A.American Bureau of Shipping
B.Commissioner of Customs
C.Treasury Department
D.Coast Guard
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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
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
A.a rotation
B.a revolution
C.space motion
D.nutation
A.greater than the declination and both are of the same name
B.less than the declination and both are of the same name
C.greater than the declination and both are of contrary name
D.less than the declination and both are of contrary name
A.Under any condition
B.If the grounding lasts over 24 hours
C.If it creates a hazard to the environment
D.At the owner's discretion
最新試題
A “l(fā)iner” in riveted construction of a vessel is a(n)（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A block and tackle is “rove to advantage”. This means that the（）.
A “Mediterranean moor” should be used when（）.
A celestial body’s complete orbit around another body is（）.
A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?（）
A chart with a scale of 1:80，000 would fall into the category of a（）.
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.
A vessel’s quarter is that section which is（）.
A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.