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单选题
The discharge side of every fire pump must be equipped with a（）.
A
gate valve
B
pressure gauge
C
check valve
D
strainer
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While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?A.Make an entry in the official logbookB.Open the master control valves on the fixed CO2 systemC.Start the fire pump and check discharge pressureD.Secure auxiliary condenser overboard discharge
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In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.A.invert the CO2 extinguisherB.squeeze the two trigger handles togetherC.remove the locking pinD.open the discharge valve
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单选题What is the function of wearing rings found on some centrifugal pumps? （）A
Absorb erosion of high velocity discharge streamB
Seal pump shaft against entry of airC
Isolate the outlet side from the inlet sideD
Dampen the turbulent discharge flow
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单选题The discharge from a carbon dioxide fire extinguisher should be directed（）.A
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at the center of the flamesC
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单选题What is a function of the wearing rings used in most centrifugal pumps?（）A
Absorb erosion of high velocity discharge streamB
Seal pump shaft against entry of airC
Isolate the discharge side from the suction sideD
Dampen the turbulent discharge flow
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单选题Which method should be used to warm up the pump turbines prior to discharge（）.A
Lock the turbine rotor and slowly bleed in steam until operating temperature is reachedB
Run the pump at high speed with the discharge valves closedC
Run the turbine at slow speed with the pump disconnectedD
Shut the discharge valve and run the pump at slow speed
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单选题Before operating a non-oceangoing ship greater than 100 gross tons it must have a fixed piping system to discharge oily mixtures ashore. This system must include（）.A
approved oily-water separating equipmentB
a fixed or portable containment system at the shore connectionC
a spare pump in case the main pump is inoperativeD
at least one outlet accessible from the weather deck
考题
单选题The static suction lift of a pump is the difference in elevation between the （）.A
centerline of the pump and the level of the liquid in the suction well when the source of liquid is below the pumpB
centerline of the pump and the suction liquid level when the source of liquid is above the pumpC
centerline of the pump and the level of the discharge liquidD
liquid levels of the suction and discharge
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单选题Most pump manufacturers recommended that the discharge piping for centrifugal pumps be （）.A
one size larger than the pump discharge nozzleB
the same size as the pump discharge nozzleC
one size smaller than the pump discharge nozzleD
installed with a short radius elbow at the pump
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单选题What does the term head mean when applied to a fire pump?（）A
Length of the discharge pipeB
Height of the discharge pipeC
Difference between the discharge and suction pressuresD
Sum of discharge and suction pressures
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单选题While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take?（）A
Make an entry in the official logbookB
Open the master control valves on the fixed CO2 systemC
Start the fire pump and check discharge pressureD
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单选题Each fire hydrant serving machinery spaces containing oil fired boilers，internal combustion machinery，or oil fuel units must be equipped with a（）.A
fireman's outfitB
low-velocity spray applicatorC
marine strainerD
pick axe
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单选题To operate a centrifugal fire pump at reduced capacity, you should （）.A
readjust the relief valveB
throttle the suction lineC
throttle the discharge valveD
open the priming line
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单选题A relief valve for a cargo pump is generally installed（）.A
after the discharge valveB
between the pump and discharge valveC
after the suction valveD
between the pump and suction valve
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单选题A vessel in ocean service that does not have an approved means of processing oily bilge slops or oily ballast must have（）.A
a fixed piping system for ballast discharge to a reception facilityB
a discharge outlet for the ballast system on each side of the weather deckC
one portable adapter for a shore connection to the ballast lineD
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单选题To maintain design discharge pressure from a centrifugal pump, the design clearance must be maintained between the （）.A
shaft and impellerB
motor and pump shaftC
casing and impeller wearing ringsD
lantern ring and impeller
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单选题The valve on the discharge side of a cargo pump on a tanker will usually be a（）.A
butterfly valveB
spectacle valveC
check valveD
globe valve
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单选题Each fire pump on a ship must have a pressure gauge located at（）.A
the pump dischargeB
the manifold connectionC
each fire station dischargeD
the pump station
考题
单选题The lubrication to the cylinders affected by the fire must be （）to prevent seizure and all scavenge drains must be （）to prevent the discharge of sparks and burning oil from the drains into the engine room.A
decreased；openedB
decreased；shutC
increased；openedD
increased；shut
考题
单选题What is the purpose of a relief valve?（）A
to fill 2 tanks at the same timeB
to use pump at a higher pressureC
to return liquid to suction side if discharge valve is closedD
All of the above are true
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单选题The valve on the discharge side of a cargo pump on a tank vessel will usually be a（）.A
butterfly valveB
spectacle valveC
check valveD
globe valve
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单选题If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.A
a low load on the unitB
a clogged pump suction strainerC
a blockage in the line between the pump and hydraulic motorD
the hydraulic motor turning too fast
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单选题In order to discharge a C02 portable fire extinguisher , the operator must first（）.A
invert the CO extinguisherB
squeeze the two trigger handles togetherC
remove the locking pinD
open the discharge valve
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