單項選擇題Under identical load conditions，nylon，when compared with natural fiber line，will stretch（）.

A.less and have less strength
B.more and have less strength
C.more and have greater strength
D.less and have greater strength


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題Uncoiling manila line improperly can result in a(n)（）.

A.number of fishhooks
B.kink in the line
C.50% loss of efficiency of the line
D.increase in deterioration of the line

2.單項選擇題Two mooring lines may be placed on the same bollard and either one cast off first if（）.

A.the eye of the second line is dipped
B.the mooring lines are doubled
C.the bollard has two horns
D.one of the lines is a breast line

3.單項選擇題Tugs sometimes shackle a length of chain in the towline in order to（）.

A.take the wear should the towline drag bottom
B.assure that if the towline is overstressed it will part close to the bridle
C.prevent the towline from whipping should it part
D.put spring in the towline

4.單項選擇題Towlines should be inspected for chafing where the towline（）.

A.passes over the stern of the towing vessel
B.passes through chocks
C.is attached to the disabled vessel
D.All of the above

5.單項選擇題The strongest of the natural fibers is（）.

A.cotton
B.hemp
C.manila
D.sisal