A.ohms
B.volts
C.amps
D.watts
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A.steel
B.aluminum
C.glass
D.copper
A.suspended by wire slings in one comer of the shop
B.wrapped in several layers of heavy paper or carboard
C.supported by flat wood blocks on the workbench
D.returned to the frame as soon as the bearings are removed
A.frequency
B.number of phases
C.phase rotation
D.All of the above
A.rotor
B.stator
C.exciter
D.armature
A.coulombs per second
B.revolutions per second
C.revolutions per minute
D.cycles per second
最新試題
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
（） is not installed on the main switchboar.
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The shipboard oil pollution emergency plan will be invalid after （）
The cetane rating of diesel fuel is an indication of the （）