Mousing a cargo hook with marline or small line ______.A.increases the lifting capacity of the hookB.protects the hook from the sling ringC.prevents the sling ring from coming out of the hookD.All of the above
Mousing a cargo hook with marline or small line ______.
A.increases the lifting capacity of the hook
B.protects the hook from the sling ring
C.prevents the sling ring from coming out of the hook
D.All of the above
相关考题：
The piping that routes an oil cargo from the manifold to underdeck pipelines is known as a ______.A.cargo fillB.line dropC.transferD.branch line
With a given load on the cargo hook，tension in a single span topping lift ______.A.increases as the boom's angle to the horizontal increasesB.is at a maximum when the boom is at a 45° angle to the horizontalC.increases as the boom's angle to the horizontal decreasesD.decreases as the boom's angle to the horizontal decreases
With a given load on the cargo hook，the thrust on a cargo boom ______.A.increases as the angle to the horizontal increasesB.increases as the angle to the horizontal decreasesC.is greatest at an angle of 45° and decreases as the boom is raised or loweredD.is least at an angle of 45° and increases as the boom is raised or lowered
Which safety precaution（s）should be observed during crane operations ________．A.Checking for proper lifting from beneath the load during cargo operationsB.Using the proper slings or other lifting devices during cargo operationsC.Relaying communications to port agents on the pier during cargo hoistsD.All of the above
For any given pedestal crane，when the boom is lengthened，the lifting capacity is ______．A.unchangedB.increasedC.eliminatedD.decreased
The boom indicator on a crane will indicate the ______．A.Length of the boomB.Angle of the boomC.Lifting capacity of the boomD.Direction of the boom
What is NOT required to be contained in the oil transfer procedures ________．A.A line diagram of the vessel's oil transfer pipingB.The number of persons on duty during oil transfer operationsC.Any special procedures for topping off tanksD.The location and capacity of all fuel and cargo tanks on the vessel
To determine the weight capacity of a deck in a cargo hold，you would refer to the ______．A.Deadweight scaleB.Deck capacity planC.Cubic capacity tablesD.General arrangement plan
单选题To determine the weight capacity of a deck in a cargo hold，you would refer to the（）.Adeadweight scaleBdeck capacity planCcubic capacity tablesDgeneral arrangement plan
单选题In cargo crane, （） for lifting the load.Aa hoisting motorBa luffing motorCa mooring motorDa slewing motor
单选题When the derrick changes its （）(角度), its lifting capacity changes correspondingly.AangelBlengthCheightDangle
单选题For any given pedestal crane，when the boom is lengthened，the lifting capacity is（）.AunchangedBincreasedCeliminatedDdecreased
单选题重吊杆用于吊大的重件。（）AHeavy derrick is used for lifting large heavy cargo.BDerrick is used for lifting large heavy cargo.CHeavy derrick is used for lifting dry bulk cargo.DDerrick is used for lifting dry bulk cargo.
单选题Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.Aafter torque causes line pull to exceed the rated capacity of the winchBbefore the line pull reaches the rated capacity of the winchCwhen the line pull reaches the breaking strength of the fallDbefore the safe working load of the fall is reached
单选题The hatch at the after end of the canopy in a lifeboat（）the after lifting hook, painter, and tow line.Agive access toBlinks up withChave contact withDis constructed of
单选题With a given load on the cargo hook，the thrust on a cargo boom（）.Aincreases as the angle to the horizontal increasesBincreases as the angle to the horizontal decreasesCis greatest at an angle of 45° and decreases as the boom is raised or loweredDis least at an angle of 45° and increases as the boom is raised or lowered
单选题Mousing a cargo hook with marline or small line（）.Aincreases the lifting capacity of the hookBprotects the hook from the sling ringCprevents the sling ring from coming out of the hookDAll of the above
单选题A bench hook is used for（）.Ahanding of cargo casesBhanding oilskingsCsewing canvasDsplicing small stuff
单选题A （）(重吊杆)is used for lifting long heavy cargo.AderrickBcraneCjumbo boornDspecial crane