A、吊杆的安全工作负荷从5吨到10吨不等。
B、安全规则规定，吊杆是5吨和10吨。
C、吊杆自身的重量从5吨到10吨不等。
D、起重机的安全工作负荷从5吨到10吨不等。
更多“The SWL of the derricks are different from 5 tons to 10 tons.（）”相关的问题
A、is the SWL of the crane B、are the SWL of the crane C、the SWL of the crane is D、the SWL of the crane are
A、The SWL of the derrick is five tons. B、The SWL of the heavy derrick is six tons. C、The SWL of the derrick is six tons. D、The SWL of the crane is six tons.
A、one-half the SWL of the main towing hawser B、three-fourths the SWL of the main towing hawser C、that of the main towing hawser D、twice that of the main towing hawser
A、Sailors should know the SWL of cranes on board their ship. B、Sailors should know the SWL of derricks on board their ship. C、Officers should know the SWL of derricks on board their ship. D、Officers should know the SWL of cranes on board their ship.
A、is rigged at an angle of 70°to 90°from the guy it assists B、takes the strain imposed on the schooner guy when burtoning cargo C、is rigged when lifting cargo that exceeds the SWL of a single whip D、should take the strain if the regular guy parts
A、the raising of the standards of teaching and the reform in curriculum B、the raising of the standards of teaching and learning and the restructuring of the schools C、the raising of the standards of teaching and the improvement of the standards of learning D、None of the above
A、volume of liquid in the tank B、volume of displacement of the vessel C、location of the tank in the vessel D、height of the center of gravity of the vessel
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