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单选题
In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.
A
shock loading on the tow line is reduce
B
towing speed is improved
C
the vessel is more visible from the tug
D
the catenary of the tow line is reduced
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更多 “单选题In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.A shock loading on the tow line is reduceB towing speed is improvedC the vessel is more visible from the tugD the catenary of the tow line is reduced” 相关考题
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
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
考题
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 aheadB.A power-driven vessel，not towingC.A barge being pushed aheadD.Either answer A or answer B
考题
A vessel brought alongside should be fended off the towing vessel by ______.A.crew members using their armsB.crew members using the strong muscles of their legsC.fendersD.No fending is necessary due to the rugged construction of most towing vessels
考题
A tug would NOT assist a ship to steer if the tug is made up to the large vessel ______.A.by a tow line ahead of the vesselB.forward on either bow of the vesselC.approximately amidships of the vesselD.on the vessel’s quarter
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.
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
考题
单选题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 aheadB
a power-driven vessel，not towingC
a barge being pushed aheadD
either answer A or answer B
考题
单选题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
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
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
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
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
考题
单选题A vessel brought alongside should be fended off the towing vessel by（）.A
crew members using their armsB
crew members using the strong muscles of their legsC
fendersD
No fending is necessary due to the rugged construction of most towing vessels
考题
单选题How do the height and location of a tug’s towing bitts relate to the danger of tripping?（）A
The further forward and closer to amidships the more readily the tug will tripB
Placement further aft permits more effective pulling，better steering and eliminates the danger of trippingC
Installing the bitts down low lowers the center of gravityD
The height and position of towing bitts has no significance
考题
单选题A tug would NOT assist a ship to steer if the tug is made up to the large vessel（）.A
by a tow line ahead of the vesselB
forward on either bow of the vesselC
approximately amidships of the vesselD
on the vessel's quarter
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
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
考题
单选题A tug is towing three manned barges in line in fog. The first vessel of the tow should sound （）.A
no fog signalB
one short blastC
one prolonged and three short blastsD
one prolonged，one short，and one prolonged blast
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
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
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
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
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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