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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.
参考答案
更多 “ 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. ” 相关考题
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 "in irons" when held in a fixed position by ______.A.the weight of its tow，its being anchored，or groundedB.the weight of its towing hawser on the bottomC.an adverse currentD.lack of power or an engine breakdown
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
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 tug is “in irons” when held in a fixed position by（）A
the weight of its tow，its being anchored，or groundedB
the weight of its towing hawser on the bottomC
an adverse currentD
lack of power or an engine breakdown
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
考题
单选题What is the purpose of the intermediate spring?（）A
Serves as a backup for the main tow hawser in case of failureB
Provides weight and flexibility to the total tow makeupC
Lengthens the main tow hawser to keep the tow in stepD
Distributes the towing load
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
考题
单选题To clean a dirty fiber towing hawser used in ocean towing，you should（）.A
use lye or other mild detergentB
wash it with fresh water，dry and store itC
wash it with salt waterD
use cleaning fluid on nylon，dacron and other synthetic lines
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If the towline parts，you should（）.A
start towing by pushing aheadB
abandon the towing vesselC
retrieve the tow bridleD
relieve strain on the retrieving line
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
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
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
考题
单选题If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.A
pushed aheadB
towed alongsideC
towed asternD
Any of the above
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
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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