单项选择题
A.will not jam on the mooring line B.is stronger C.is easier to use when under heavy tension D.is safer to use when under heavy tension
The line with the most stretch is（）.A.manilaB.nylonC.po...
单项选择题The line with the most stretch is（）.
A.manila B.nylon C.polypropylene D.dacron
The latch of a safety hook（）.A.increases the strength o...
单项选择题The latch of a safety hook（）.
A.increases the strength of the hook B.prevents the sling ring from coming out of the hook if the strain is abruptly eased C.prevents the sling ring from coming out of the hook if there is a strain on the sling ring D.All of the above
The knot used to join two lines or two large hawsers fo...
单项选择题The knot used to join two lines or two large hawsers for towing is called a（）.
A.square knot B.carrick bend C.sheet bend D.bowline
