A.fix
B.estimated position
C.dead reckoning position
D.running fix
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A.American Bureau of Shipping
B.Commissioner of Customs
C.Treasury Department
D.Coast Guard
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
最新試題
A continual worsening of the list or trim of any floating ship indicates（）.
A “l(fā)iner” in riveted construction of a vessel is a(n)（）.
A “Mediterranean moor” should be used when（）.
A block and tackle is “rove to advantage”. This means that the（）.
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.
A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?（）
A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that（）.
A “fifteen-pound” CO2 extinguisher is so called because（）.
A VLCC (100，000 DWT+) with a 30，000 Shaft Horsepower Steam Turbine is slow to respond to engine movements and has less stopping power than normal ships because it has a（）.
A celestial body’s complete orbit around another body is（）.