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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
Strands，yarns，circumference
B
Strands，wires，diameter
C
Wires，yarns，diameter
D
Strands，circumference，wires
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更多 “单选题A mooring line is described as being 6x24，1-3/4 inch wire rope. What do the above numbersrefer to?（）A Strands，yarns，circumferenceB Strands，wires，diameterC Wires，yarns，diameterD Strands，circumference，wires” 相关考题
考题
Mooring winch should be equipped with mechanical brakes capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the maximum expected tension of the mooring lineD.50% over the working tension of the mooring line
考题
A synthetic mooring line is being heaved on a capstan．There is moderate strain on the line．The line begins to slip．Which of the following should be done？Ⅰ．Stop the capstan and take extra turns．Ⅱ．Have more than one seaman keep a substantial strain on the line and continue heaving easy．A.ⅠonlyB.ⅡonlyC.Both Ⅰand ⅡD.Neither Ⅰ nor Ⅱ
考题
Mooring winch should be equipped with mechanical brakes which are capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the maximum expected tension of the mooring lineD.50% over the working tension of the mooring line
考题
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
考题
During a storm，the chance of fatigue failure of a mooring line will increase as ______.A.vessel motions increaseB.mooring tensions decreaseC.KG increasesD.KG decreases
考题
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
考题
The indication of a slipping anchor is a（n）______．A.Decrease in mooring line lengthB.Increase in the opposite amperageC.Increase in the opposite line tensionD.Decrease in mooring line tension and amperage
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
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
单选题A mooring line leading at nearly right angles to the keel is a（）.A
bow lineB
breast lineC
spring lineD
stern line
考题
单选题A short splice in a line（）.A
decreases the size of the lineB
should be used if the line is going through a blockC
should only be used in wire ropeD
doubles the size of the line
考题
单选题A mooring line that prevents a vessel from moving sideways away from the dock is a（）.A
bow lineB
breast lineC
stern lineD
spring line
考题
单选题Two mooring lines may be placed on the same bollard and either one cast off first if（）.A
the eye of the second line is dippedB
the mooring lines are doubledC
the bollard has two hornsD
one of the lines is a breast line
考题
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 systemB
reduce the time to retrieve the lineC
increase the holding powerD
reduce the catenary
考题
单选题An anchor winch should be equipped with mechanical brakes capable of holding（）.A
half the breaking strength of the mooring lineB
the full breaking strength of the mooring lineC
the maximum expected tension of the mooring lineD
50% over the working tension of the mooring line
考题
单选题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
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
Number of wires per strandC
Number of strands per wire ropeD
Number of wires in the core
考题
单选题The indication of a slipping anchor is a(n)（）.A
decrease in mooring line lengthB
increase in the opposite amperageC
increase in the opposite line tensionD
decrease in mooring line tension and amperage
考题
单选题A 6x12，two-inch wire rope has（）.A
12 strands and a two-inch diameterB
12 strands and a two-inch circumferenceC
6 strands and a two-inch diameterD
6 strands and a two-inch circumference
考题
单选题A mooring line that checks forward motion of a vessel at a pier is a（）.A
bow lineB
forward bow lineC
stern lineD
stern breast line
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Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）A
Put one line at the low point and one at the high point of the bollard so they don't touchB
Take the eye of the second line up through the eye of the first line before putting the second line on the bollardC
Never put two mooring lines on the same bollardD
The mooring line forward should be put on the bollard first
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 is normally used to pass a mooring line to a dock?（）A
Distance lineB
GantlineC
Heaving lineD
Tag line
考题
单选题Which mooring line has the least elasticity?（）A
DacronB
NylonC
EsterleneD
Polypropylene
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