单项选择题
A.Lightning in the vicinity B.An approaching squall line C.A fire on the pier D.All of the above
During which condition should the operator of a pedesta...
单项选择题During which condition should the operator of a pedestal crane shutdown operations?（）
A.Lightning B.High winds C.Fire aboard D.All of the above
A.Bunkering barge alongside B.Potable water spill on deck C.Crane hydraulic hose bursts D.Trim greater than 4 feet
A.Bunkering B.High winds C.Potable water spill on deck
