An ocean tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful. Which action should now be taken? （）

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• A bridle for an ocean tow consists of（）.

  A . two chains of equal length B . a single nylon pendant rove through a heavy ring free to move on the pendant C . two long legs of wire rope shackled to a fishplate D . a single length of heavy chain with both ends secured on deck to welded pad eye

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• An inconspicuous，partly submerged vessel or object being towed，where the length of tow is 100 meters，shall show（）.

  A . yellow lights at each end B . two red lights in a vertical line C . a black ball D . a diamond shape

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• There is actually an overlapped area of（）ocean regions somewhere in Western European Waters.

  A . two B . three C . more than two D . more than three

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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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• The ocean bottom that extends from the shoreline out to an area where there is a marked change in slope to a greater depth is the（）.

  A . abyssal plain B . continental shelf C . borderland D . offshore terrace

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• An inflatable liferaft is floating in its container，attached to the ship by its painter，as the ship is sinking rapidly. Which action should be taken with respect to the liferaft container? （）

  A . Cut the painter line so that it will not pull the liferaft container down B . Swim away from the container so that you will not be in danger as it goes down C . Take no action as the pull on the painter will cause the liferaft to inflate and open the container D . Manually open the container and inflate the liferaft with the hand pum

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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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• What is NOT required on an uninspected towing vessel? （）

  A . Certificate of Documentation B . Certificate of Inspection C . Operators Merchant Marine license D . FCC Station License

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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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• 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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• 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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• If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.

  A . pushed ahead B . towed alongside C . towed astern D . Any of the above

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• Hawaii is in the （）Ocean.

  A . Atlantic B . Indian C . Pacific

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• The speed of an ocean current is dependent on（）.

  A . the density of the water B . the air temperature C . the presence of a high pressure area near it D . underwater soil conditio

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• A tug is towing three manned barges in line in fog. The first vessel of the tow should sound （）.

  A . no fog signal B . one short blast C . one prolonged and three short blasts D . one prolonged，one short，and one prolonged blast

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• You board an inflatable liferaft that has been hand launched from a sinking vessel. What should you do first after everyone is onboard the liferaft?（）.

  A . Cut the painter B . Operate the radio equipment C . Open the equipment pack D . Ventilate the liferaft of CO

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• There is actually an overlapped area of（）ocean regions somewhere in Western European waters.

  A . two B . three C . more than two D . more than three

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• The Ocean Park in Hongkong is regarded as the largest theme park in the world.

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• What is not mentioned when Maggie is talking about her experience in Ocean Park？

  A．Shark. B．Dolphins. C．Tropical fishes. D．Crocodiles

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• If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights.These additional lights may be shown if the tow is ().

  A.pushed ahead B.towed alongside C.towed astern D.Any of the above

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