A.block used only with manila rope
B.chock roller
C.hinged block
D.strong block used for short，sharp pulls
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A.lower spring buoys into the water
B.find an anchor after the buoy has been lost
C.transfer a pennant wire to the anchor handling boat
D.clean chain as it is hauled into the rig
A.keep a line from fraying
B.join lines of unequal size
C.stop off a line
D.shorten a line
A.covering wire or fiber rope
B.forcing fids into a line
C.dogging hatches
D.splicing lines
A.drop ladder
B.life ladder
C.Jacob's ladder
D.jury ladder
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
最新試題
The square knot is used for（）.
When a line is laid down in loose，looping figure-eights，it is said to be（）.
What is meant by the term two-blocked（）.
The use of（）between bags may lead to chafe and tearing of the bags.
When riveted joints occur at the ends of plating they are called（）.
Which is NOT a part of an anchor（）.
What is normally used to pass a mooring line to a dock（）.
When towing，what is the main reason for using a chain bridle on a wire hawser（）.
Which knot should be used to send a man over the side when he may have to use both hands（）.
What material may be substituted for zinc when making a poured metal socket ending to a wire rope（）.