单项选择题

Which statement is TRUE about nylon line?（）

A.Manila line will usually last longer than nylon line
B.Nylon line is excellent for use in alongside towing
C.A normal safe working load will stretch nylon line 50%
D.Nylon stoppers should be used with nylon line

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热门试题

单项选择题Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）

A.Distress signal
B.Urgency signal
C.Safety signal
D.None of the above

单项选择题Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）

A.Bow line
B.Breast line
C.Spring line
D.Stern line

单项选择题Which mooring line has the least elasticity?（）

A.Dacron
B.Nylon
C.Esterlene
D.Polypropylene

单项选择题Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）

A.Crossing the spring lines
B.Slacking all forward running lines while keeping all after running lines taut
C.Doubling up on spring or breast lines
D.Slacking bow and stern lines

单项选择题Which method is used to detect rot in manila lines?（）

A.Feeling the surface of the line for broken fibers
B.Measuring the reduction in circumference of the line
C.Observing for the appearance of mildew on the outer surface
D.Opening the strands and examining the inner fibers