单项选择题
The most inefficient method of voltage reduction from the stand point of power loss, is a/an （）
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
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相关考题
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单项选择题
In a simple series circuit, the entire source voltage will drop across （）
A.the resistor next to the negative terminal
B.a short circuit
C.the resistor next to the positive terminal
D.an open circuit -
单项选择题
The division of kilowatt load between two paralleled alternators is determined by the （）
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 -
单项选择题
The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the （）.
A.voltage regulators
B.field rheostats
C.reverse power relays
D.prime mover governors
