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单选题
The tug can tow and push（）（超级油轮 ）into position.
A
barge
B
ULCC
C
dredger
D
LNG carrier
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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.
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A tow can override its tug as a result of ______.A.a mechanical breakdown on the tugB.adverse tidal current conditionsC.the tug reducing its speedD.All of the above
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A tug may be in danger of tripping when ______.A.towed sideways by an overwhelming force on the towlineB.her tow moves parallel to and forward on either side of the tugC.the tow is no longer directly astern but moves up on her quarterD.All of the above
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You are pushing a tow ahead，at high speed，near the right hand bank of a canal．The forces affecting your towboat and tow will tend to ______．A.Push both the head of the tow and the stern of the towboat away from the right hand bankB.Push the head of the tow away from，and pull the stern of the towboat into，the right hand bankC.Pull both the head of the tow and the stern of the towboat into the right hand bankD.Pull the head of the tow into，and push the stern of the towboat away from，the right hand bank
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
You intend to tow a barge with one tug and expect continuous high winds from the north．To reduce the yaw of your tow，you should ______．A.reduce the draft of the bargeB.shorten one leg of the bridleC.place bulky deck loads as far aft as possibleD.trim the barge down by the bow
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
最大的货船是油轮。（）A、The largest cargo ship is the tankerB、The largest cargo ship is the container ship .C、The largest cargo ship is the bulk carrier.D、The largest cargo ship is the tug.
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 tug is approaching a broken down steamer in moderately heavy weather preparing to take it in tow. In most cases the（）.A
steamer will drift stern downwindB
tug will drift faster than the steamerC
tug should approach stern toD
tug should approach from downwind
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A tug may be in danger of tripping when（）.A
towed sideways by an overwhelming force on the towlineB
her tow moves parallel to and forward on either side of the tugC
the tow is no longer directly astern but moves up on her quarterD
All of the above
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The condition where a ship on the end of a tow line is riding a wave crest at the same time as its tug rides a wave crest is known as riding in（）.A
synchronismB
harmonyC
checkD
step
考题
单选题Apparent wind speed blowing across a vessel under tow can be measured by a(n)（）.A
barometerB
wind vaneC
anemometerD
thermometer
考题
单选题You intend to tow a barge with one tug and expect continuous high winds from the north. To reduce the yaw of your tow，you should（）.A
reduce the draft of the bargeB
shorten one leg of the bridleC
place bulky deck loads as far aft as possibleD
trim the barge down by the bow
考题
单选题A tow can override its tug as a result of（）.A
a mechanical breakdown on the tugB
adverse tidal current conditionsC
the tug reducing its speedD
All of the above
考题
单选题You are under sail and overtaking a tug and tow.Which action is correct（）.A
The power-driven tug must maneuver to avoid collisionB
You must maneuver to avoid the tug and towC
You must maneuver to avoid collision only if the tug is to leeward and the wind is on your port sideD
Both vessels are required to maneuver to avoid collision
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