单项选择题
The voltage output of an AC generator is controlled by（）
A.varying the DC exciter voltage
B.varying the reluctance of the air gap
C.regulating the speed of the prime mover
D.shorting out part of the armature windings
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相关考题
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单项选择题
If two AC generators are operated in parallel, the load is distributed evenly by（）
A.a rheostat
B.a balancing coil
C.changing field excitation
D.adjusting the governor settings -
单项选择题
What would the amps be at 240 volts with an 8 ohm resistance?（）
A.32~5 amps
B.25 amps
C.1~5 amps
D.30 amps -
单项选择题
The actual rudder angle reading is（）
A.the rudder angle indicator reading
B.the desired rudder angle reading
C.the measured rudder angle reading
D.the intended rudder angle reading
