單項(xiàng)選擇題

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

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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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