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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（）.
A
increase fatigue life of the system
B
reduce the time to retrieve the line
C
increase the holding power
D
reduce the catenary
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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
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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
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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
考题
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
考题
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
考题
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 ______.A.weakerB.equalC.greaterD.Indeterminable
考题
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
考题
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
考题
单选题When securing a hook to the end of a wire rope you should use（）.A
A bowline knotB
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An overhand knot with a wire rope clipD
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考题
单选题The strongest method of forming an eye in wire rope is using（）.A
three wire rope clampsB
an eye splice with four or five tucksC
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a wire rope socket attached with zinc
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单选题One advantage of chain over wire rope for a tow bridle is that chain（）.A
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单选题A mooring line is described as being 6x24，1-3/4 inch wire rope. What do the above numbersrefer to?（）A
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Strands，wires，diameterC
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单选题Chafing gear should be placed（）.A
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单选题What is the accepted standard for wire rope falls used in connection with the lifeboat gear?（）A
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Six by twenty-four improved plow steel wire ropeC
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考题
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wire rope mooring systemC
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单选题Vessels lying afloat at buoys for more than 24 hours should use anchor chain for（）and insurance wire for（）.A
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考题
单选题A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?（）A
Factor of safetyB
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Number of wires in the core
考题
单选题A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain（）.A
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requires little maintenanceD
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考题
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（）.A
Fiber core rope offers greater strengthB
Fiber core rope offers greater flexibilityC
Fiber core rope can be used at higher operating temperaturesD
Fiber core rope is the only type authorized for cargo runners
考题
单选题The most doubtful and unpredictable factor in a mooring system is the（）.A
ability of the anchors to hold in a seabedB
anchor chain catenary lengthC
variability of the fairleadD
angle of the flukes
考题
单选题A rope made of a combination of wire and fiber is known as（）.A
independentB
lang layC
preformedD
spring lay
考题
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（）.A
weakerB
equalC
greaterD
indeterminable
考题
单选题A “spring line” is（）.A
any wire rope used for mooringB
a fire-warpC
a mooring line running diagonally to the keelD
a mooring line perpendicular to the keel
考题
单选题What happens to the pulling power of a winch when retrieving wire rope?（）A
It increasesB
It decreasesC
It remains the sameD
It fluctuates，depending on the gearing system
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