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單項選擇題

A sound signal of seven short blasts and one long blast given with the vessel’s sound system is（）.

A.Safety alarm
B.Distress alarm
C.Fire drill alarm
D.General emergency alarm

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單項選擇題

PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）.

A.Distress
B.Safety
C.All clear
D.Urgency

單項選擇題

Is extra power available（）emergency while maneuvering?

A.for
B.in
C.during
D.to

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