單項(xiàng)選擇題

A chain bridle is used when towing astern because it（）.

A.is easy to connect
B.provides an effective catenary and absorbs shock due to its weight
C.makes rigging a swivel unnecessary
D.prevents the tow from yawing by the drag of the chains in a seaway

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單項(xiàng)選擇題

A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.

A.is more flexible and has the ability to absorb shock because of its weight
B.is less subject to wear and damage from abrasion
C.requires little maintenance
D.All of the above

單項(xiàng)選擇題

A celestial body’s complete orbit around another body is（）.

A.a rotation
B.a revolution
C.space motion
D.nutation

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A chain bridle is used when towing astern because it（）.

你可能感興趣的試題

A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.

A celestial body’s complete orbit around another body is（）.

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