单选题A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.Ais more flexible and has the ability to absorb shock because of its weightBis less subject to wear and damage from abrasionCrequires little maintenanceDAll of the above
单选题
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.
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
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One advantage of chain over wire rope for a tow bridle is that chain ______.A.is better suited for inland towingB.resists damage from chafingC.handles more easilyD.equalizes towing forces better
An ocean towing bridle whose legs are of equal length，but too short，may ______.A.fail to provide spring in the hawserB.cause unequal distribution of the load to one legC.cause the bridle legs to jump clear of the chocks or fairleadsD.None of the above
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain ______.A.is more flexible and has the ability to absorb shock because of its weightB.is less subject to wear and damage from abrasionC.requires little maintenanceD.All of the above
Vessels lying afloat at buoys for more than 24 hours should use anchor chain for ______ and insurance wire for ______.A.bow mooring／stern lineB.forward spring／after springC.forward breast rope／forward springD.slip rope／stern line
The choice of length of tow bridle legs is governed by the ______．A.Expected towing forcesB.Capability of retrieving gearC.Freeboard of the unit being towedD.Need to reduce yaw
A tow astern is veering from side to side on its towline．The best way of controlling the action is to ______．A.Trim the tow by the bowB.Trim the tow by the sternC.List the tow to windwardD.Adjust the length of the towing bridle
A bridle for an ocean tow consists of ______.A.two chains of equal lengthB.a single nylon pendant rove through a heavy ring free to move on the pendantC.two long legs of wire rope shackled to a fishplateD.a single length of heavy chain with both ends secured on deck to welded pad eyes
A chain bridle is used when towing astern because it ______.A.is easy to connectB.provides an effective catenary and absorbs shock due to its weightC.makes rigging a swivel unnecessaryD.prevents the tow from yawing by the drag of the chains in a seaway
In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to ______.A.increase fatigue life of the systemB.reduce the time to retrieve the lineC.increase the holding powerD.reduce the catenary
单选题When towing，what is the main reason for using a chain bridle on a wire hawser（）.AIt makes for an easy connectionBIt gives a spring effect to cushion the shockCIt eliminates the necessity of a swivelDIt does not chafe
单选题One advantage of chain over wire rope for a tow bridle is that chain（）.Ais better suited for inland towingBresists damage from chafingChandles more easilyDequalizes towing forces better
单选题An ocean towing bridle should（）.Ahave equal legs of sufficient lengthBhave a large angle between the legsCbe formed on a bight of cable through a ringDnever be made up of chain
单选题A bridle for an ocean tow consists of（）.Atwo chains of equal lengthBa single nylon pendant rove through a heavy ring free to move on the pendantCtwo long legs of wire rope shackled to a fishplateDa single length of heavy chain with both ends secured on deck to welded pad eyes
单选题The biggest problem encountered when towing bridle legs are too short is（）.AretrievalBadjusting tensionCexcessive strainDhookup to main towline
单选题An ocean towing bridle whose legs are of equal length，but too short，may（）.Afail to provide spring in the hawserBcause unequal distribution of the load to one legCcause the bridle legs to jump clear of the chocks or fairleadsDNone of the above
单选题If the towing bridle legs are not of equal length（）.Aexcessive strain is placed on the shorter legBthe shorter leg may failCthe longer leg is slackDAll of the above
单选题What is used to prevent twisting of a towing bridle?（）AA bittBA bulkheadCA V-springDA fishplate
单选题A chain bridle is used when towing astern because it（）.Ais easy to connectBprovides an effective catenary and absorbs shock due to its weightCmakes rigging a swivel unnecessaryDprevents the tow from yawing by the drag of the chains in a seaway
单选题The MINIMUM acceptable size for a towing bridle would be that size in which the safe working load (SWL) of each leg of the bridle is equal to（）.Aone-half the SWL of the main towing hawserBthree-fourths the SWL of the main towing hawserCthat of the main towing hawserDtwice that of the main towing hawser
单选题In a combination chain and wire rope mooring system，the anchor chain is deployed at the anchor end of the line to（）.Aincrease fatigue life of the systemBreduce the time to retrieve the lineCincrease the holding powerDreduce the catenary
单选题When connecting the tow bridle to a tug, the end of the bridle is passed with a（）.Aheaving lineBshot lineChigh lineDmessenger line
单选题In towing，heaving lines are used for（）.Apassing a tow bridle to the tugBpassing a messenger lineCheaving in the tow bridleDservice lines with rocket line throwers
单选题What does the term end-for-end refer to in regard to a wire towing hawser（）.ACutting off the bitter and towing ends of the wire ropeBSplicing two wire ropes togetherCRemoving the wire rope from the drum and reversing it so that the towing end becomes the bitter endDRemoving the wire rope from the drum and turning it over so that the wire bends in the opposite direction when rolled on a drum
单选题Vessels lying afloat at buoys for more than 24 hours should use anchor chain for（）and insurance wire for（）.Abow mooring／stern lineBforward spring／after springCforward breast rope／forward springDslip rope／stern line
单选题A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.Ais more flexible and has the ability to absorb shock because of its weightBis less subject to wear and damage from abrasionCrequires little maintenanceDAll of the above
单选题A tow astern is veering from side to side on its towline. The best way of controlling the action is to（）.Atrim the tow by the bowBtrim the tow by the sternClist the tow to windwardDadjust the length of the towing bridle
单选题When towing in an open seaway，it is important to use a towing line（）.Amade only of wire rope，due to possible weather conditionsBthat will have the tow on a crest while your vessel is in a troughCthat will have the tow on a crest while your vessel is on a crestDwith little dip to gain maximum control of the tow
单选题As seen from the tow，what should connect the leading ends of both towing bridle legs to the main towing hawser?（）AA cable clampBA fishplate，flounder，or towing plateCA pad eyeDThe towing bitts