A、corrosion fretting
B、insufficient lubrication
C、abnormal wear
D、fatigue failure
更多“Small crack in the crankshaft bearing surface of a diesel engine are an indication of（）”相关的问题
A、A.cutting a square notch at each end of the crack B、B.drilling a hole at each end of the crack C、C.slot-welding the crack D、D.welding a doubler over the crack
A、cutting a square notch at each end of the crack B、drilling a hole at each end of crack C、slot-welding the crack D、welding a doubler over the crack
A、welding brackets across both ends of the crack B、chipping out and slot welding the entire crack C、drilling a hole at each end of the crack D、cutting a square notch at each end of the crack
A、the use of a poor quality oil B、the deterioration of its properties C、the formation of deposits D、the reduction in heat transfer ability
A、a cracked cylinder head B、a leaky cylinder head gasket C、a cracked cylinder liner D、any of the above
A、a cracked cylinder liner B、excessive water in the fuel C、a leaking intercooler D、excessive moisture in the scavenge air
A、Extend arm and point finger in the direction to move the boom B、Extend arm with the thumb pointing downward and flex fingers in and out C、With f rearm vertical and forefinger pointing up,move hand in small horizond circles D、With arm extended downwards and forefinger pointing down,move hand in small horizontal circles
A、abandon the survival craft B、check for cracks in the hull C、shift all personnel to the stern D、check the bilge drain plug
客服
TOP
查看正确答案
