a main aerial device are called: A. Quint B. Quad C. Midipumper D. None of the above
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B
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Apparatus equipped with a fire pump whose rated capacity is less than 750 GPM are required to undergo the same certification test as a pumper over 750 GPM with the exception of: A. Pumping test B. Pumping engine overload test C. Vacuum test D. Water tank to pump flow test
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B
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When conducting a vacuum test, run the priming device until the test gauge shows 22 inches of mercury developed. Reduce the amount of mercury developed 1 inch for each ___ ft of altitude A. 500 B. 750 C. 1000 D. 1200
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C
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NFPA 1901 states that piping should be sized so that pumpers with a capacity of 500 GPM or less should be capable of flowing ___ GPM from their booster tank. A. 100 B. 250 C. 500 D. 750
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B
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When supplying a sprinkler system, it is a general rule of thumb one 1000 GPM rated pumper should supply the FDC for every ___ sprinklers that are estimated to be flowing. A. 20 B. 30 C. 40 D. 50
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D
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When drafting, the maximum theoretical lift is: A. 22 ft B. 29.5 ft C. 33.9 ft D. 36.7 ft
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C
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Apparatus with air brakes are to be equipped with an air pressure protection valve that prevents air horns from being operated when the air pressure in the air reservoir drops below: A. 60 psi B. 80 psi C. 100 psi D. 110 psi
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B
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Which of the following is FALSE as it pertains to rear mounted pumps: A. Rear mounted pumps provide a more even weight distribution on the apparatus chassis B. Rear mounted pumps give the driver/operator more protection from traffic exposure C. Rear mounted pumps allow the apparatus to have more compartment space D. Rear mounted pumps are becoming increasingly popular for fire depts.
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B
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According to NFPA 1901, a mobile water supply apparatus must carry at least: A. 750 gallons B. 1000 gallons C. 1250 gallons D. 1500 gallons
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B
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Portable generators are designed to provide power with ___ watts of power being the largest: A. 1000 B. 5000 C. 8000 D. 10000
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B
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Which statement below is false? A. Industrial, municipal, and airport fire depts. Commonly have pumpers capable of discharging firefighting foam on class B fires B. Industrial foam pumpers are built according to NFPA 11C only C. Industrial, municipal, and airport fire depts. Commonly have pumpers capable of discharging firefighting foam on ordinary combustible fires D. Industrial foam pumpers are built according to NFPA 11C and NFPA 1901
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B
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When positioning apparatus for protecting a structure threatened by a wild land fire, which is INCORRECT? A. Park on roadway B. Park on the leeward side of the structure C. Keep cab doors closed and windows rolled up D. Place the apparatus air conditioning (if equipped) in recirculation mode
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A
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Pumps are hydrostatically tested at 250 psi for ___ minutes. A. 1 B. 2 C. 3 D. None of the above
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C
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The section of the pump that gradually increases in cross-sectional area as it nears the discharge outlet of the pump is the: A. Bourdon tube B. Circulator valve C. Volute D. Flow meter
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D
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When more than one emergency vehicle is responding along the same route, units should travel at least ___ to ___ feet apart. A. 200-300 B. 300-500 C. 500-700 D. 700-800
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B
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The conventional power take off unit limits the capacity of the pump to about: A. 250 GPM B. 500 GPM C. 750 GPM D. 1000 GPM
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B
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A large percentage of collisions occur while: A. Leaving quarters B. Railroad crossings C. Backing D. There are adverse weather conditions
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C
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The most common large diameter hose is ___ and ___ inches: A. 3 and 4 B. 4 and 5 C. 5 and 6 D. 10 and 12
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B
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Midipumpers are built on chassis usually over ___ pounds gross vehicle weight: A. 12000 B. 16000 C. 18000 D. 21000
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A
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Which statement below is INCORRECT? A. The first element in learning to drive safely is to develop a safety conscious attitude B. It is critically important that the driver/operator remain calm and drive in a safe manner C. If a firefighter rides the tailboard, he must use a safety bar D. The area in which hose loading is being performed must be closed to other vehicular traffic
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C
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Inverters are generally capable of providing approximately ___ watts of electric A. 700 B. 850 C. 1250 D. 1500
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D
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A tank fill line should be provided from the discharge side of the pump. This allows for: A. The tank to be filled without making any additional connections when the pump is being supplied by an external source B. A means of replenishing the water carried in the tank C. The circulation of water through the pump to prevent overheating when no lines are flowing D. All of the above
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D
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Concerning the foam proportioning equipment test, which of the following is true? A. Annual testing is required B. Semi-annual testing is required C. Quarterly testing is required D. No time frame for testing is required, however, the pump operator must be able to perform the test
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D
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To facilitate the proper placement of pumping and aerial apparatus, you may decide to use the "inside/outside" method of apparatus placement. If the building is less than ___ stories tall, engine companies should park on the side closest to the building and the aerials park on the outside. A. 3 B. 4 C. 5 D. 6
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C
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Most intake and discharge lines from the pump are controlled by valves. The most common type of valve is the ___ valve. A. Ball B. Clapper C. Gate D. None of the above
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A
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A fire apparatus pump is able to deliver ___ % of its capacity at 15 ft lift. A. 100 B. 70 C. 50 D. 30
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B
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Apparatus with a water tank less than 1000 gallons in size must have a tank fill line at least ___ inches in diameter. A. 1 B. 2 C. 2 ½ D. 3
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A
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Which statement below is FALSE? A. Driver/operator of fire apparatus are regulated by federal laws, state or provincial motor vehicle codes, city ordinances, NFPA standards and departmental policies. B. Most driving regulations pertain to dry, clear roads during daylight conditions. C. Emergency vehicles are generally exempt from laws that require vehicles to stop for school buses that are flashing signal lights. D. A driver/operator who does not obey state laws or dept. driving regulations can be subject to civil and criminal prosecution if apparatus is involved in a collision.
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C
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What is the pump discharge pressure when supplying a ground monitor using a 500 GPM fog nozzle with 100 psi nozzle pressure, supplied with two 2 ½ inch hose lines each 250 ft in length. (use long formula) A. 130.7 psi B. 162.5 psi C. 222.7 psi D. 262.5 psi
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B
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___ GPM to ___ GPM is the maximum flow recommended for one line of 2 ½ inch hose. A. 150-200 B. 200-250 C. 250-300 D. 300-350
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C
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On solid stream nozzles, ___ lbs. of nozzle pressure is considered to be standard on handlines, while ___ lbs of nozzle pressure is considered standard on masterstreams. A. 40-80 B. 40-100 C. 50-80 D. 50-100
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C
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Which of the following is a CORRECT statement? A. Positive pressures are measured in pounds per square inch. B. Negative pressures are measured in inches of mercury C. Any pressure less than atmospheric pressure is referred to as a vaccum D. All of the above are correct statements
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D
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If when a pumper is connected to a hydrant, the first line is opened, and there is a drop in residual pressure of 20%, this would indicate that the hydrant should be able to supply___ A. One half the amount of water already flowing B. No additional water C. Two times the amount of water (one additional setup) D. Three times the amount of water (two additional setups)
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C
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One cubic foot of water contains ___ cubic inches of water A. 231 B. 424 C. 835 D. 1728
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D
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What is the square root of 121? A. 10 B. 11 C. 12 D. 13
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B
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Find the desired pump pressure when supplying a 2 ½" hose line with a one inch tip with 50 psi nozzle pressure, laid up to the third floor. (the supply line is 250 ft long) (use rule of thumb) A. 60 psi B. 70 psi C. 80 psi D. 85 psi
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C
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In most cases, building and fire codes require wet systems with booster fire pumps built in for structures over how many floors? A. 5 B. 10 C. 12 D. 15
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A
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When using a centrifugal pump to supply a hose line and the nozzle is shut off quickly, the pressure wave travels back and ends at the ___ A. Handline B. Hydrant C. Pumper D. Water main
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D
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At a fire, 6 sprinkler heads have opened. They are operating at a 30 psi pressure. What is the total discharge? A. 45 GPM B. 125 GPM C. 180 GPM D. 270 GPM
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C
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In fire hydraulics, ___ is that part of the total pressure that is used to overcome friction while forcing water through a fire hose A. Aerating B. Cavitation C. Friction loss D. Slippage
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C
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Ordinary hose sinuosity (zig-zagging) will add an additional ___% friction loss. A. 2 B. 6 C. 10 D. 12
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B
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A pressure of one pound per square inch will raise a column of water how many feet? A. 1.341 B. 2.304 C. 3.561 D. 4.221
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B
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f a pumper is connected to a hydrant 200 feet away from a standpipe Siamese and two 1 ½ inch handlines are operating on the 8th floor, the fire pump operator should maintain ___ psi engine pressure A. 150 B. 160 C. 190 D. 200
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A
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Back pressure is also known as ___ A. Nozzle reaction B. Head pressure C. Static pressure D. Atmospheric pressure
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B
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If 250 GPM is flowing through a hose line and the pressure is increased while the nozzle opening is reduced so that 250 GPM remains flowing, the friction loss will: A. Remain the same B. Increase C. Decrease D. None of the above
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B
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"There shall be an OS&Y valve located between the fire department Siamese connection and the standpipe riser" "There is a one way check valve positioned in the system to keep possible contaminated water from entering the main system" A. Both statements are true B. The first statement is true, the second statement is false C. Both statements are false D. The first statement is false, the second statement is true
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D
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If the discharge from a 1 ¼ inch tip is 300 GPM, what most nearly is the nozzle pressure? A. 32 psi B. 42 psi C. 52 psi D. 62 psi
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B
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The maximum theoretical height to which it is possible to lift water by suction at sea level is ___ feet. A. 13.5 B. 33.9 C. 25 D. 62.5
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C
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There are three containers filled with water, the first container is one square inch at the base and three feet high, the second container is three square inches at the base and is one foot high, and the third container is nine square inches at the base and four inches high. Which container has the heaviest total weight of water A. The first container B. The second container C. The third container D. All three containers have the same total weight of water
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D
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Mercury is how many times as heavy as water? A. 2 B. 5 C. 10 D. 13.6
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D
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What is the pump discharge pressure with a layout using 200 feet of 2 ½ inch hose wyed into two 1 ½ inch hose lines, each 100 feet long with fog nozzles discharging 100 GPM at 100 psi nozzle pressure. (use rule of thumb) A. 148 psi B. 152 psi C. 172 psi D. 206 psi
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B
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What will be the loss due to friction in a single line of 3" hose with 2 ½" couplings, 400 ft in length carrying 300 gallons of water per minute? A. 8 psi B. 21 psi C. 34 psi D. 84 psi
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C
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Rounding off to the nearest hundredths, determine the area of a circle whose diameter is 10 inches. A. 78.54 sq inches B. 153.93 sq inches C. 157.08 sq inches D. 785.40 sq inches
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A
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When pumping in relay, the supplying pumper should supply ___ pounds plus friction loss, but in no case should engine pressure exceed ___ psi A. 10-250 B. 10-300 C. 20-250 D. 20-300
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C
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One gallon of water contains how many cubic inches? A. 144 B. 231 C. 835 D. 926
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B
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For a given velocity of flow, the friction loss per hose is approximately the same no matter what the pressure of water may be. Friction loss is determined by the speed or velocity of the water through the fire hose A. The first statement is true, the second is false B. The second statement is true, the first is false C. Both are false D. Both are true
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C
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Which of the following is a true statement? A. Flow pressure is the pressure at a discharge opening while water is flowing B. Atmospheric pressure is the pressure remaining at the source while water is flowing C. Static pressure is the weight of air surrounding us and at sea level is 14.7 psi D. Residual pressure is the pressure of water when motionless or no hindering forces are affecting it as long as it is not moving
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A
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When the compound gauge reads 15 inches of vacuum, to what height will the water rise in the suction hose? A. 11 ft B. 13 ft C. 17 ft D. 21 ft
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C
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In the same size hose, friction loss varies approximately ____ A. With the square of the velocity of flow B. Inversely as the square of the velocity of flow C. With the velocity of flow D. Inversely as the velocity of flow
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B
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When the nozzle is higher than the pump; which of the following formulas apply? A. EP=NP-FL-BP B. EP=NP+FL+BP C. EP=NP+FL-BP D. EP=NP-FL+BP
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B
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If 50 psi nozzle pressure is being supplied to a 1 1/8" tip on a 2 ½" handline, what is the nozzle reaction? A. 85 lbs B. 90 lbs C. 95 lbs D. 100 lbs
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D
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If a circular storage tank 12 ft in diameter and 15 feet high is ¾ full with water and water is then removed from the tank at a rate of 500 GPM, approximately how many minutes would it take before the tank is completely empty? A. 2 B. 9 C. 15 D. 19
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D
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Engine one is supplying engine two with a single hoseline of 2 ½" hose 600 ft in length. Engine two is supplying two 2 ½" handlines, each 150 ft long, using 7/8" tips with 50 psi nozzle pressure and discharging 150 GPM. What is the pump discharge pressure from engine one? A. 146 psi B. 156 psi C. 186 psi D. 206 psi
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A
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Sprinkler and standpipe systems may be identified by: A. Color code B. Circular or rectangular plates C. Either A or B D. None of the above
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C
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Using the rule of thumb, what is the friction loss in a single 2 ½" hose line 300 ft long with a 1" tip at 50 psi? A. 30 psi B. 35 psi C. 80 psi D. 85 psi
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A
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What is the friction loss in 450 ft of 2 ½" hose when flowing 250 GPM? A. 39 psi B. 56 psi C. 67 psi D. 81 psi
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B
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What is the nozzle reaction in pounds from a 1" nozzle discharging a stream at 80 psi nozzle pressure? A. 100 lbs B. 120 lbs C. 240 lbs D. 270 lbs
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B
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A 2 ½" hose with no nozzle attached (open butt) is flowing at a pressure of 25 psi, how many GPM is being discharged from the opening? A. 375 B. 587 C. 835 D. 937
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C
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When the main shut off valve on a sprinkler system is closed, the water pumped into the sprinkler Siamese will ___ A. Bypass the valve and reach the heads B. Discharge out of the system drain C. Put undue pressure on the system, with possible rupture of pipes D. Not circulate causing the apparatus pump to overheat
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A
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For standpipe evolutions, if the pumper is more than 100 feet from the fire department Siamese connection on a building, an additional ___ psi must be added for each 100 ft of additional hose A. 10 B. 15 C. 20 D. 25
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A
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Pressure is simply force per unit area and is expressed in: A. Pounds per square foot B. Pounds per square inch
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B
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There is a limit to which the speed a stream of water can travel through a hoseline. If the speed is increased beyond these limits, the friction loss becomes so great that the entire stream is agitated by resistance, this agitation causes a point of turbulence called____ A. Pressure resistance limit B. Water hammer C. Cavitation D. Critical velocity
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D
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When a sprinkler system is being charged, a reading of how many pounds of pressure should be maintained on the discharge gauge? A. 100 B. 120 C. 150 D. 170
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C
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What is the discharge from 10 sprinkler heads in 30 minutes if they are operating at 30 psi? A. 4800 gallons B. 6000 gallons C. 7500 gallons D. 9000 gallons
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D
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What is the discharge in GPM from a 1 ¼" tip with 50 psi nozzle pressure? A. 235 B. 250 C. 299 D. 327
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D
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Standpipe systems are rarely built to withstand more than ___ psi? A. 225 B. 250 C. 275 D. 300
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A
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What is the symbol for inches of mercury? A. IM B. IN C. HG D. M
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C
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How many pounds does one gallon of fresh water weigh? A. .434 B. 7.481 C. 8.35 D. 10.5
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C
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100% of rated capacity at
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150 PSI
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70% of rated capacity at
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200 PSI
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50 % of rated capacity at
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250 PSI
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Strainer must be submerged
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24 inches
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Turning the wheel __ degree angle make it easier to reposition a apparatus for pump operations?
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45 degrees
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Master Stream flows at
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300GPM
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Friction loss for 3 inch from 2 ½ inch is __ percent?
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50%
