单项选择题

If sludge accumulates on the underside of a diesel engine piston, it will（）

A.cause blow-by
B.chemically attack the piston skirt
C.form an emulsion of lube oil and water
D.raise the piston temperature

相关考题

Which condition indicates the air side fouling of an af...

单项选择题Which condition indicates the air side fouling of an after-cooler on a turbocharged diesel engine?（）

A.An increased air temperature differential between the cooler inlet and outlet
B.A decrease in the air pressure differential across the cooler
C.Excessive condensate forming in the air box
D.A decrease in the air temperature differential between the cooler inlet and outlet

Black areas on the sealing surfaces of piston rings ind...

单项选择题Black areas on the sealing surfaces of piston rings indicate（）

A.lube oil pumping
B.rotating rings
C.gas pressure behind the ring
D.passage of hot gases

When inspecting piston rings through the ports of a two...

单项选择题When inspecting piston rings through the ports of a two-stroke/cycle diesel engine, black areas on the sealing surfaces are the result of （）

A.insufficient lubrication
B.improper piston cooling
C.blow-by
D.overload operation

船舶电气与船舶安全

If sludge accumulates on the underside of a diesel engine piston, it will（）