單項(xiàng)選擇題

When the current flow through a copper wire increases, its （）

A.resistance will decrease
B.insulation will bum
C.temperature will increase
D.conductivity will increase

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When securing an AC generator, you should FIRST （）.

A.open the generator circuit breaker
B.switch the voltage regulator to “manual”
C.decrease the field excitation to minimum
D.reduce the load on the unit

單項(xiàng)選擇題

Prior to starting an AC generator prime mover, the voltage regulator cutout switch should be placed in the （）

A.manual position
B.bus neutral position
C.raise voltage position
D.transfer position