The crane is (). Could you ask somebody to repair it?
A、work well
B、good
C、out of order
A、work well
B、good
C、out of order
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、is the S.W.L.of the crane B、are the S.W.L. of the crane C、the S.W.L. of the crane is D、the S.W.L. of the crane are
A、A.is the S.W.L. of the crane B、B.are the S.W.L. of the crane C、C.the S.W.L. of the crane is D、D.the S.W.L.of the crane are
A、The cranes may be operated independently B、The cranes may be interconnected for twin operation C、When twinned,the crane rotation on the foundation assembly is unlimited D、All of the above
A、A.A centerline crane can never be operated in tandem B、B.One crane is able to work one end of two adjacent hatches C、C.These cranes are more economical and weigh less than outboard-mounted cranes D、D.One crane is able to work both sides of the ship
A、It allows for rotation of the hook in the single mode B、It is required to“twin-up”30-ton pedestal cranes C、It is used to pick up light loads D、It is used to rigidly connect two cranes
A、A.Radio communications allow the crane operator to disregard the use of hand signals B、B.The crane operators and signalman must be familiar with the correct hand signals C、C.The forward cranes can be operated from the bridge D、D.The aft cranes can be operated from the aft steering station
A、A.The cranes may be operated independently B、B.The cranes may be interconnected for twin operation C、C.The cranes are powered by independent internal combustion power units D、D.All of the above
A、The discharge is slow due to the size of the cargo and all the cranes working together B、The cargo discharge can be accomplished with controlled pendulation C、The cargo discharge can be performed in port or at anchor D、The cranes enable the handling of heavy cargos without shoreside assistance
A、Cranes are more difficult to secure for sea B、The spotting area of the conventional gear is larger C、A crane operator requires more training than the winch operator of a yard and stay rig D、The yard and stay rig is more flexible in its ability to handle a wider variety of cargoes