A.analogger
B.bell logger
C.alarm logger
D.data logger
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A.Polyphase
B.Wound-rotor
C.Induction
D.Synchronous
A.kilowatts
B.ampere-turns
C.kilowatt-volts
D.kilovolt-amperes
A.neutralize armature reaction
B.conduct electric current to an outside circuit
C.convert DC current to AC current
D.provide excitation to a DC generator
A.Open the machine on both ends so as to allow the air and dust to escape
B.Be certain that the circuit breaker is opened and tagged on the feeder panel
C.Be certain that the air is clean and as dry as possible
D.All of the above
A.higher than that of copper
B.lower than that of copper
C.equal to that of copper
D.reached when the conductor it is protecting becomes "white hot"
最新試題
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
The ISPS Code consists of a mandatory section-Part A, which shows（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
Which of the following items don’t belong to dock repair works?（）
Cold weather starting of a diesel engine may be made easier by（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
Using a file without a handle may result in （）