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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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
A.bifurcation
B.fish net area
C.anchorage area
D.dredging area
最新試題
A chain bridle is used when towing astern because it（）.
A change of a documented vessel’s name can only be made by the（）.
A block and tackle is “rove to advantage”. This means that the（）.
A celestial body will cross the prime vertical circle when the latitude is numerically（）.
A casualty report of an intentional grounding of a ship is required under what condition?（）
A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?（）
A “check” line is（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.
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（）.