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
A mooring line is described as being 6x24, 1-3/4 inch wire rope. What do the above numbers refer to ? ______.
A.Strands, yarns, circumference
B.Strands, wires, diameter
C.Wires, yarns, diameter
D.Strands, circumference, wires
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A teenager as he was, Frank could resist()what to do and what not to do. A、being toldB、to be toldC、to tellD、telling
After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?A．It will recall the previous command lineB．It will move the cursor one line upC．It will redisplay the current command lineD．It will capitalize the command lineE．None of the above
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
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
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
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
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
After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?（）A、It will recall the previous command lineB、It will move the cursor one line upC、It will redisplay the current command lineD、It will capitalize the command lineE、None of the above
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Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white? （）AA vessel engaged in diving operationsBA pilot vesselCA vessel trawlingDAll of the above
单选题After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?（）AIt will recall the previous command lineBIt will move the cursor one line upCIt will redisplay the current command lineDIt will capitalize the command lineENone of the above
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You are handling a mooring line and are instructed to Check the line.What should you do（）.AEnsure the bight is not fouled by taking up slackBPay out the line smartly and keep it free for runningCSecure the line by adding more turnsDSurge the line so it maintains a strain without parting
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 vessel engaged in fishing，and at anchor，shall show（）.Aan anchor lightBsidelights and a stern lightCthree lights in a vertical line，the highest and lowest being red，and the middle being whiteDNone of the above
单选题What could cause a significant difference between actual chain tension and the tension measured by the tensiometer? （）AThe type of anchor and mooring line being usedBThe type of bottom in which the ship is anchoredCA significant difference between air and water temperatureDThe chain contacting a chock or fairlead between the tensiometer and the lower swivel fairlead
单选题A vessel enagaged in fishing，and at anchor，shall show（）.Aan anchor lightBsidelights and a sternlightCthree lights in a vertical line，the highest and lowest being red，and the middle being whiteDNone of the above
单选题What is the holding power ratio of an anchor? （）AMaximum mooring line tension divided by the anchor's weight in airBAnchor's weight in air divided by the maximum mooring line tensionCPreloading tension divided by the anchor's weight in airDOperating tension divided by the anchor's weight in air
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The indication of a slipping anchor is a(n)（）.Adecrease in mooring line lengthBincrease in the opposite amperageCincrease in the opposite line tensionDdecrease in mooring line tension and amperage
问答题4 9 6 2 3 4 7 8 2 1 9 6 4 3 2 Multiply by 7 the number of odd numbers which are immediately followed by an even number in the list above. What is the answer?
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
单选题What is normally used to pass a mooring line to a dock?（）ADistance lineBGantlineCHeaving lineDTag line