A.fatigue
B.corrosion
C.distortion
D.abrasion
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A.wooden blocks or dunnage placed between a deck load and the deck
B.the chains and shackles used to secure a deck cargo
C.a crate in which a deck cargo is packaged
D.cardboard separation pieces placed between deck loads to prevent chafing
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
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
最新試題
If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.
An anchor winch should be equipped with mechanical brakes capable of holding（）.
Chafing gear is used to（）.
Herringbone is a term associated with（）.
Compared to manila line，size for size，nylon line（）.
Cribbing is（）.
The main function of the core of a wire rope is to（）.
The square knot is used for（）.
In securing a towing cable，consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by（）.
At the instant when a string of casing being run from a ship is landed in the well head,（）.