riding pawl
buckler
devil's claw
locking ring
第1题：
A sea anchor is ______.
A.a heavy anchor with an extra long line used to anchor in deep water
B.a cone shaped bag used to slow down the wind drift effect
C.a pad eye to which the sea painter is made fast
D.made of wood if it is of an approved type
第2题：
Under normal weather and sea conditions when securing a stack of containers with twist locks，lashings are required when the tier exceeds what height?
A.Lashings are always required
B.One container
C.Two containers
D.Three containers
第3题：
A.trip
B.voyage
第4题：
What may NOT be used when securing heavy vehicles aboard Ro-Ro vessels ________．
A.Chain lever
B.Turnbuckle
C.Webbing
D.Chain
第5题：
What is NOT a securing system used on a containership ________．
A.Lashing system
B.Stacking system
C.Locking system
D.Buttress system
第6题：
This illustration shows the correct method of securing a ______.
A.man-rope
B.frapping line
C.sea painter
D.lifeline
第7题：
Under normal weather and sea conditions when securing a stack of containers with non-locking fittings，lashings are required when the tier exceeds what height ________．
A.Lashings are always required
B.One container
C.Two containers
D.Three containers
第8题：
A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a ______.
A.riding pawl
B.buckler
C.devil’s claw
D.locking ring
第9题：
What is used when securing heavy vehicles aboard Ro-Ro vessels ________．
A.Buckle or ratchet tensioner
B.Webbing
C.Manila rope
D.None of these
第10题：
Which lashing device（s）would be used in securing heavy vehicles aboard Ro-Ro vessels ________．
A.Buckle or ratchet tensioner
B.Webbing
C.Chain
D.All of the above