A.forming temporary eyes in lines
B.joining two lines of equal size
C.keeping line from unlaying or fraying
D.joining two lines of different size
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A.number of strands
B.number of wires in each strand
C.circumference
D.diameter
A.raise the boom
B.raise the hook
C.raise the boom and hook
D.check the boom stop
A.manila
B.nylon
C.polypropylene
D.dacron
A.gantline
B.life line
C.strop
D.whip
A.join two lines of different sizes
B.join two lines of equal sizes
C.add strength to a weak spot in a line
D.act as a stopper to transfer a line under strain
最新試題
Cribbing is（）.
After deploying the anchor，a permanent chain chaser is（）.
The size of wire rope is determined by the（）.
In securing a towing cable，consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by（）.
The rope which is the lightest is（）.
The only wire rope termination which may be made in the field is（）.
Back-up wires on a towed vessel provide（）.
Limit switches on gravity davits should be tested by（）.
Manila slings should not be used to load（）.
Extended cyclical variations in tensions will cause an anchor chain to break due to（）.