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單項選擇題

The alternating current generator supplying a load has a voltage drop resulted from the loadWhen the load has a lagging power factor this voltage drop （）.

A.is small
B.may be neglected
C.is useful
D.is considerable

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單項選擇題

After the trouble of the automatic control system has been completely eliminated, assistance is （） required.

A.remained
B.still
C.no longer
D.much mere

單項選擇題

（） is the actual value of the controlled condition.

A.Desired value
B.Set value
C.Measured value
D.Deviation