單項(xiàng)選擇題

Under which of the listed conditions can the engine room retake the throttle control from the bridge（）.

A.Any time it is deemed necessary
B.Only with the masters permission
C.After a 10 minute delay to the input command
D.Only after the throttle has been placed in stop

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單項(xiàng)選擇題

Copper is often used as an electrical conductor because it （）.

A.has high resistance at low temperatures
B.has a highly polished surface
C.is able to pass current with little opposition
D.holds insulation together well

單項(xiàng)選擇題

A device which prints out a permanent record of the plant operating conditions is known as the （）.

A.analogger
B.bell logger
C.alarm logger
D.data logger