单选题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 towlineB Height of the towline connectionC Longitudinal position of the towline connectionD Direction of opposing force

考题 A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when ______.A.directly astern and pushing the towB.towing on a hawserC.towing alongside and parallel to the vessel it is towingD.towing on the hip

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考题 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 vesselB.the lights for a vessel restricted in its ability to maneuverC.sidelights，stern light and towing lightD.All of the above

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考题 An intermediate spring is ______.A.fitted in each leg of the towing bridleB.generally located between the “fishplate” and the main towing hawserC.secured at the “H” bittsD.usually made of manila hawser

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考题 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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考题 If practical, when shall a manned vessel being towed sound her fog signal?______.A.Immediately before the towing vessel sounds hersB.Immediately after the towing vessel sounds hers.C.As close to the mid-cycle of the towing vessel’s signals as possibleD.At any time as long as the interval is correct

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考题单选题When towing astern，increased catenary will（）.A increase control of the towB prevent the towing vessel from going in ironsC make the towing vessel less maneuverableD reduce shock stress on the towing hawser

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考题单选题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 vesselB Radio for emergency assistanceC Slip the towline and allow it to run off the drumD Secure all watertight openings on the towing vessel

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考题单选题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 vesselB the lights for a vessel restricted in its ability to maneuverC sidelights，stern light and towing lightD All of the above

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考题单选题Which vessel is NOT classified as “restricted in her ability to maneuver” （）.A A vessel picking up a navigation markB A vessel transferring cargo while underwayC A vessel whose anchor is fouledD A vessel in a towing operation that restricts the ability of the vessel and her tow to change their course

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考题单选题In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.A insure that the hawser leads directly aft as it passes over the stern of the towing vesselB increase the stability of the towing vessel by raising the hawser off the deckC reduce chafing of the towing hawserD prevent fouling of the hawser on deck gear located on the stern of the towing vessel

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考题单选题The catenary（）.A acts as a reserve length of towing hawser when the tug applies more power，and it dampens the surge effect of the towB gives an approximation of the amount of strain on the towing hawserC is the dip in the towing hawser between the tug and the towD All of the above

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考题单选题A vessel，which does not normally engage in towing operations，is towing a vessel in distress.She（）.A need not show the lights for a vessel engaged in towing，if it is impractical to do soB may show the lights for a vessel not under commandC must show a yellow light above the stern lightD must show the lights for a vessel towing

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考题单选题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 hawserB three-fourths the SWL of the main towing hawserC that of the main towing hawserD twice that of the main towing hawser

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考题单选题Which statement is TRUE concerning hawser towing? （）A The catenary in a hawser should be sufficient so that the hawser just touches the bottomB The hawser is of sufficient length for towing when taut between tug and towC Increasing speed usually increases the catenary in the hawserD Shortening the tow hawser generally decreases the maneuverability of the tug

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考题单选题A vessel towing where the tow prevents her from changing course shall carry（）.A only the lights for a vessel towingB only the lights for a vessel restricted in her ability to maneuverC the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuverD the lights for a towing vessel and the lights for a vessel not under command

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考题单选题A towing vessel is tripped when（）.A it is overtaken by the towB it is pulled sideways by the towC the weight of the towing hawser causes loss of maneuverabilityD the propeller is fouled by the towing hawser

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考题单选题Good seamanship while towing in heavy weather requires all of the following EXCEPT（）.A reducing speed to reduce surging on the towlineB lashing down or stowing all loose gearC dogging all hatches and watertight doorsD streaming all of your towing hawser

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考题单选题What does the term end-for-end refer to in regard to a wire towing hawser（）.A Cutting off the bitter and towing ends of the wire ropeB Splicing two wire ropes togetherC Removing the wire rope from the drum and reversing it so that the towing end becomes the bitter endD Removing the wire rope from the drum and turning it over so that the wire bends in the opposite direction when rolled on a drum

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考题单选题A single towing light will be carried above a vessel’s sternlight（）.A only if she is towing asternB only if the tow exceeds 200 metersC at any time when towingD if the towing vessel is part of a composite unit

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考题单选题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 vesselB the lights for a vessel restricted in its ability to maneuverC sidelights，sternlight and towing lightD All of the above

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考题单选题A power-driven vessel，when towing astern，shall show（）.A two towing lights in a vertical lineB a towing light in a vertical line above the sternlightC two towing lights in addition to the sternlightD a small white light in lieu of the sternlight

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考题单选题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 vesselB the lights for a vessel restricted in her ability to maneuverC sidelights，stern light，and towing lightD All of the above

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考题单选题An intermediate spring is（）.A fitted in each leg of the towing bridleB generally located between the fishplate and the main towing hawserC secured at the H bittsD usually made of manila hawser

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考题单选题When towing in an open seaway，it is important to use a towing line（）.A made only of wire rope，due to possible weather conditionsB that will have the tow on a crest while your vessel is in a troughC that will have the tow on a crest while your vessel is on a crestD with little dip to gain maximum control of the tow

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考题单选题To reduce stress on the towing hawser when towing astern (ocean tow)，the hawser should be （）.A secured to the aftermost fitting on the towing vesselB just touching the waterC underwaterD as short as possible

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考题单选题As seen from the tow，what should connect the leading ends of both towing bridle legs to the main towing hawser?（）A A cable clampB A fishplate，flounder，or towing plateC A pad eyeD The towing bitts

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考题单选题Which statement concerning an automatic towing engine is FALSE? （）A It automatically maintains tow line tensionB It prolongs the life of the hawser by distributing chafing as the hawser is paid out and taken inC As tension on the hawser increases，more line is taken in by the automatic towing engineD As tension on the hawser decreases，more line is taken in by the automatic towing engine

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