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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 trip
B
Placement further aft permits more effective pulling，better steering and eliminates the danger of tripping
C
Installing the bitts down low lowers the center of gravity
D
The height and position of towing bitts has no significance
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更多 “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” 相关考题
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考题
Before leaving port on an ocean tow，a tug captain should assure himself of all the following EXCEPT ______.A.the towing hawser can be released quickly in an emergencyB.the correct navigation lights are rigged and operable on the tug and towC.an insurance underwriter has prepared a pre-sailing surveyD.a pick-up wire has been rigged on the tow in case of a breakaway.
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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How are you，Bob？—greetings/How do you do？Hello!Hi!What’s up？（）TedA、How are you？B、I’m fine.Thank you.C、How do you do？D、Nice to mee tyou.
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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单选题An advantage of the Christmas Tree towing method is to（）.A
increase the towing hawser's catenary and provide more springB
reduce catenary，allow operation in shallower water，and to release one barge without breaking up the entire towC
enable one tug and its crew without any outside assistance to make up or break down the towD
provide rapid delivery of logs from the northwestern United States to Hawaiian sawmills
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How are you，Bob？—greetings/How do you do？Hello!Hi!What’s up？（）TedA
How are you？B
I’m fine.Thank you.C
How do you do？D
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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
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To reduce the amount of catenary you may（）.A
shorten the hawser or increase the tug's speedB
lengthen the hawser or reduce the tug's speedC
place your tug in ironsD
make a sharp turn
考题
单选题A towing hook may be released from the（）.A
tug's engineroom or the bowB
pilot house or aft steering stationC
forecastleD
towing bitts by reaching over and releasing a lever
考题
单选题Which emergency equipment should you keep near the towing bitts（）.A
A self-contained breathing apparatusB
A boat hook and a spanner wrenchC
A fire ax and/or cutting torchD
A Stokes litter basket
考题
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
考题
单选题Which emergency equipment should you keep near the towing bitts? （）A
A self-contained breathing apparatus (SCBA)B
A boat hook and a spanner wrenchC
A fire ax and/or cutting torchD
A Stokes litter basket
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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