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Water Pump之中文名称为水泵.
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更多 “Water Pump之中文名称为水泵.” 相关考题
考题
Will we connect the motor with the fresh water pump? No, the pump is ( )_A.in good orderB.out of orderC.works well
考题
If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______.A.high steam pressure in the boilerB.abnormally high feed-water temperatureC.abnormally high boiler water temperatureD.steam demand exceeding feed pump capacity
考题
A centrifugal pump may fail to deliver water when first started if the ______.A.water seal pipe is pluggedB.pump is not primedC.seal ring is properly locatedD.impeller is flooded
考题
单选题The motor for the fresh water pump （）.A
need to repairB
need to be repairedC
needs to repairD
needs repairing
考题
单选题A water pump can not supply water after startingIt may be caused by （）.A
closed discharge valveB
broken pipe lineC
worn shaftD
both A and B
考题
单选题A centrifugal bilge pump requires priming （）.A
primarily to lubricate the shaft sealsB
due to the inability of this type of pump to lift water to cover the suction (eye) of the impellerC
to initially unload the pump by having its head pressure equal to discharge pressureD
in order to overcome the potential energy of water in the discharge line
考题
单选题The （）pump is usually used as the bilge feed pump to an oily water separator.A
turbineB
screwC
vaneD
ejector
考题
单选题Which pump installation would require an external source of sealing water?（）A
Main circulator pump jacket water coolingB
Salt water service pumpC
Auxiliary condensate pumpD
Bilge pump
考题
单选题One of the main functions of wearing rings, as used in a centrifugal pump, is to （）.A
maintain radial alignment between the pump impeller and casingB
absorb all impeller shaft end thrustC
prevent water leakage to the atmosphereD
prevent wear of the pump casing and/or impeller
考题
单选题Cooling water pumps driven by direct reversing diesel engines are usually of the straight impeller vane type pump with a concentric housing to（）A
facilitate bi-directional operationB
provide the greatest pump efficiencyC
prevent pump clogging from marine growthD
prevent cavitation at the pump outlet
考题
单选题The highest pressure in any closed diesel engine freshwater cooling system is at the （）.A
jacket water outletB
expansion tank inletC
heat exchanger inletD
cooling water pump outlet
考题
单选题In a diesel engine cooling system, the high temperature alarm contact maker will be activated on excessively high water discharge temperature from the （）A
raw water pump dischargeB
expansion tank outletC
cooling water heat exchangerD
outlet engine jacket water outlet
考题
单选题（）belongs to emergency power supplying equipments.A
Emergency fire pumpB
WindlassC
Main sea water pumpD
Fresh water pump
考题
单选题The most suitable pump for oily water separator feed duties is （）.A
a reciprocating pumpB
a vane pumpC
a centrifugal pumpD
a triple screw pump
考题
单选题In a vacuum boiling evaporator, the fresh water generated is pumped out by （）.A
a brine pumpB
an air ejectorC
a feed water pumpD
a condensate pump
考题
单选题The boiler feed pump discharge pressure is higher than the steam drum pressure to （）.A
ensure feed water flow into the boilerB
keep the steam drum pressure highC
prevent water hammer in the feed lineD
help the feed water flash to steam
考题
单选题To thoroughly pump out the bilges using a horizontally mounted centrifugal pump, the （）.A
pump must always be primedB
volute must impart a radial and rotary motion of the water suction sideC
connection must guide the liquid to the lantern ringsD
stuffing box should not be allowed any water leakage
考题
单选题Lube oil in the fresh water cooling system of a diesel engine may result from a （）A
camshaft seizureB
lube oil pump failureC
lube oil cooler failureD
lube oil pump overflow
考题
单选题Water accumulation in the cylinder of a secured engine is an indication that the （）A
soft water pump was not secured along with the engineB
jacket water thermostat has failedC
cylinder liner may be crackedD
raw water pump is over-speeding just prior to engine shutdown
考题
单选题If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe （）.A
high steam pressure in the boilerB
abnormally high feed water temperatureC
abnormally high boiler water temperatureD
steam demand exceeding feed pump capacity
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