outboard guy()A、稳索B、外牵索C、顶索D、支索
outboard guy()
- A、稳索
- B、外牵索
- C、顶索
- D、支索
相关考题:
双杆作业时,两根吊货索的夹角大于120°,会使________。①稳索的受力急剧增大;②顶攀的张力急剧增大;③吊货索的水平分力急剧增大;④调整稳索受力加大。 A.①~③B.①②④C.②~④D.①③④
The parts of the derrick are: derrick boom rest, gooseneck, center guy, stay, topping lift, topping lift block and so on.()A、吊杆的部件有:吊杆支架、鹅颈头、中心稳索、支索、千斤索和千斤索滑车组等。B、吊杆的部件有:鹅颈头、中心稳索、千斤索、侧稳索、千斤索滑车组和支索等。C、吊杆的部件有:中心稳索、侧稳索、吊杆支架、鹅颈头、千斤索、和千斤索滑车组等。D、吊杆的部件有:侧稳索、中心稳索、鹅颈头、吊杆支架、千斤索、和千斤索滑车组等。
吊杆停用时,稳索必须要收起来。()A、When the derrick is stopped, the guy must be stowed.B、When the derrick is stopped, the guy must be topped.C、When the derrick is stopped, the guy must be lowered.D、When the guy is stopped, the derrick must be stowed.
单选题双吊杆作业时,舷外吊杆发生回跳(吊杆上仰),应立即停止工作,并()A重新调整舷外吊杆保险稳索下端的系结点位置;B重新调整舷外吊杆调整稳索下端的系结点位置;C重新调整舷外吊杆千斤索位置;D重新调整舷外吊杆中稳索系结点位置。
单选题吊杆停用时,稳索必须要收起来。()AWhen the derrick is stopped, the guy must be stowed.BWhen the derrick is stopped, the guy must be topped.CWhen the derrick is stopped, the guy must be lowered.DWhen the guy is stopped, the derrick must be stowed.