单项选择题
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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相关考题
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单项选择题
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 -
单项选择题
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 -
单项选择题
A sail hook is used for（）.
A.hoisting a windsail
B.parcelling
C.sewing canvas
D.testing canvas
