A bridle for an ocean tow consists of（）.

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• If the towing bridle legs are not of equal length（）.

  A . excessive strain is placed on the shorter leg B . the shorter leg may fail C . the longer leg is slack D . All of the above

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• What is used to prevent twisting of a towing bridle?（）

  A . A bitt B . A bulkhead C . A V-spring D . A fishplate

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• A tow bridle is attached to the main tow hawser at the（）.

  A . bight ring B . tow hook C . fishplate D . swivel

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• In securing deck loads for an ocean tow，drill pipe should be（）.

  A . galvanized to protect against corrosion B . held in place with heavy materials such as spare pendant wire C . limited to no more than five courses high D . provided with bulwarks at both ends of their bay

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• On a long ocean tow，the bridle should be made up of two equal lengths of（）.

  A . chain B . wire C . nylon D . manila

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• A fiber towing hawser is readied for service by（）.

  A . spooling it on a winch cathead B . coiling it in a counterclockwise direction on the fantail C . faking it on deck in a fore and aft direction D . spooling it on a reel lying on its side to prevent rolling

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• 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

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• A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.

  A . the masthead lights for a towing vessel B . the lights for a vessel restricted in its ability to maneuver C . sidelights，stern light and towing light D . All of the above

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• To clean a dirty fiber towing hawser used in ocean towing，you should（）.

  A . use lye or other mild detergent B . wash it with fresh water，dry and store it C . wash it with salt water D . use cleaning fluid on nylon，dacron and other synthetic line

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• What is NOT suitable for use in making up the towing rig for a heavy，long ocean tow?（）

  A . Chain B . Ring C . Solid thimble D . A fishplate

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• It is good practice to use long towlines for ocean tows because the（）.

  A . wear on the towline is equalized B . weight of the towline increases the towing force C . dip in the towline absorbs shock loads D . danger of overriding is reduced

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• 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 chai

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• 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

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• 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

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• When towing in an open seaway，it is important to use a towing line（）.

  A . made only of wire rope，due to possible weather conditions B . that will have the tow on a crest while your vessel is in a trough C . that will have the tow on a crest while your vessel is on a crest D . with little dip to gain maximum control of the tow

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• 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

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• You have a large，broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however，unless there are special circumstances（）.

  A . the towing vessel should slip first B . the vessel towed should slip first C . they should slip simultaneously D . either vessel may slip first

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• As seen from the tow，what should connect the leading ends of both towing bridle legs to the main towing hawser?（）

  A . A cable clamp B . A fishplate，flounder，or towing plate C . A pad eye D . The towing bitt

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• 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（）.

  A . one-half the SWL of the main towing hawser B . three-fourths the SWL of the main towing hawser C . that of the main towing hawser D . twice that of the main towing hawser

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• On a light tow，what could you substitute for a fishplate?（）

  A . heart-shaped shackle B . pelican hook C . swivel D . ring

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• When towing，what is the main reason for using a chain bridle on a wire hawser（）.

  A . It makes for an easy connection B . It gives a spring effect to cushion the shock C . It eliminates the necessity of a swivel D . It does not chafe

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• The biggest problem encountered when towing bridle legs are too short is（）.

  A . retrieval B . adjusting tension C . excessive strain D . hookup to main towline

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• All inspected vessels on unrestricted ocean routes must have equipment on board for testing an individual’s（）.

  A . blood B . breath C . urine D . All of the above

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