A.vibration
B.watertight integrity
C.speed droop
D.reactive power
您可能感兴趣的试卷
你可能感兴趣的试题
A.frequency meter
B.voltage regulator
C.governor control
D.sychroscope switch
A.rheostat
B.governor
C.exciter
D.capacitor
A.current in the circuit
B.voltage in the circuit
C.inductance in the circuit
D.resistance in the circuit
A.opposes any change in the applied voltage
B.opposes any change in the current flow through the circuit
C.aids any changes in the applied voltage
D.aids any changes in the current through the circuit
A.low loads necessitate frequent insulation cleaning
B.exceeding nameplate values shortens useful life
C.energy is wasted if full loading is not utilized
D.power factor correction methods are load dependent
A.The generator and bus transfer section
B.The 450 volt, 60 cycle, 3 phase bus
C.The 120 volt, 3 phase, 60 cycle bus
D.The 24 volt DC bus
A.increases as the square of the current
B.decreases as the square root of the current
C.remains the same, as it is independent of current flow
D.increases in direct proportion as the current
A.1 volt, the output changes 5 volts
B.5 volts, the output changes 1 volt
C.5 volts, the output changes 10 volts
D.10 volts, the output changes 5 volts
A.Circulating currents are kept to a minimum
B.Field excitation losses are kept to a minimum
C.Generator rotors will have a lesser tendency to hunt
D.Because a power factor increase will decrease kilowatt output
A.the voltage between two points in a circuit
B.circuit continuity
C.current flow in a circuit
D.total or partial circuit resistance
最新试题
Using a file without a handle may result in ()
The cetane rating of diesel fuel is an indication of the ()
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
The treatment of the fuel oils involves storage, heating, filtering and()
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
()are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
()connectors hold best if a wire is accidentally pulled or a connection becomes loose.
If two A.C.generators are to be operated in parallel, the load is distributed evenly by()
During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.
Cold weather starting of a diesel engine may be made easier by()