A.Ammeter and changeover switch
B.Power factor meter
C.Synchroscope
D.Reverse sequence relay
您可能感興趣的試卷
你可能感興趣的試題
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
最新試題
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
The treatment of the fuel oils involves storage, heating, filtering and()
The additional mark ()in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
Diesel engine air start system check valves are opened by ()
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
Cold weather starting of a diesel engine may be made easier by()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
Using a file without a handle may result in ()
Flame failure in an automatically fired auxiliary boiler can from a/an ()