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
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?（）
The shipboard oil pollution emergency plan will be invalid after （）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
The treatment of the fuel oils involves storage, heating, filtering and（）
To proceed to the assistance of a ship in distress is（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
The main purpose of port State control is not to（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）