单项选择题

It is easier to dock a right-hand，single-screw vessel（）.

A.starboard side to the wharf
B.either side to the wharf
C.port side to the wharf
D.stern to the wharf

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单项选择题

In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn（）.

A.to starboard
B.outboard from the center
C.to port
D.inboard toward the center

单项选择题

In towing，heaving lines are used for（）.

A.passing a tow bridle to the tug
B.passing a messenger line
C.heaving in the tow bridle
D.service lines with rocket line throwers

单项选择题

In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.

A.shock loading on the tow line is reduce
B.towing speed is improved
C.the vessel is more visible from the tug
D.the catenary of the tow line is reduced