單項選擇題

A fiber towing hawser is readied for service by（）.

A.spooling it on a winch cathead
B.coiling it in a counterclockwise direction on the fantail
C.faking it on deck in a fore and aft direction
D.spooling it on a reel lying on its side to prevent rolling

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單項選擇題

A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a（）.

A.diverter bit
B.hole reamer
C.core bit
D.conventional bit

單項選擇題

A drawbridge may use visual signals to acknowledge a vessel’s request to open the draw. Which signal indicates that the draw will NOT be opened immediately?（）

A.A flashing amber light
B.A fixed red light
C.A white flag raised and lowered vertically
D.A flashing white light

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A fiber towing hawser is readied for service by（）.

你可能感興趣的試題

A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a（）.

A drawbridge may use visual signals to acknowledge a vessel’s request to open the draw. Which signal indicates that the draw will NOT be opened immediately?（）

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