All towing vessels of 26 feet or longer while navigating are required to carry which item? （）

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• Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on uninspected towing vessels using fuel with a flash point of 100°F?（）

  A . There shall be at least 3 ventilator ducts open to the atmosphere B . At least one exhaust duct shall extend from the open atmosphere to the lower portion of the bilge C . At least one intake duct shall extend from the open atmosphere to the lower portion of the bilge D . Only vessels using fuel with a flash point above 110°F need ventilate engine and fuel compartment

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• In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels except a vessel（）.

  A . not under command B . restricted in her ability to maneuver C . engaged in towing D . fishing

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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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• 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 vessel behaves as if all of its weight is acting downward through the center of gravity，and all its support is acting upward through the（）.

  A . keel B . center of buoyancy C . tipping center D . amidships sectio

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• Good seamanship while towing in heavy weather requires all of the following EXCEPT（）.

  A . reducing speed to reduce surging on the towline B . lashing down or stowing all loose gear C . dogging all hatches and watertight doors D . streaming all of your towing hawser

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• A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the（）.

  A . towing vessel is less than 50 meters B . towing vessel is greater than 50 meters C . tow is less than 200 meters D . tow is greater than 200 meter

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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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• If you are guilty of failure to properly perform your duties as Operator of Uninspected Towing Vessels，which of the following actions may NOT be taken? （）

  A . Issuance of a letter of warning B . Suspension of your license C . Revocation of your license D . A fine placed against your license

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• A vessel operating in class has met all the requirements of the （）.

  A . CCS or similar society B . insurance company C . MSA D . the Custom

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• At all angles of inclination，the true measure of a vessel’s stability is the（）.

  A . metacentric height B . displacement C . righting moment D . inclining moment

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• At all angles of inclination, the ttrue measure of a vessel''s stability is the（）.

  A . metacentric height B . displacement C . righting moment D . inclining moment

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• Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency. Drills include all of the following，EXCEPT（）.

  A . testing all alarm and detection systems B . breaking out and using the vessel's emergency equipment C . participation by selected crew members D . one person putting on protective clothing，if the vessel is so equipped

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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 line connecting all possible positions of your vessel at any given time is a（）.

  A . longitude line B . latitude line C . line of position D . fix

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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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• All of the following vessels are “restricted in their ability to maneuver” EXCEPT a vessel （）.

  A . laying a pipeline B . dredging C . mineclearing D . not under command

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• Fire protection regulations for towing vessels require that all crew members participate in drills and receive instruction at least once a month. Who is responsible for ensuring that this takes place?（）

  A . The Officer in Charge，Marine Inspection B . The Master，or person in charge of the vessel C . The vessel's owner or manager D . The company's port captain or port engineer

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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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• 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 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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• Fire protection and manning regulations for towing vessels state that the Master or person in charge must ensure that all crew members who have not participated in the drills or received the safety orientation（）.

  A . receive a safety orientation or view a videotape before the vessel gets underway B . view a videotape on safety procedures within 48 hours of reporting for duty C . receive a safety orientation within 24 hours of reporting for duty D . none of the above

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• The test of a towing vessel’s steering gear control system includes each item EXCEPT（）.

  A . a test from the alternative power supply，if installed B . timing the movement of the rudder from hard over to hard over C . verification that the rudder angle indicator shows the actual position of the rudder(s) D . visual inspection of the steering linkage

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• Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency．Drills include all of the following，EXCEPT ______．

  A.testing all alarm and detection systems B.breaking out and using the vessel's emergency equipment C.participation by selected crew members D.one person putting on protective clothing，if the vessel is so equipped

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