rheostat
governor
exciter
capacitor
第1题：
The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the
A.prime mover speed
B.exciter output voltage
C.load on the alternator
D.number of poles
第2题：
You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the slow direction. This indicates that the frequency of the incoming machine is
A.higher than the bus frequency
B.lower than the bus frequency
C.file same as file bus frequency but out of phase with it
D.the same as the bus frequency, and the circuit breaker may be closed at nay pointer position
第3题：
A.higher than the bus equency
B.lower than the bus equency
C.the same as the bus frequency but out of phase with it
D.same as the bus frequency and the circuit breaker may be closed at
第4题：
frequency meter
voltage regulator
governor control
sychroscope switch
第5题：
Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）
第6题：
The frequency of an AC generator is controlled by the
A.rheostat
B.governor
C.exciter
D.capacitor
第7题：
The frequency of an AC generator is controlled by the ___.
A.rheostat
B.governor
C.exciter
D.capacitor
第8题：
A.prime mover speed
B.number of energized main motor poles
C.propulsion generator field strength
D.electric coupling field strength
第9题：
neutralize armature reaction
conduct electric current to an outside circuit
convert DC current to AC current
provide excitation to a DC generator
第10题：
rotor
stator
exciter
armature