A.magnetic amplifier
B.ship’s service alternator
C.three-wire DC generator
D.saturable core reactor
您可能感興趣的試卷
你可能感興趣的試題
A.draw a one line diagram of the circuitry
B.test all fuses and measure the line voltage
C.take megger readings
D.insulate the apparatus from ground
A.melts and must be replaced
B.is enclosed in a tube of insulating material with metal ferrules at each end
C.gives no visual indication of having opened the circuit
D.trips to break the circuit and may be reset
A.brushes on a commutator
B.brushes on slip rings
C.slip rings on a commutator
D.direct connections from the stator
A.heat-resisting acrylic
B.heat-resisting aluminum
C.insulating varnish
D.insulating white lead
A.hydrogen chloride
B.calcium chloride
C.sulfuric acid
D.muriatic acid
最新試題
To proceed to the assistance of a ship in distress is（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
If separating effect is not good, which measure should be taken （）
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（）
（） is not installed on the main switchboar.
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
The cetane rating of diesel fuel is an indication of the （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）