A.is
B.are
C.was
D.were
您可能感興趣的試卷
你可能感興趣的試題
A.a safety line attached to a man working over the side
B.used to measure water depth
C.used to slow the headway of a barge
D.used to measure the overhead height of a bridge
A.actual total loss
B.constructive total loss
C.general average
D.particular average
A.Factor of safety
B.Number of wires per strand
C.Number of strands per wire rope
D.Number of wires in the core
A.when anchoring in the Mediterranean
B.when docking stern to a berth
C.when docking bow to a berth
D.when anchoring in a strong current
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.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.keep a line from fraying
B.join lines of unequal size
C.stop off a line
D.shorten a line
A.blocks have been overhauled
B.hauling parts of two tackles are attached
C.hauling part leads through the movable block
D.hauling part leads through the standing block
A.sailing chart
B.general chart
C.coast chart
D.harbor chart
A.small plate which fills the aperture between riveted strakes and the vessel framing
B.backing plate which is used to level the strakes while riveting，and then removed
C.internal frame to which the side shell is riveted
D.seam that is welded after riveting is completed
最新試題
A “sheepshank” is used to（）.
A “spring line” is（）.
A “l(fā)iner” in riveted construction of a vessel is a(n)（）.
A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?（）
A crew member is having an epileptic convulsion. You should（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
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 change of a documented vessel’s name can only be made by the（）.
A casualty report of an intentional grounding of a ship is required under what condition?（）