A.A black ball that is hoisted when the ship anchors
B.A buoy attached to the anchor
C.A buoy attached to the scope of an anchor chain
D.A mark of the number of fathoms in an anchor chain
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A.Oil Rig chain and Oil Field Stud Link chain
B.Flash-butt welded chain and Di-Lok chain
C.Flash-butt welded chain and Oil Rig chain
D.Oil Field Stud Link chain and Flash-butt welded chain
A.Self-loading
B.Self-trimming
C.Self-unloading
D.Self-discharging
A.number of strands
B.number of wires in each strand
C.circumference
D.diameter
A.and preventer have equal stress
B.stronger than the preventer to minimize the danger of separation
C.take a lighter load than the preventer as a safety factor
D.take the stress in case the preventer parts
A.is stated on the vessel's Certificate of Inspection
B.is the number authorized in the Navigation Rules
C.depends on the number of lifejackets you carry
D.is the number authorized by your license
最新試題
When paying out nylon line from around the bitts（）.
Cribbing is（）.
When two lines are spliced together,（）.
An intermediate spring is（）.
In the manufacture of wire rope，if the wires are shaped to conform to the curvature of the finished rope before they are laid up，the rope is called（）.
When rigging a bosun’s chair，a tail block or lizard is used to（）.
When a davit-launched raft is lowered from a ship，upon becoming waterborne，the raft is released by（）.
What equipment is customarily used when seamen are working on a stage rigged over the side of a vessel（）.
When attempting to free an anchor jammed in the hawsepipe，the simplest method of freeing it may be（）.
You are preparing to lubricate standing rigging on your vessel．When rigging a bosun’s chair on a stay with a shackle，（）.