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
最新試題
Cold weather starting of a diesel engine may be made easier by（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Under MARPOL Code the ship to which it applies has to carry （）
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.
The ISPS Code consists of a mandatory section-Part A, which shows（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The treatment of the fuel oils involves storage, heating, filtering and（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）