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單項選擇題

Moving of an anchor over the sea bottom to control the movement of the vessel defines（）.

A.dredging ( of anchor )
B.dragging ( of anchor )
C.weighing anchor
D.walking out anchor

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單項選擇題

Pan-Pan is to be used to announce（）.

A.a distress message
B.an urgency message
C.a safety message
D.a message of SMCP

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

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