A.Fan
B.Pump
C.Winch
D.Machine tool
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A.number of turns of wire in the armature coil
B.number of magnetic poles
C.strength of the magnets used
D.output voltage
A.diode
B.transformer
C.transistor
D.rheostat
A.Transducer
B.Reducer
C.Transformer
D.Rectifier
A.magnetic shield
B.electromagnet
C.piezoelectric device
D.electromagnetic domain
A.Sealed motors
B.Drip proof motors
C.Enclosed motors
D.Watertight motors
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
The treatment of the fuel oils involves storage, heating, filtering and（）
The shipboard oil pollution emergency plan will be invalid after （）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
（） is not installed on the main switchboar.
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
To proceed to the assistance of a ship in distress is（）
Cold weather starting of a diesel engine may be made easier by（）