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The choice of length of tow bridle legs is governed by the ______．
A.Expected towing forces
B.Capability of retrieving gear
C.Freeboard of the unit being towed
D.Need to reduce yaw
参考答案
更多 “ 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 ” 相关考题
考题
One advantage of chain over wire rope for a tow bridle is that chain ______.A.is better suited for inland towingB.resists damage from chafingC.handles more easilyD.equalizes towing forces better
考题
An ocean towing bridle whose legs are of equal length，but too short，may ______.A.fail to provide spring in the hawserB.cause unequal distribution of the load to one legC.cause the bridle legs to jump clear of the chocks or fairleadsD.None of the above
考题
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
考题
With a large tow astern，there is immediate danger to the tug in the event of the ______．A.Tug losing powerB.Tow line partingC.Bridle twistingD.Tow broaching
考题
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
考题
A bridle for an ocean tow consists of ______.A.two chains of equal lengthB.a single nylon pendant rove through a heavy ring free to move on the pendantC.two long legs of wire rope shackled to a fishplateD.a single length of heavy chain with both ends secured on deck to welded pad eyes
考题
A chain bridle is used when towing astern because it ______.A.is easy to connectB.provides an effective catenary and absorbs shock due to its weightC.makes rigging a swivel unnecessaryD.prevents the tow from yawing by the drag of the chains in a seaway
考题
单选题One advantage of chain over wire rope for a tow bridle is that chain（）.A
is better suited for inland towingB
resists damage from chafingC
handles more easilyD
equalizes towing forces better
考题
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
never be made up of chain
考题
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
考题
单选题You see a vessel carrying a black diamond which indicates a（）.A
vessel towing asternB
barge pushed aheadC
vessel towing astern only when the length of her tow exceeds 200 metersD
this signal does not exist in international waters
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A bridle for an ocean tow consists of（）.A
two chains of equal lengthB
a single nylon pendant rove through a heavy ring free to move on the pendantC
two long legs of wire rope shackled to a fishplateD
a single length of heavy chain with both ends secured on deck to welded pad eyes
考题
单选题The biggest problem encountered when towing bridle legs are too short is（）.A
retrievalB
adjusting tensionC
excessive strainD
hookup to main towline
考题
单选题An ocean towing bridle whose legs are of equal length，but too short，may（）.A
fail to provide spring in the hawserB
cause unequal distribution of the load to one legC
cause the bridle legs to jump clear of the chocks or fairleadsD
None of the above
考题
单选题If the towing bridle legs are not of equal length（）.A
excessive strain is placed on the shorter legB
the shorter leg may failC
the longer leg is slackD
All of the above
考题
单选题A chain bridle is used when towing astern because it（）.A
is easy to connectB
provides an effective catenary and absorbs shock due to its weightC
makes rigging a swivel unnecessaryD
prevents the tow from yawing by the drag of the chains in a seaway
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
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
考题
单选题When towing astern，one way to reduce yawing of the tow is to（）.A
trim the tow by the sternB
trim the tow by the headC
have the tow on an even keelD
list the tow on the side it is yawing
考题
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
考题
单选题A tow bridle is attached to the main tow hawser at the（）.A
bight ringB
tow hookC
fishplateD
swivel
考题
单选题Which will NOT reduce yawing of a tow?（）A
Increasing the length of the towing hawserB
Trimming the tow by the bowC
Trimming the tow by the sternD
Drogues put over the stern
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
考题
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
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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