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第1题
A.is more flexible and has the ability to absorb shock because of its weight
B.is less subject to wear and damage from abrasion
C.requires little maintenance
D.All of the above
第2题
The choice of length of tow bridle legs is governed by the ______.
A.Expected towing forces
B.Capability of retrieving gear
C.Freeboard of the unit being towed
D.Need to reduce yaw
第3题
When being towed,a fairlead is a ().
A.Fabricated shape used to change the direction of a flexible member of the tow hookup
B.Fabricated shape used to secure the tow hookup to the towed vessel
C.Line connecting the fishplate to the bridle legs
D.Line connecting the tow bridle to the towed vessel
第4题
A.Trim the tow by the bow
B.Trim the tow by the stern
C.List the tow to windward
D.Adjust the length of the towing bridle
第5题
One advantage of chain over wire rope for a tow bridle is that chain ______.
A.is better suited for inland towing
B.resists damage from chafing
C.handles more easily
D.equalizes towing forces better
第6题
An ocean towing bridle whose legs are equal length, but too short, may ______.
A.fail to provide spring in the hawser
B.cause unequal distribution of the load to one leg
C.cause the bridle legs to jump clear of the chocks or fairleads
D.None of the above
第7题
An ocean towing bridle whose legs are of equal length,but too short,may ______.
A.fail to provide spring in the hawser
B.cause unequal distribution of the load to one leg
C.cause the bridle legs to jump clear of the chocks or fairleads
D.None of the above
第8题
A chain bridle is used when towing astern because it ______.
A.is easy to connect
B.provides an effective catenary and absorbs shock due to its weight
C.makes rigging a swivel unnecessary
D.prevents the tow from yawing by the drag of the chains in a seaway
第9题
A.reduce the draft of the barge
B.shorten one leg of the bridle
C.place bulky deck loads as far aft as possible
D.trim the barge down by the bow
第10题
A. A cable clamp
B. A fishplate,flounder,or towing plate
C. A pad eye
D. The towing bitt
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