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
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A.anchor the boat
B.pick up heavy loads
C.protect fiber rope from abrasion
D.strengthen mooring lines
A.for portable fenders
B.for ground tackle
C.on the inside of the hawsepipe
D.on mooring lines
A.a factor of safety
B.additional strength
C.a distribution of the towing load
D.All of the above
A.the total weight in air of the casing string is removed from the ship
B.the hook load (weight of the casing string) is removed from the ship
C.the weight of the casing inside the riser is removed from the ship
D.the weight of the casing string added to the weight of the fill-up mud is removed from the ship
A.equal to the chains they are connecting
B.25% more than the chains they are connecting
C.50% more than the chains they are connecting
D.100% more than the chains they are connecting
最新試題
Chafing gear is normally used（）.
Extended cyclical variations in tensions will cause an anchor chain to break due to（）.
Limit switches on gravity davits should be tested by（）.
A whipping is（）.
Manila lines in which the strands are right-hand laid（）.
The strongest method of forming an eye in wire rope is using（）.
The size of wire rope is determined by the（）.
The square knot is used for（）.
After deploying the anchor，a permanent chain chaser is（）.
Back-up wires on a towed vessel provide（）.