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單項選擇題

What is normally used to pass a mooring line to a dock?（）

A.Distance line
B.Gantline
C.Heaving line
D.Tag line

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單項選擇題

What happens to the efficiency of an anchor when it is moved from sand to mud?（）

A.The efficiency increases
B.The efficiency decreases
C.The efficiency remains the same
D.The efficiency cannot be determined.

單項選擇題

What form of ice is of land origin?（）

A.Shuga
B.Floe
C.Spicule
D.Bergy bit

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