单项选择题
A.has less strength than manila line B.has more strength than manila line C.is equivalent to manila line D.will rot quicker than manila line
Chafing gear is used to（）.A.anchor the boatB.pick up he...
单项选择题Chafing gear is used to（）.
A.anchor the boat B.pick up heavy loads C.protect fiber rope from abrasion D.strengthen mooring lines
Chafing gear is normally used（）.A.for portable fendersB...
单项选择题Chafing gear is normally used（）.
A.for portable fenders B.for ground tackle C.on the inside of the hawsepipe D.on mooring lines
Back-up wires on a towed vessel provide（）.A.a factor of...
单项选择题Back-up wires on a towed vessel provide（）.
A.a factor of safety B.additional strength C.a distribution of the towing load D.All of the above
