A.can be released while under strain
B.is used for boat falls
C.is used for extra heavy loads
D.is used for light loads only
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A.pike pole
B.jack staff
C.line rod
D.hooker
A.quarter line
B.back line
C.peg line
D.jockey line
A.backing wire
B.scissor wire
C.face wire
D.breast wire
A.pelican hook
B.connecting link
C.shackle
D.retaining hook
A.toppling
B.racking
C.buckling
D.crushing
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The freight will not be payable（）the goods are delivered in such a condition that they are substantially and in a mercantile sense the same goods as those shipped.
A tool consisting of a handle and releasable chain used for turning pipe or fittings of a diameter larger than that which a pipe wrench would fit is called（）.
The fittings used to secure a watertight door are known as（）.
Progressive flooding is controlled by securing watertight boundaries and（）.
Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the（）.
If your vessel has a list to port due to negative GM and off-center weight，the first corrective measure you should take is to（）.
A spring line is a（）.
To reduce stress on the towing hawser when towing astern (ocean tow)，the hawser should be （）.
In the stowage of deck cargo，cribbing is（）.
The lashings of a stack of containers with interlocking fittings restrain the forces that cause（）.