船舶索义具及保养.doc

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1、船舶索具及保养1、_ are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms bAShrouds BKing postsCStays DTurnbuckles2、_ are used for anchor gear in marine work where the chains must withstand the corrosive effects of seawater aAChains BWiresCRopes DLines3、_ p

2、rovide athwartship support for the mast or king posts aAShrouds BKing postsCStays DTurnbuckles4、A “sheepshank” is used to _dAkeep a line from frayingBjoin lines of unequal sizeCstop off a lineDshorten a line5、A 6x12，two-inch wire rope has _ cA12 strands and a two-inch diameterB12 strands and a two-i

3、nch circumferenceC6 strands and a two-inch diameterD6 strands and a two-inch circumference6、A 6x19 wire rope would be _ cA6 inches in diameter and 19 fathoms longB6 inches in circumference with 19 strandsC6 strands with 19 wires in each strandD19 strands with 6 wires in each strand7、A block and tack

4、le is“rove to advantage”This means that the _ cAblocks have been overhauledBhauling parts of two tackles are attachedChauling part leads through the movable blockDhauling part leads through the standing block8、A cargo boom is a _ aAdouble sized mattress consists of more than 890 coilsBspar extending

5、 from a mast or a king postCflap（Becker rudder）can be fitted to the rudders trailing edgeDbridle arrangement having a long beam of the length of the container9、A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain _ dAis more flexible and has the ability to abso

6、rb shock because of its weightBis less subject to wear and damage from abrasionCrequires little maintenanceDAll of the above10、A chain bridle is used when towing astern because it _ bAIs easy to connectBProvides an effective catenary and absorbs shock due to its weightCMakes rigging a swivel unneces

7、saryDPrevents the tow from yawing by the drag of the chains in a seaway11、A Chinese stopper（two lines）will hold best when you _ bAfasten the bitter ends to the mooring line with half hitchesBtwist the ends together and hold them in the direction of the pullCtwist the ends together and hold them in t

8、he direction opposite to the pullDtwist the ends together and hold them at right angles to the mooring line12、A common class of wire rope is the 6X37 classWhat does the 37 represent _ dANumber of wires in the inner coreBNumber of strands per wire ropeCTensile strength of the wireDNumber of wires per

9、 strand13、A monkey fist is found on a _ aAHeaving line BLead lineCManrope DMooring line14、A natural fiber rope can be ruined by dampness because it may _ aArot BshrinkCstretch Dunlay15、A pelican hook _ aACan be released while under strainBIs used for boat fallsCIs used for extra heavy loadsDIs used

10、for light loads only16、A rope ladder with wooden rungs is a _ cAdrop ladderBlife ladderCJacobs ladderDjury ladder17、A serving mallet is used in _ aAcovering wire or fiber ropeBforcing fids into a lineCdogging hatchesDsplicing lines18、A sheepshank is used to _ dAkeep a line from frayingBjoin lines of

11、 unequal sizeCstop off a lineDshorten a line19、A shepherds crook is used to _ bAlower spring buoys into the waterBfind an anchor after the buoy has been lostCtransfer a pennant wire to the anchor handling boatDclean chain as it is hauled into the rig20、A single-screw vessel going ahead tends to turn

12、 more rapidly to port because of propeller _ cAdischarge currentBsuction currentCsidewise forceDthrust21、A snatch block is a _ cAblock used only with manila ropeBchock rollerChinged blockDstrong block used for short，sharp pulls22、A stage should only be rigged _ cAover the bow or stern of a vesselBov

13、er the flat sides of a vesselCover the open waterDover the dockside23、A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a _ cAriding pawlBbucklerCdevils clawDlocking ring24、Chafing gear is used to _ cAanchor the boatBpick up heavy loadsCprotect

14、fiber rope from abrasionDstrengthen mooring lines25、Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as _dACoilingBFakingCFlemishingDThoroughfooting26、How are riveted lap joints made watertight _

15、 cAThe faying surfaces are coated with white lead（or similar product）before the rivets are setBA sealing weld bead of 1/8 or less pitch is run along the plate edgeCThe plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plateDA properly riveted joint

16、 will be watertight; any leakage is stopped by setting up on the rivets27、How could lashing gear used aboard Ro-Ro vessels be stowed when not in use _ dADrape along bracketsBHang vertically in a sheltered areaCStow in bins at hatch coming sideDAll of the above28、How is the size of chain determined _

17、 bALength of link in inchesBDiameter of metal in link in inches or centimetersCLinks per fathomDWeight of stud cable in pounds29、If kinking results while wire rope is being coiled clockwise，you should _cAcoil it counterclockwiseBnot coil itCtake a turn underDtwist out the kinks under a strain30、If y

18、ou were to pass a stopper on a wire rope，what should the stopper be made of _ dAWireBManilaCNylonDChain31、Instead of whipping an end of a line，a temporary means of preventing the line from unraveling is to tie a _ cAbecket bendBblackwall hitchCfigure-eight knotDsquare knot32、Manila slings should not

19、 be used to load _ cAcottonBlumberCsteelDtires33、Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgsWhich of the following tackles would you use _ bAGun tackleBLuff tackleCTwo-fold tackleDDouble-luff tackle34、Nylon line is better suited than manila fo

20、r _ bATowing alongsideBTowing asternCHolding knots and splicesDResisting damage from chemicals35、Nylon line is NOT suitable for _ bAtowingBlashingsCstoppersDmooring lines36、On a long ocean tow，the bridle should be made up of two equal lengths of _ aAChainBWireCNylonDManila37、On an anchor windlass，th

21、e wheel over which the anchor chain passes is called a _ CABrake compressor wheelBDevils clawCWildcatDWinchhead38、One advantage of chain over wire rope for a tow bridle is that chain _ BAis better suited for inland towingBresists damage from chafingChandles more easilyDequalizes towing forces better

22、39、Peck and Hale gear is used most commonly for securing _ AAAutomobilesBBaled cargoCLarge wooden cratesDPalletized cargo40、Please tell the stevedores to load the cargo _ according to the respective figures DAtightlyBcloselyCsecurelyDstrictly41、Ropes or wires attached to derricks to prevent them fro

23、m swinging during cargo handling operations are _ aAPreventersBSide ropesCStaysDGuide lines42、Separating both blocks of a tackle to prepare it for reuse is called _ cAChockablockingBFleetingCOverhaulingDTwo blocking43、The annual change in _ is 0.2 degree aAMagnetic VariationBMarine InsuranceCMaritim

24、e AccidentDMean High Water Spring44、The best method for tying two lines of the same size together is by using a _ dABecket bendBTwo bowlinesCSingle carrick bendDSquare knot45、The biggest problem encountered when towing bridle legs are too short is _cARetrievalBAdjusting tensionCExcessive strainDHook

25、up to main towline46、The catenary in a towline is _ bAA short bridleBThe downward curvature of the hawserCAnother name for a pelican hookDUsed to hold it amidships47、The circular steel structure installed around the propeller of a towboat is the _ aAnozzleBshroudCstrutDhood48、The head block is locat

26、ed _ bAAt the base of the boomBAt the head of the boomCAt the head of the mastDOn top of the jack staff49、The hitch used to secure the standing part of a gantline to the horns of a stage is a _ aAMarlinespike hitchBClove hitchCBlackwall hitchDKillick hitch50、The knot at the end of the heaving line u

27、sed to pass the towing hawser is called a _ aAmonkeys fistBball or baseball knotCheaving knotDthree strand Turks head51、The knot used to join two lines or two large hawsers for towing is called a _ bASquare knotBCarrick bendCSheet bendDBowline52、The latch of a safety hook _ bAIncreases the strength

28、of the hookBPrevents the sling ring from coming out of the hook if the strain is abruptly easedCPrevents the sling ring from coming out of the hook if there is a strain on the sling ringDAll of the above53、The main advantage of a Chinese stopper over the one line stopper is that it _ aAWill not jam

29、on the mooring lineBIs strongerCIs easier to use when under heavy tensionDIs safer to use when under heavy tension54、The only wire rope termination which may be made in the field is _ dAswaged socketBthimbled mechanical spliceChand spliceDspelter poured and resin sockets55、The recessed areas on a wi

30、ldcat are called _ cAPawlsBSocketsCPocketsDDevils claws56、The rolling hitch could be used to _ dAjoin two lines of different sizesBjoin two lines of equal sizesCadd strength to a weak spot in a lineDact as a stopper to transfer a line under strain57、The rope which is rove from the truck to be used w

31、ith a bosn chair is called a _ aAgantlineBlife lineCstropDwhip58、The splice designed to pass easily through a block is called a（n）_ cAeye spliceBshort spliceClong spliceDblock splice59、The square knot is used for _ bAforming temporary eyes in linesBjoining two lines of equal sizeCkeeping line from u

32、nlaying or frayingDjoining two lines of different size60、The step of a pilot ladder which prevents the ladder from twisting is the _dAProof barBShifting barCLong barDSpreader61、The strongest of the natural fiber ropes is _ cANylonBDacronCManilaDSisal62、The tackle that raises and lowers the boom is _

33、 cAthe cargo fallBThe cargo hoisting wire ropeCthe topping liftDthe cargo whip63、The use of _ between bags may lead to chafe and tearing of the bags cAstrips of burlapBheavy paperCdunnage boardsDstrips of rope yarn64、To belay a line means to _ dACoil it downBHeave it tautCStow it belowDSecure it to

34、a cleat65、Tugs sometimes shackle a length of chain in the towline in order to _ dATake 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 towline66、Under identical load

35、 conditions，nylon，when compared with natural fiber line，will stretch _ cALess and have less strengthBMore and have less strengthCMore and have greater strengthDLess and have greater strength67、What happens to the pulling power of a winch when retrieving wire rope _ bAIt increasesBIt decreasesCIt rem

36、ains the sameDIt fluctuates，depending on the gearing system68、What is a step in attaching a poured metal socket to a wire rope _ aAEtch the wire with acidBInstall a wire seizing on the wire that will be inside the socketCEnsure the fiber core is well lubricatedDPour molten babbitt metal into the soc

37、ket69、What is meant by the term two-blocked _ aAThe bottom block touches the top blockBThe line has jumped the sheavesCThere are turns in the fallDYou have two blocks70、What is normally used to pass a mooring line to a dock _ cADistance lineBGantlineCHeaving lineDTag line71、What is NOT running riggi

38、ng _ bADownhaulBBackstayCHalyardDSheet72、What is the bow type anchor shackle primarily used for _ dAChain to chain connectionsBChain to anchor connectionsCKenter link to anchor connectionsDWire rope connections73、What is the main purpose of dunnage _ bATo act as ballast for light vesselsBTo provide

39、ventilation and drainage for cargoCTo secure the tarpaulins in placeDTo support weakened bulkheads74、What is the main reason to slush a wire rope _ bAKeep the wire soft and manageableBLubricate the inner wires and prevent wearCPrevent kinkingDPrevent rotting75、What material may be substituted for zi

40、nc when making a poured metal socket ending to a wire rope _ dALeadBBabbittCSolderDNothing76、What should you do to a line to prevent fraying where it passes over the side of the vessel _ cAWorm that part of the lineBSplice that part of the lineCCover it with chafing gearDInstall a cleat77、What type

41、of line melts easiest _ dAWireBDacronCNylonDPolypropylene78、When a line is laid down in loose，looping figure-eights，it is said to be _aAFakedBFlemishedCCoiledDChined79、When a line is subject to wear where it passes through a mooring chock，it should be _ cAwormed，parceled，and servedBwrapped with heav

42、y tapeCwrapped with chafing gearDwrapped in leather80、When cutting wire rope，seizings are put on each side of the cutThe seizings prevent the wire from unlaying and also _ aAMaintain the original balance of the tension in the wires and strandsBPrevent moisture from entering between the wires at the

43、cut endCForces lubricant from the core to protect the raw，cut endDAll of the above81、When passing a hawser to the dock you would first use what line _bAGantlineBHeaving lineCPreventerDWarp82、When riveted joints occur at the ends of plating they are called _ dAtrailersBterminalsCseamsDbutts83、When securing a hook to the end of a wire rope you should use _ dA