A vessel towing a barge astern would show，at the stern（）.

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• During the day，a vessel with a tow over 200 meters in length will show（）.

  A . a black ball B . a diamond shape C . two cones，apexes together D . one cone，apex upward

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• If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）

  A . Make periodic inspections of bilges B . Keep the barge under constant surveillance C . Have a properly certificated tankerman or at least one licensed officer on board the towing vessel D . Verify ullage reading

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• You are Master of a towing vessel engaged in towing three barges astern.The middle barge of the tow would be required to sound which of the following during restricted visibility （）.

  A . No fog signal B . A prolonged blast at intervals never to exceed more than two minutes C . A prolonged blast followed by two short blasts at intervals never to exceed more than two minutes D . A prolonged blast followed by three short blasts at intervals never to exceed more than one minute

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• A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is（）.

  A . tow strain B . catenary length C . being in step D . Williamson's Tow

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• The term BOLLARD PULL refers to a towing vessel’s（）.

  A . propulsion horsepower available B . pulling ability at cruise power C . towing winch capability D . pulling ability under static conditio

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• What is NOT a problem area when loading barges on a LASH type vessel? （）

  A . Frequent stability calculations required B . Thorough pre-planning required C . Limiting depths alongside berths restrict barge drafts D . Minimum trim and 0°list are required for optimum operatio

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• A vessel towing where the tow prevents her from changing course shall carry（）.

  A . only the lights for a vessel towing B . only the lights for a vessel restricted in her ability to maneuver C . the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver D . the lights for a towing vessel and the lights for a vessel not under command

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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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• You intend to tow a barge with one tug and expect continuous high winds from the north. To reduce the yaw of your tow，you should（）.

  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

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• A vessel being towed astern，where the length of the tow exceeds 200 meters，will exhibit （）.

  A . two balls in a vertical line B . a diamond shape where it can best be seen C . a ball on each end of the tow D . no dayshape

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• A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.

  A . three masthead lights in a vertical line instead of either the forward or after masthead light B . two masthead lights in a vertical line instead of either the forward or after masthead lights C . two towing lights in a vertical line at the stern D . a small white light aft of the funnel

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• A power-driven vessel，when towing astern，shall show（）.

  A . two towing lights in a vertical line B . a towing light in a vertical line above the sternlight C . two towing lights in addition to the sternlight D . a small white light in lieu of the sternlight

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• A towing vessel becomes tripped while towing on a hawser astern. What factor is MOST important when assessing the risk of capsizing? （）

  A . Length of the towline B . Height of the towline connection C . Longitudinal position of the towline connection D . Direction of opposing force

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• A vessel brought alongside should be fended off the towing vessel by（）.

  A . crew members using their arms B . crew members using the strong muscles of their legs C . fenders D . No fending is necessary due to the rugged construction of most towing vessel

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• A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of（）.

  A . a vessel towing by pushing ahead B . a power-driven vessel，not towing C . a barge being pushed ahead D . either answer A or answer B

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• A towing vessel and her tow are severely restricted in their ability to change course. When making way，the towing vessel will show ONLY（）.

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

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• As operator of a 199 GT towing vessel sailing foreign，it shall be your duty to enter in the Official Logbook or other permanent record（）.

  A . all information contained on the barge's Certificate of Inspection B . the condition of all towing gear to be used C . all navigational aids to be used D . the barges load line and draft reading

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• A tow of 9 barges is made up three abreast by three long. The towboat is faced up to the last barge of the center string. The outer two strings of barges are the（）.

  A . port and starboard strings B . outer strings C . drag strings D . side string

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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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• A vessel or object being towed astern shall display a(n)（）.

  A . forward masthead light B . after masthead light C . stern light D . All of the above

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• Prior to loading barges over the stern of a LASH vessel，the vessel should be trimmed in what manner?（）.

  A . Two to four feet by the bow B . Slightly by the bow C . No trim should be permitted D . Slightly by the ster

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• Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.

  A . not exceed bare steerageway during the transit B . take a strain as soon as you can to control the tow C . come up to speed very slowly and maintain a safe speed D . come up to speed quickly，then cut back power considerably to ease the strai

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• A tow of 9 barges is made up three abreast and three long. The towboat is faced up to the center string which is known as the（）.

  A . main string B . push string C . power string D . face string

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• A towing vessel is tripped when（）.

  A . it is overtaken by the tow B . it is pulled sideways by the tow C . the weight of the towing hawser causes loss of maneuverability D . the propeller is fouled by the towing hawser

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