crane（）A、起货机B、起重机C、龙门吊D、重吊杆
crane（）
- A、起货机
- B、起重机
- C、龙门吊
- D、重吊杆
相关考题：
The electrical components for each single crane are installed in its ______.A.crane houseB.machinery baseC.turntableD.All of the above
The net productivity per gang-hour can be improved through a decrease of ______.A.cranes／derricksB.crane／derrick cyclesC.crane／derrick cycle timeD.weight per package
Which statement(s) is/are TRUE concerning crane cargo operations?A.Do not exceed rated load capacity of crane and container spreader or slingsB.During any cargo handling operation，the safety of personnel is paramountC.Cargo handlers must be outfitted with adequate protection from personal injuryD.All the above
On no account ______ to be exceeded．A.is the SWL of the craneB.are the SWL of the craneC.the SWL of the crane isD.the SWL of the crane are
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set ________．A.The cranes may be operated independentlyB.The cranes may be interconnected for twin operationC.When twinned，the crane rotation on the foundation assembly is unlimitedD.All of the above
Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels ________．A.A centerline crane can never be operated in tandemB.One crane is able to work one end of two adjacent hatchesC.These cranes are more economical and weigh less than outboard-mounted cranesD.One crane is able to work both sides of the ship
Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane ________．A.Taglines are wire rope purchases that raise and lower the jibB.Taglines are wire ropes for horizontal positioning of the rider blockC.Taglines can be fastened to corners of vehicles or containersD.The crane might not have taglines installed in its rigging system
Which of the following statements is TRUE regarding crane operations ________．A.Radio communications allow the crane operator to disregard the use of hand signalsB.The crane operators and signalman must be familiar with the correct hand signalsC.The forward cranes can be operated from the bridgeD.The aft cranes can be operated from the aft steering station
During which condition should the operator of a pedestal crane shutdown operations ________．A.Bunkering barge alongsideB.Potable water spill on deckC.Crane hydraulic hose burstsD.Trim greater than 4 feet
单选题Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.AThe cranes may be operated independentlyBThe cranes may be interconnected for twin operationCWhen twinned，the crane rotation on the foundation assembly is unlimitedDAll of the above
单选题For any given pedestal crane,when the boom is lengthened, the lifing capacity is（）.AunchangedBincreasedCeliminatedDdecreased
单选题On no account（）to be exceeded.Ais the S.W.L. of the craneBare the S.W.L. of the craneCthe S.W.L. of the crane isDthe S.W.L.of the crane are
单选题On no account（）to be exceeded.Ais the SWL of the craneBare the SWL of the craneCthe SWL of the crane isDthe SWL of the crane are
单选题Which of the following statements is TRUE regarding crane operations（）.ARadio communications allow the crane operator to disregard the use of hand signalsBThe crane operators and signalman must be familiar with the correct hand signalsCThe forward cranes can be operated from the bridgeDThe aft cranes can be operated from the aft steering station
单选题Which action(s) should the operator of a pedestal crane take if crane control is lost?（）ALet go of both control levers and return to neutral positionBPress the emergency stopCNotify the mate on watchDAll of the above
单选题Which statement(s) is/are TRUE concerning crane cargo operations? （）ADo not exceed rated load capacity of crane and container spreader or slingsBDuring any cargo handling operation，the safety of personnel is paramountCCargo handlers must be outfitted with adequate protection from personal injuryDAll the above
单选题Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.AA centerline crane can never be operated in tandemBOne crane is able to work one end of two adjacent hatchesCThese cranes are more economical and weigh less than outboard-mounted cranesDOne crane is able to work both sides of the ship
单选题In a ordinary cargo crane, （） is fitted to rotate the crane.Athe slewing motorBthe lulling motorCthe hoisting motorDnone of the above
单选题0n no account（）to be exceeded.Ais the S.W.L.of the craneBare the S.W.L. of the craneCthe S.W.L. of the crane isDthe S.W.L. of the crane are