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
An ocean towing bridle should（）.
A
have equal legs of sufficient length
B
have a large angle between the legs
C
be formed on a bight of cable through a ring
D
never be made up of chain
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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
In order to retrieve an inflatable liferaft and place it on deck，you should heave on the ______.A.lifelinesB.righting strapC.sea anchorD.towing bridle
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 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
An ocean tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful Which action should now be taken?______.A.Abandon the towing vessel.B.Radio for emergency assistance.C.Slip the towline and allow it to run off the drum.D.Secure all watertight openings on the towing vessel.
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 tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful. Which action should now be taken? （）AAbandon the towing vesselBRadio for emergency assistanceCSlip the towline and allow it to run off the drumDSecure all watertight openings on the towing vessel
单选题On a long ocean tow，the bridle should be made up of two equal lengths of（）.AchainBwireCnylonDmanila
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 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If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.AThe towing line between the two vessels should be clear of the waterBThe towing line should be taut at all times between the vesselsCThere should be a catenary so the line dips into the waterDNone of the above
单选题What is NOT suitable for use in making up the towing rig for a heavy，long ocean tow?（）AChainBRingCSolid thimbleDA fishplate
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To clean a dirty fiber towing hawser used in ocean towing，you should（）.Ause lye or other mild detergentBwash it with fresh water，dry and store itCwash it with salt waterDuse cleaning fluid on nylon，dacron and other synthetic lines
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If the towline parts，you should（）.Astart towing by pushing aheadBabandon the towing vesselCretrieve the tow bridleDrelieve strain on the retrieving line
单选题To reduce stress on the towing hawser when towing astern (ocean tow)，the hawser should be （）.Asecured to the aftermost fitting on the towing vesselBjust touching the waterCunderwaterDas short as possible
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