What is the accepted standard for wire rope falls used in connection with the lifeboat gear ________．A.Six by seven galvanized wire ropeB.Six by twenty-four improved plow steel wire ropeC.Six by thirty-seven preformed fiber-core wire ropeD.Six by nineteen regular-lay filler wire rope
What is the accepted standard for wire rope falls used in connection with the lifeboat gear ________．
A.Six by seven galvanized wire rope
B.Six by twenty-four improved plow steel wire rope
C.Six by thirty-seven preformed fiber-core wire rope
D.Six by nineteen regular-lay filler wire rope
相关考题：
Which wire rope purchases may be used with a 30-ton pedestal crane ________．A.HoistB.LuffC.Rider blockD.All of the above
Which molten substance is poured into the basket of a wire rope socket being fitted to the end of a wire rope ________．A.BabbittB.BronzeC.LeadD.Zinc
An advantage of nylon rope over manila rope is that nylon rope ______.A.can be used in conjunction with wire or spring-lay ropeB.can be stored on decks exposed to sunlightC.can hold a load even when a considerable amount of the yarns have been abradedD.gives audible warning of overstress whereas manila does not
Ropes can be divided into three types: （）.A、natural fiber rope, manila rope and synthetic ropeB、natural fiber rope, synthetic rope and wire ropeC、synthetic rope, manila rope and wire ropeD、synthetic rope, manila rope and wooden rope
A （）(钢丝刷) should be used on all bare metal to remove the last of the scale.A、wire brushB、wire ropeC、wire rodD、wire rope clip
单选题When securing a hook to the end of a wire rope you should use（）.AA bowline knotBA long spliceCAn overhand knot with a wire rope clipDWire rope clips with a thimble eye
单选题The strongest method of forming an eye in wire rope is using（）.Athree wire rope clampsBan eye splice with four or five tucksCa thimble fastened with four or five tucksDa wire rope socket attached with zinc
单选题Which is normally used to hold wire rope for splicing（）.ACome alongBJiggerCRigger's screwDSealing clamp
单选题A common class of wire rope is the 6X37 class.What does the 37 represent（）.ANumber of wires in the inner coreBNumber of strands per wire ropeCTensile strength of the wireDNumber of wires per strand
单选题In launching a covered lifeboat，what would safely lower the lifeboat from inside the lifeboat cabin?（）AFrapping lineBTricing lineCRottmer releaseDWinch remote control wire
单选题What is the main reason to slush a wire rope?（）AKeep the wire soft and manageableBLubricate the inner wires and prevent wearCPrevent kinkingDPrevent rotting
单选题If you were to pass a stopper on a wire rope，what should the stopper be made of?（）AWireBManilaCNylonDChain
单选题Galvanizing would not be suitable for protecting wire rope which is used for（）.Acargo runnersBmooring wiresCshroudsDstays
单选题An advantage of nylon rope over manila is that nylon rope（）.Acan be used in conjunction with wire or spring-lay ropeBcan be stored on decks exposed to sunlightCcan hold a load even when a considerable amount of the yarns have been abradedDgives audible warning of overstress whereas manila does not
单选题What is the accepted standard for wire rope falls used in connection with the lifeboat gear?（）ASix by seven galvanized wire ropeBSix by twenty-four improved plow steel wire ropeCSix by thirty-seven preformed fiber-core wire ropeDSix by nineteen regular-lay filler wire rope
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What material may be substituted for zinc when making a poured metal socket ending to a wire rope（）.ALeadBBabbittCSolderDNothing
单选题A fid is a（）.Amallet used when splicing wire ropeBsharp pointed crow bar used to unlay wire ropeCtapered steel pin used to separate wire ropeDtapered wooden pin used when splicing heavy rope
单选题A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?（）AFactor of safetyBNumber of wires per strandCNumber of strands per wire ropeDNumber of wires in the core
单选题What is a step in attaching a poured metal socket to a wire rope?（）AEtch 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 socket
单选题A device used to tighten up remaining slack in wire rope when you are making up to a tow in inland waters is a（）.Atripping lineBtripping bracketCnorman pinDsteamboat ratchet
单选题What is an advantage of having wire rope with a fiber core over that of a wire rope of the same size with a wire core（）.AFiber core rope offers greater strengthBFiber core rope offers greater flexibilityCFiber core rope can be used at higher operating temperaturesDFiber core rope is the only type authorized for cargo runners
单选题An advantage of nylon rope over manila rope is that nylon rope（）.Acan hold a load even when a considerable number of the yarns have been abradedBcan be stored on deck，exposed to sunlightCcan be used in conjunction with wire or spring-lay ropeDgives audible warning of overstress whereas manila does not
单选题A deck fitting，used to secure line or wire rope，consisting of a single body with two protruding horns is called a（）.AbittBbollardCcapstanDcleat
单选题A “spring line” is（）.Aany wire rope used for mooringBa fire-warpCa mooring line running diagonally to the keelDa mooring line perpendicular to the keel
单选题A spring line is a（）.Amooring line made of spring lay wire ropeBmooring line running diagonally to the keelCmooring line parallel to the keelDwire rope used for securing an anchor buoy
单选题What happens to the pulling power of a winch when retrieving wire rope?（）AIt increasesBIt decreasesCIt remains the sameDIt fluctuates，depending on the gearing system