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單項選擇題

（） is the actual value of the controlled condition.

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

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單項選擇題

Which of the following marine examples belongs to the open loop control system?（）

A.Accommodation heating system
B.Steering gear
C.Boiler control
D.Cargo control

單項選擇題

The operation of （） two alternators requires the voltages to be equal and also in phase.

A.paralleling
B.series-mounting
C.running
D.control