单项选择题

Which tensioning device is used with chain to secure heavy vehicles aboard Ro-Ro vessels（）.

A.Chain lever
B.Buckle tensioner
C.Adjust-a-matic tensioner
D.Ratchet tensioner

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单项选择题

Which method should be used to secure a manila line to bitts（）.

A.A round turn on the bitt farthest from the strain and then figure eights
B.A round turn on the bitt closest to the strain and then figure eights
C.Figure eights and then a round turn at the top of both bitts
D.Only figure eights are necessary on both bitts

单项选择题

Which material should NOT be used to secure cargo on deck for a voyage（）.

A.Steel chain
B.Wire rope
C.Steel strapping
D.Fiber rope

单项选择题

Which lashing materials would be used in securing light vehicles aboard Ro-Ro vessels（）.

A.Chain lever or turnbuckle
B.Webbing
C.Chain
D.None of the above