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 “figure eight” knot is used to（）.
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 ballasted vessel sinks enroute to a dry dock. Under these circumstances，the vessel’s owner can claim（）.
A “reaching” course is one in which the wind（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A backlash below a lock is defined as a（）.
A block and tackle is “rove to advantage”. This means that the（）.
A “sheepshank” is used to（）.
A celestial body’s complete orbit around another body is（）.
A “l(fā)oose” tow may cause all of the following EXCEPT（）.