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In towing，chocks are used to ______.
A.protect the towline from chafing
B.secure the end of the towline on the tug
C.stop off the towline while retrieving it
D.absorb shock loading on the towline
参考答案
更多 “ In towing，chocks are used to ______.A.protect the towline from chafingB.secure the end of the towline on the tugC.stop off the towline while retrieving itD.absorb shock loading on the towline ” 相关考题
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
During the towing of a survival craft，a lookout should be on station to ______．A.release the towline in an emergencyB.help the helmsman steerC.look for food and waterD.check the water level in the bilge
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
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.
考题
Which two statements are true about the protocols that are used for transmitting voice traffic？（）A、RTP multiplexing is used to keep multiple phone conversations separateB、RTP provides end-to-end delivery services for voice trafficC、UDP is used to ensure a reliable transmission from sender to receiverD、RTP is used to provide resource reservation for the voice streamE、UDP provides multiplexing
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The knot at the end of the heaving line used to pass the towing hawser is called a（）.A
monkey's fistB
ball or baseball knotC
heaving knotD
three strand Turk's head
考题
单选题During the towing of a survival craft，a lookout should be on station to（）.A
release the towline in an emergencyB
help the helmsman steerC
look for food and waterD
check the water level in the bilge
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In towing，chocks are used to（）.A
protect the towline from chafingB
secure the end of the towline on the tugC
stop off the towline while retrieving itD
absorb shock loading on the towline
考题
单选题A “bowline” is used to（）.A
join lines of equal sizeB
form a temporary eye (loop) at the end of a lineC
be a stopperD
keep a line from fraying
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A towline should be fastened to（）.A
the chocks at the bow of a towed vesselB
the most forward，centermost point of a towed vessel such asa sturdy bow railC
the mast of a towed sailboatD
a secure fitting near the bow of the towed vessel
考题
单选题A towline should be fastened to（）.A
the chocks at the bow of a towed vesselB
the most forward，centermost point of a towed vessel such as a sturdy bow railC
the mast of a towed sailboatD
a secure fitting near the bow of the towed vessel
考题
单选题A towing vessel becomes tripped while towing on a hawser astern. What factor is MOST important when assessing the risk of capsizing? （）A
Length of the towlineB
Height of the towline connectionC
Longitudinal position of the towline connectionD
Direction of opposing force
考题
单选题What does the term end-for-end refer to in regard to a wire towing hawser（）.A
Cutting off the bitter and towing ends of the wire ropeB
Splicing two wire ropes togetherC
Removing the wire rope from the drum and reversing it so that the towing end becomes the bitter endD
Removing the wire rope from the drum and turning it over so that the wire bends in the opposite direction when rolled on a drum
考题
单选题The main reason a long towline is used during an oceantow is that（）.A
a margin of safety is provided should the line partB
the towline will wear more evenlyC
there will be less stress on the towlineD
a slight increase in speed will be realized
考题
单选题Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.A
not exceed bare steerageway during the transitB
take a strain as soon as you can to control the towC
come up to speed very slowly and maintain a safe speedD
come up to speed quickly，then cut back power considerably to ease the strain
考题
单选题A term used to describe the dip in a towline that acts as a shock absorber is（）.A
catenaryB
stepC
shock dipD
bight
考题
单选题When towing astern what equipment should be stowed ready for use near the towline?（）A
First aid kitB
Axe or cutting torchC
Fire extinguisherD
Chafing gear
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A tow that veers to the side on the end of the towline is said to（）.A
yawB
surgeC
swayD
swing
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It is good practice to use long towlines for ocean tows because the（）.A
wear on the towline is equalizedB
weight of the towline increases the towing forceC
dip in the towline absorbs shock loadsD
danger of overriding is reduced
考题
单选题Tugs sometimes shackle a length of chain in the towline in order to（）.A
take the wear should the towline drag bottomB
assure that if the towline is overstressed it will part close to the bridleC
prevent the towline from whipping should it partD
put spring in the towline
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