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單項(xiàng)選擇題

A drift lead indicates that the vessel is dragging anchor when the line is（）.

A.taut and leading forward
B.slack
C.leading out perpendicular to the centerline
D.leading under the hull

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單項(xiàng)選擇題

A deepwell pump is a type of（）.

A.screw pump
B.centrifugal pump
C.eductor
D.gear pump

單項(xiàng)選擇題

A bowline is used to（）.

A.join lines of equal size
B.form a temporary eye (loop) at the end of a line
C.be a stopper
D.keep a line from fraying