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
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
相关考题：
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
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
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
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.
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
单选题When towing astern，increased catenary will（）.Aincrease control of the towBprevent the towing vessel from going in ironsCmake the towing vessel less maneuverableDreduce shock stress on the towing hawser
单选题The knot at the end of the heaving line used to pass the towing hawser is called a（）.Amonkey's fistBball or baseball knotCheaving knotDthree strand Turk's head
单选题During the towing of a survival craft，a lookout should be on station to（）.Arelease the towline in an emergencyBhelp the helmsman steerClook for food and waterDcheck the water level in the bilge
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? （）AAbandon the towing vesselBRadio for emergency assistanceCSlip the towline and allow it to run off the drumDSecure all watertight openings on the towing vessel
单选题In towing，chocks are used to（）.Aprotect the towline from chafingBsecure the end of the towline on the tugCstop off the towline while retrieving itDabsorb shock loading on the towline
单选题A “bowline” is used to（）.Ajoin lines of equal sizeBform a temporary eye (loop) at the end of a lineCbe a stopperDkeep a line from fraying
单选题The biggest problem encountered when towing bridle legs are too short is（）.AretrievalBadjusting tensionCexcessive strainDhookup to main towline
单选题An ocean towing bridle whose legs are of equal length，but too short，may（）.Afail to provide spring in the hawserBcause unequal distribution of the load to one legCcause the bridle legs to jump clear of the chocks or fairleadsDNone of the above
单选题A chain bridle is used when towing astern because it（）.Ais easy to connectBprovides an effective catenary and absorbs shock due to its weightCmakes rigging a swivel unnecessaryDprevents the tow from yawing by the drag of the chains in a seaway
单选题A towline should be fastened to（）.Athe chocks at the bow of a towed vesselBthe most forward，centermost point of a towed vessel such asa sturdy bow railCthe mast of a towed sailboatDa secure fitting near the bow of the towed vessel
单选题A towline should be fastened to（）.Athe chocks at the bow of a towed vesselBthe most forward，centermost point of a towed vessel such as a sturdy bow railCthe mast of a towed sailboatDa secure fitting near the bow of the towed vessel
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? （）ALength of the towlineBHeight of the towline connectionCLongitudinal position of the towline connectionDDirection of opposing force
单选题What does the term end-for-end refer to in regard to a wire towing hawser（）.ACutting off the bitter and towing ends of the wire ropeBSplicing two wire ropes togetherCRemoving the wire rope from the drum and reversing it so that the towing end becomes the bitter endDRemoving the wire rope from the drum and turning it over so that the wire bends in the opposite direction when rolled on a drum
单选题The main reason a long towline is used during an oceantow is that（）.Aa margin of safety is provided should the line partBthe towline will wear more evenlyCthere will be less stress on the towlineDa slight increase in speed will be realized
单选题Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.Anot exceed bare steerageway during the transitBtake a strain as soon as you can to control the towCcome up to speed very slowly and maintain a safe speedDcome up to speed quickly，then cut back power considerably to ease the strain
单选题A term used to describe the dip in a towline that acts as a shock absorber is（）.AcatenaryBstepCshock dipDbight
单选题When towing astern what equipment should be stowed ready for use near the towline?（）AFirst aid kitBAxe or cutting torchCFire extinguisherDChafing gear
单选题A tow astern is veering from side to side on its towline. The best way of controlling the action is to（）.Atrim the tow by the bowBtrim the tow by the sternClist the tow to windwardDadjust the length of the towing bridle
单选题If the towline parts，you should（）.Astart towing by pushing aheadBabandon the towing vesselCretrieve the tow bridleDrelieve strain on the retrieving line
单选题It is good practice to use long towlines for ocean tows because the（）.Awear on the towline is equalizedBweight of the towline increases the towing forceCdip in the towline absorbs shock loadsDdanger of overriding is reduced
单选题Tugs sometimes shackle a length of chain in the towline in order to（）.Atake the wear should the towline drag bottomBassure that if the towline is overstressed it will part close to the bridleCprevent the towline from whipping should it partDput spring in the towline