Where do fatigue failures of wire rope mooring lines usually occur ________．A.In the middle part of the line lengthB.Near the socketed end fitting adjacent to the anchorC.At the point where the line touches the bottomD.At the place the anchor buoy is attached to the line
Where do fatigue failures of wire rope mooring lines usually occur ________．
A.In the middle part of the line length
B.Near the socketed end fitting adjacent to the anchor
C.At the point where the line touches the bottom
D.At the place the anchor buoy is attached to the line
相关考题：
A storm is forecast for the area where your vessel is moored. For its safety you should put ______.A.more slack in the mooring linesB.a strain on the mooring linesC.chafing gear on the mooring linesD.grease on the mooring lines
Vessels lying afloat at buoys for more than 24 hours should use anchor chain for ______ and insurance wire for ______.A.bow mooring／stern lineB.forward spring／after springC.forward breast rope／forward springD.slip rope／stern line
Which statement is TRUE about the use of a“gob rope”________．A.The gob rope is a mooring line for tying up lighters for working cargo alongside a vessel anchored in an open roadsteadB.The gob rope is used to secure the towline aft over the centerline of a tugC.The gob rope is a line hung over a vessel's side to assist in boardingD.The gob rope is a rope used in mooring a vessel to a buoy
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
A mooring line is described as being 6x24, 1-3/4 inch wire rope. What do the above numbers refer to ? ______.A.Strands, yarns, circumferenceB.Strands, wires, diameterC.Wires, yarns, diameterD.Strands, circumference, wires
Chafing gear should be placed______．A.at all wearing points of mooring linesB.around running riggingC.on wire rope only forcesD.at the bitter ends of all standing rigging
Chafing gear(防摩擦装置) is used to______．A.anchor the boatB.pick up heavy loadsC.protect fiber rope from abrasionD.strengthen mooring lines
Given the same water depth and line tension, the holding power of a 19 pound / foot wire rope mooring system in comparison to the holding power of a 90 pound / foot chain mooring system will be ______.A.weakerB.equalC.greaterD.Indeterminable
In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to ______.A.increase fatigue life of the systemB.reduce the time to retrieve the lineC.increase the holding powerD.reduce the catenary
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
及时调整缆绳。（）A、Adjust the mooring lines on time.B、Adjust the mooring lines in time.C、Adjust the mooring lines quickly.D、Adjust the mooring lines slowly.
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A mooring line is described as being 6x24，1-3/4 inch wire rope. What do the above numbersrefer to?（）AStrands，yarns，circumferenceBStrands，wires，diameterCWires，yarns，diameterDStrands，circumference，wires
单选题Where are the test certificates，for wire rope used as cargo runners，and loose gear certificates usually maintained? （）AWith the Cargo Gear Register on the shipBIn the Official LogCAt the Coast Guard Marine Safety Office with the vessel's inspection recordsDAt the central records center of the agency testing the cargo gear
单选题What is likely to occur when you are surging synthetic mooring lines on the gypsyhead during mooring operations?（）AThe lines may jam and then jump off the gypsyheadBIf there is sudden strain on the line，the man tending the line may be pulled into the gypsyheadCThe lines' surging may cause the vessel to surgeDThe heat generated may cause the lines to temporarily fuse to the gypsyhead
单选题Chafing gear is used to（）.Aanchor the boatBpick up heavy loadsCprotect fiber rope from abrasionDstrengthen mooring lines
单选题Chafing gear should be placed（）.Aat all wearing points of mooring linesBat the bitter ends of all standing riggingCaround running riggingDon wire rope only
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In a combination chain and wire rope mooring system，the anchor chain is deployed at the anchor end of the line to（）.Aincrease fatigue life of the systemBreduce the time to retrieve the lineCincrease the holding powerDreduce the catenary
单选题A wire rope that has been overstrained will show（）.Aa bulge in the wire where the strain occurredBa decrease in diameter where the strain occurredCa kink in the wire where the strain occurredDno visible effects of an overstrain
单选题Vessels lying afloat at buoys for more than 24 hours should use anchor chain for（）and insurance wire for（）.Abow mooring／stern lineBforward spring／after springCforward breast rope／forward springDslip rope／stern line
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 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A storm is forecast for the area where your vessel is moored. For its safety you should put （）.Amore slack in the mooring linesBa strain on the mooring linesCchafing gear on the mooring linesDgrease on the mooring lines
单选题Given the same water depth and line tension，the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be（）.AweakerBequalCgreaterDindeterminable
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