單項選擇題A snatch block is a（）.
A.block used only with manila rope
B.chock roller
C.hinged block
D.strong block used for short，sharp pulls
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1.單項選擇題A smooth，tapered pin，usually of wood，used to open up the strands of a rope for splicing is called a(n)（）.
A.batten
B.bench hook
C.awl
D.fid
2.單項選擇題A short splice in a line（）.
A.decreases the size of the line
B.should be used if the line is going through a block
C.should only be used in wire rope
D.doubles the size of the line
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After deploying the anchor，a permanent chain chaser is（）.
題型：單項選擇題
The main function of the core of a wire rope is to（）.
題型：單項選擇題
Chafing gear is used to（）.
題型：單項選擇題
Manila lines in which the strands are right-hand laid（）.
題型：單項選擇題
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（）.
題型：單項選擇題