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 crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?（）
A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.
A chain bridle is used when towing astern because it（）.
A continual worsening of the list or trim of any floating ship indicates（）.
A continuous watertight bulkhead on a ship is normally also a(n)（）.
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 common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?（）
A backlash below a lock is defined as a（）.
A ballasted vessel sinks enroute to a dry dock. Under these circumstances，the vessel’s owner can claim（）.
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.