【单选题】
crane（）
A、起货机
B、起重机
C、龙门吊
D、重吊杆
查看正确答案A、gantry crane B、floating crane C、shore crane D、overhead crane
搜题
更多“crane（）”相关的问题
第2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
第3题
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
第4题
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
第6题
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
第8题
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
第9题
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
第10题
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
