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
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
When does auxiliary burner of incinerator put into operation? ()Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
The shipboard oil pollution emergency plan will be invalid after ()
If separating effect is not good, which measure should be taken ()
() is not installed on the main switchboar.
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
To shut down a diesel engine after it exceeds the set maximum speed,which type of device listed should be used?()
Diesel engine air start system check valves are opened by ()
The main purpose of port State control is not to()
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()