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（）.

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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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• When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.

  A . Both towheads will tend to drift apart，and the overtaking vessel will be slowed down B . Both towheads will tend to drift together，and the overtaking vessel will be slowed down C . Both towheads will tend to drift apart，and the overtaken vessel will be slowed down D . Both towheads will tend to drift together，and the overtaken vessel will be slowed dow

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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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• 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 the named port is one at which no tugs are ever obtainable，and the chartered vessel can not，by reason of her size，reach that port without the assistance of tugs，the port is（）.

  A . safe B . not safe C . good D . not good

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• What determines if a vessel is restricted in her ability to maneuver?（）.

  A . Whether or not all of the vessel's control equipment is in working order B . The vessel's draft in relation to the available depth of water C . Whether the nature of the vessel's work limits maneuverability required by the Rules D . Whether or not the vessel is the give-way vessel in a meeting situatio

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• If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.

  A . change course B . slow down C . heave to D . adjust tow line length

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• A towing vessel’s capability is BEST measured by horsepower，bollard pull，maneuverability and（）.

  A . displacement B . stability C . towrope pull D . propeller desig

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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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• Sometimes the contract（）that the lump sum freight must be paid in advance and will not be returnable even if the vessel and／or her cargo are lost.

  A . provide B . provides C . providing D . be provided

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• In a crossing situation，a stand-on vessel which is forced to take action in order to avoid collision with a vessel on her own port side shall，if possible，avoid（）.

  A . turning to port B . turning to starboard C . decreasing speed D . increasing speed

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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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• Vessel towing with the current shall（）tow more than two boats and they must be towed alongside.

  A . at times B . at any time C . at no time D . at moment

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• If necessary to avoid collision or allow more time to（）the situation，a vessel shall slacken her speed or take all way off by stopping or reversing her means of propulsion．

  A . access B . process C . profess D . rece

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• If your vessel is underway in fog and you hear one prolonged and three short blasts，this is a （）.

  A . vessel not under command B . sailing vessel C . vessel being towed (manned) D . vessel being towed (unmanned)

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• When joining a vessel，do not forget personal documents and your spectacles，and（）if necessary.

  A . drug B . remedy C . medicine D . healer

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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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• 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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• A vessel hearing a fog signal forward of her beam has not determined if risk of collision exists. She shall reduce speed to（）.

  A . moderate speed B . safe speed C . half speed D . bare steerageway

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• If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.

  A . The towing line between the two vessels should be clear of the water B . The towing line should be taut at all times between the vessels C . There should be a catenary so the line dips into the water D . None of the above

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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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• 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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