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单选题
On a long ocean tow，the bridle should be made up of two equal lengths of（）.
A
chain
B
wire
C
nylon
D
manila
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reduce speedD
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单选题An ocean towing bridle should（）.A
have equal legs of sufficient lengthB
have a large angle between the legsC
be formed on a bight of cable through a ringD
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单选题The choice of length of tow bridle legs is governed by the（）.A
expected towing forcesB
capability of retrieving gearC
freeboard of the unit being towedD
need to reduce yaw
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单选题A tow of 9 barges is made up three abreast by three long. The towboat is faced up to the last barge of the center string. The outer two strings of barges are the（）.A
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two chains of equal lengthB
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单选题In securing deck loads for an ocean tow，drill pipe should be（）.A
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provided with bulwarks at both ends of their bays
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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
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approximately amidships of the vesselD
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单选题When connecting the tow bridle to a tug, the end of the bridle is passed with a（）.A
heaving lineB
shot lineC
high lineD
messenger line
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单选题In towing，heaving lines are used for（）.A
passing a tow bridle to the tugB
passing a messenger lineC
heaving in the tow bridleD
service lines with rocket line throwers
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单选题A tow bridle is attached to the main tow hawser at the（）.A
bight ringB
tow hookC
fishplateD
swivel
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单选题A tow of 9 barges is made up three abreast and three long. The towboat is faced up to the center string which is known as the（）.A
main stringB
push stringC
power stringD
face string
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单选题What is NOT suitable for use in making up the towing rig for a heavy，long ocean tow?（）A
ChainB
RingC
Solid thimbleD
A fishplate
考题
单选题A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.A
is more flexible and has the ability to absorb shock because of its weightB
is less subject to wear and damage from abrasionC
requires little maintenanceD
All of the above
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单选题A tow astern is veering from side to side on its towline. The best way of controlling the action is to（）.A
trim the tow by the bowB
trim the tow by the sternC
list the tow to windwardD
adjust the length of the towing bridle
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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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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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