A.will not jam on the mooring line
B.is stronger
C.is easier to use when under heavy tension
D.is safer to use when under heavy tension
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A.manila
B.nylon
C.polypropylene
D.dacron
A.increases the strength of the hook
B.prevents the sling ring from coming out of the hook if the strain is abruptly eased
C.prevents the sling ring from coming out of the hook if there is a strain on the sling ring
D.All of the above
A.square knot
B.carrick bend
C.sheet bend
D.bowline
A.square knot
B.carrick bend
C.becket bend
D.sheepshank
A.monkey's fist
B.ball or baseball knot
C.heaving knot
D.three strand Turk's head
最新試題
Which tensioning device is used with chain to secure heavy vehicles aboard Ro-Ro vessels（）.
What material may be substituted for zinc when making a poured metal socket ending to a wire rope（）.
When a line is laid down in loose，looping figure-eights，it is said to be（）.
The only wire rope termination which may be made in the field is（）.
Which lashing gear used aboard Ro-Ro vessels should be painted or soaked in oil when not in use（）.
What type of line melts easiest（）.
When riveted joints occur at the ends of plating they are called（）.
Which item is NOT required to be marked with the vessel’s name（）.
Which material should NOT be used to secure cargo on deck for a voyage（）.
What is the main purpose of dunnage（）.