A.half the resistance of the other resistor
B.a resistance equal to the other
C.at least ten times the resistance of the other
D.a partial short circuit
您可能感興趣的試卷
你可能感興趣的試題
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
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
最新試題
To proceed to the assistance of a ship in distress is()
The condensers located in various stages of a flash evaporator are cooled by()
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
Flame failure in an automatically fired auxiliary boiler can from a/an ()
Under MARPOL Code the ship to which it applies has to carry ()
During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.
If separating effect is not good, which measure should be taken ()
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()
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
To shut down a diesel engine after it exceeds the set maximum speed,which type of device listed should be used?()