A .1000
B .1100
C .1200
D .1300
[单选题]XJ-80修井机的大钩最大拉力是()kN。A .1521B .2105C .1125D .1215
[单选题]XJ450修井机,当大钩悬重达()kN以上时,应使用水刹车。A .200B .300C .400D .500
[单选题]XJ450修井机驱动桥有()。A .前二、后三、后四桥B .前一、后三、后四桥C .前一、前二、后三、后四桥D .后三、后四桥
[单选题]XJ450修井机液力变矩器的换挡方式为()。A .手动B .自动C .机械D .气动
[单选题]XJ450修井机前部车轮前束为()mm。A .0~1B .0~2C .0~3D .0~4
[单选题]XJ450修井机钢丝绳直径是()mm。A .16B .26C .36D .46
[单选题]XJ-80修井机的滚筒快绳最大拉力是()kN。A .130B .140C .150D .160
[单选题]XJ450修井机井架天车滑轮是()个。A .2B .3C .4D .5
[单选题]XJ450修井机最小转弯半径为()m。A .10B .15C .20D .25
[单选题]XJ450修井机气压低于()MPa时,不得启动车辆。A .0.35B .0.45C .0.55D .0.65