题目内容
（请给出正确答案）
Which wire rope purchases may be used with a 30-ton pedestal crane ________．
A.Hoist
B.Luff
C.Rider block
D.All of the above
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更多“Which wire rope purchases may …”相关的问题
A.Babbitt
B.Bronze
C.Lead
D.Zinc
A.date of the test
B.load at which a test sample broke
C.name of the vessel
D.number of strands and of wires in each strand
A.Stack weights should be less when using a solid bar lashing as compared to a wire lashing
B.Stack heights may be increased when using a solid bar lashing
C.Stack heights should be reduced when using a solid bar lashing
D.Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier（s）
A wire rope that has been overstrained will show ______.
A.a bulge in the wire where the strain occurred
B.a decrease in diameter where the strain occurred
C.a kink in the wire where the strain occurred
D.no visible effects of an overstrain
If kinking results while wire rope is being coiled clockwise, you should______.
A.coil it counterclockwise
B.not coil it
C.take a turn under
D.twist out the kinks under a strain
A.composite
B.left-lay
C.improved
D.preformed
The advantage(s) of using wire rope lashing on vehicles aboard Ro-Ro vessels is that it__.
A.is lighter than chain
B.has a good working life
C.is not affected by temperature
D.All of the above
A.bow mooring／stern line
B.forward spring／after spring
C.forward breast rope／forward spring
D.slip rope／stern line
Where do fatigue failures of wire rope mooring lines usually occur ________．
A.In the middle part of the line length
B.Near the socketed end fitting adjacent to the anchor
C.At the point where the line touches the bottom
D.At the place the anchor buoy is attached to the line
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