A.To cut out generators when they are no longer required
B.To cut in additional generators automatically as required
C.To divide the KW load equally between generators operating in parallel
D.To divide reactive current between generators operating in parallel
您可能感興趣的試卷
你可能感興趣的試題
A.capacitor in series with the load
B.inductor in series with the load
C.capacitor and inductor in series with the load
D.resistor in series with the load
A.the resistor next to the negative terminal
B.a short circuit
C.the resistor next to the positive terminal
D.an open circuit
A.amount of field excitation of the leading machine
B.load-speed characteristics of the governors
C.amount of field excitation to the lagging machine
D.type of alternator
A.voltage regulators
B.field rheostats
C.reverse power relays
D.prime mover governors
A.120°apart
B.160°apart
C.180°apart
D.360°apart
最新試題
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
()are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()
The main purpose of port State control is not to()
() is not installed on the main switchboar.
The treatment of the fuel oils involves storage, heating, filtering and()
If separating effect is not good, which measure should be taken ()
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 ()