单项选择题
A.boat fall B.fairlead C.riding pawl D.topping lift
A snatch block is a（）.A.block used only with manila rop...
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
A smooth，tapered pin，usually of wood，used to open up th...
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
A short splice in a line（）.A.decreases the size of the ...
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
