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单选题
towing line()
A

回头缆

B

拖缆

C

横缆

D

尾缆


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考题 As operator of a 199 GT towing vessel sailing foreign,it shall be your duty to enter in the Official Logbook or other permanent record ______.A.all information contained on the barge's Certificate of InspectionB.the condition of all towing gear to be usedC.all navigational aids to be usedD.the barges load line and draft readings

考题 The disadvantage of using a heaving line to pass a towline is that ______.A.it increases the likelihood of collision between the towing vessel and the disabled vesselB.recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towlineC.the monkey fist may injure someoneD.it may reduce the catenary and increase yawing

考题 A vessel towing a barge astern would show,at the stern ______.A.only a stern lightB.a towing light above the stern lightC.two towing lights in a vertical lineD.two white lights in a vertical line

考题 Take the tug towing line to (),then heave away easy.A、captainB、windlassC、carpenterD、capstan

考题 Lower the()to the tug.A、towing lineB、slip lineC、breast lineD、spring line

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The disadvantage of using a heaving line to pass a towline is that().A it increases the likelihood of collision between the towing vessel and the disabled vesselB recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towlineC the monkey fist may injure someoneD it may reduce the catenary and increase yawing

考题 单选题A vessel towing a barge astern would show,at the stern().A only a stern lightB a towing light above the stern lightC two towing lights in a vertical lineD two white lights in a vertical line

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--Let go the towing line. –Yes ,I will ().A let go itB let go to itC let it goD let go for it

考题 单选题Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to().A be fitted with a positive fuel shut-off valve located at the tankB have a shut-off valve at the top of the tankC have a gate valve easily accessible in the space where the tank is locatedD have a drain cock at the lowest point in the fuel line

考题 单选题Take tug’s towing line on ().A windlassB capstanC ballD moorings

考题 单选题A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show ().A three masthead lights in a vertical line instead of either the forward or after masthead lightB two masthead lights in a vertical line instead of either the forward or after masthead lightsC two towing lights in a vertical line at the sternD a small white light aft of the funnel

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In towing,heaving lines are used for().A passing a tow bridle to the tugB passing a messenger lineC heaving in the tow bridleD service lines with rocket line throwers

考题 单选题If the situation arose where it became necessary to tow a disabled vessel,which statement is TRUE concerning the towing line?().A The towing line between the two vessels should be clear of the waterB The towing line should be taut at all times between the vesselsC There should be a catenary so the line dips into the waterD None of the above

考题 单选题A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you,you should secure the line().A to the base of the foremastB to the forward-most bittsC to the forward part of the deckhouseD at the stern

考题 单选题A power-driven vessel,when towing astern,shall show().A two towing lights in a vertical lineB a towing light in a vertical line above the sternlightC two towing lights in addition to the sternlightD a small white light in lieu of the sternlight

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 disadvantage of using three strand nylon line for towing is its().A inherent weaknessB tendency to rot if left dampC danger to crew if it partsD strength and shock absorbing abilities

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The line-throwing appliance provided on board ship is().A for the saving of lifeB for fire-fightingC for mooring purposeD for towing purpose

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A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the().A towing vessel is less than 50 metersB towing vessel is greater than 50 metersC tow is less than 200 metersD tow is greater than 200 meters

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