A.Three
B.Five
C.Six
D.Seven
您可能感興趣的試卷
你可能感興趣的試題
A.brake compressor wheel
B.devil's claw
C.wildcat
D.winchhead
A.chain
B.wire
C.nylon
D.manila
A.heart-shaped shackle
B.pelican hook
C.swivel
D.ring
A.floats
B.stretches
C.handles easily
D.resists rot
最新試題
Which is NOT a part of an anchor().
The tackle that raises and lowers the boom is().
The only wire rope termination which may be made in the field is().
When a line is subject to wear where it passes through a mooring chock,it should be().
When towing,what is the main reason for using a chain bridle on a wire hawser().
Manila slings should not be used to load().
Neglecting friction,you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use().
Which knot should be used to send a man over the side when he may have to use both hands().
What is the main purpose of dunnage().
When passing a hawser to the dock you would first use what line().