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.
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：
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.
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
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
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
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A tug is “in irons” when held in a fixed position by（）Athe weight of its tow，its being anchored，or groundedBthe weight of its towing hawser on the bottomCan adverse currentDlack of power or an engine breakdown
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What is the purpose of the intermediate spring?（）AServes as a backup for the main tow hawser in case of failureBProvides weight and flexibility to the total tow makeupCLengthens the main tow hawser to keep the tow in stepDDistributes the towing load
单选题In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.Ainsure that the hawser leads directly aft as it passes over the stern of the towing vesselBincrease the stability of the towing vessel by raising the hawser off the deckCreduce chafing of the towing hawserDprevent fouling of the hawser on deck gear located on the stern of the towing vessel
单选题The catenary（）.Aacts as a reserve length of towing hawser when the tug applies more power，and it dampens the surge effect of the towBgives an approximation of the amount of strain on the towing hawserCis the dip in the towing hawser between the tug and the towDAll of the above
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（）.Aone-half the SWL of the main towing hawserBthree-fourths the SWL of the main towing hawserCthat of the main towing hawserDtwice that of the main towing hawser
单选题Which statement is TRUE concerning hawser towing? （）AThe catenary in a hawser should be sufficient so that the hawser just touches the bottomBThe hawser is of sufficient length for towing when taut between tug and towCIncreasing speed usually increases the catenary in the hawserDShortening the tow hawser generally decreases the maneuverability of the tug
单选题A towing vessel is tripped when（）.Ait is overtaken by the towBit is pulled sideways by the towCthe weight of the towing hawser causes loss of maneuverabilityDthe propeller is fouled by the towing hawser
单选题When towing astern，one way to reduce yawing of the tow is to（）.Atrim the tow by the sternBtrim the tow by the headChave the tow on an even keelDlist the tow on the side it is yawing
单选题A tow bridle is attached to the main tow hawser at the（）.Abight ringBtow hookCfishplateDswivel
单选题Which will NOT reduce yawing of a tow?（）AIncreasing the length of the towing hawserBTrimming the tow by the bowCTrimming the tow by the sternDDrogues put over the stern
单选题What is NOT suitable for use in making up the towing rig for a heavy，long ocean tow?（）AChainBRingCSolid thimbleDA fishplate
单选题A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.Ais more flexible and has the ability to absorb shock because of its weightBis less subject to wear and damage from abrasionCrequires little maintenanceDAll of the above
单选题To clean a dirty fiber towing hawser used in ocean towing，you should（）.Ause lye or other mild detergentBwash it with fresh water，dry and store itCwash it with salt waterDuse cleaning fluid on nylon，dacron and other synthetic lines
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An intermediate spring is（）.Afitted in each leg of the towing bridleBgenerally located between the fishplate and the main towing hawserCsecured at the H bittsDusually made of manila hawser
单选题When towing in an open seaway，it is important to use a towing line（）.Amade only of wire rope，due to possible weather conditionsBthat will have the tow on a crest while your vessel is in a troughCthat will have the tow on a crest while your vessel is on a crestDwith little dip to gain maximum control of the tow
单选题To reduce stress on the towing hawser when towing astern (ocean tow)，the hawser should be （）.Asecured to the aftermost fitting on the towing vesselBjust touching the waterCunderwaterDas short as possible
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（）.Apushed aheadBtowed alongsideCtowed asternDAny of the above
单选题As seen from the tow，what should connect the leading ends of both towing bridle legs to the main towing hawser?（）AA cable clampBA fishplate，flounder，or towing plateCA pad eyeDThe towing bitts
单选题Which statement concerning an automatic towing engine is FALSE? （）AIt automatically maintains tow line tensionBIt prolongs the life of the hawser by distributing chafing as the hawser is paid out and taken inCAs tension on the hawser increases，more line is taken in by the automatic towing engineDAs tension on the hawser decreases，more line is taken in by the automatic towing engine