A.save network cost
B.improve the reliability of supplying power to important load
C.prevent sequence reverse
D.increase the power factor of important load
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A.Ammeter and changeover switch
B.Power factor meter
C.Synchroscope
D.Reverse sequence relay
A.Control panel
B.Load panel
C.Paralleling panel
D.Busbar
A.Busbar
B.Load panel of main generator
C.Paralleling panel
D.Shore connection box
A.Control panel of main generator
B.Control panel of emergency generator
C.Paralleling panel
D.Load panel of main generator
A.Suez Canal searchlight, air compressor and air conditioning compressor
B.Air compressor, boiler blower and refrigeration plant
C.Boiler blower, Suez Canal searchlight and refrigeration plant
D.Suez canal searchlight, air compressor and boiler blower
A.be switched off by the duty officer
B.be switched on by the duty officer
C.be switched off automatically
D.be switched on automatically
A.connect to the busbar when the load increasing
B.supply power specially to charging panel
C.be put into operation during the ship arriving at or leaving port
D.ensure the power supply to critical equipment after the main switchboard out of power
A.Ammeter
B.Voltmeter
C.Wattmeter
D.Synchroscope
A.argo winch
B.Windlass
C.Steering gear
D.Air compressor
A.Emergency fire pump
B.Windlass
C.Main sea water pump
D.Fresh water pump
最新试题
The treatment of the fuel oils involves storage, heating, filtering and()
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()
()connectors hold best if a wire is accidentally pulled or a connection becomes loose.
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
Using a file without a handle may result in ()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
If separating effect is not good, which measure should be taken ()
The ISPS Code consists of a mandatory section-Part A, which shows()
() is not installed on the main switchboar.