Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by ().
A、internal crankshaft passages
B、immersion in oil
C、splash lubrication
D、injection lubrication
A、internal crankshaft passages
B、immersion in oil
C、splash lubrication
D、injection lubrication
A、high TBN value B、low oil floc point C、low oil demulsibility D、low oil neutralization number
A、Viscosity will increase as temperature increases B、Viscosity is a measure of a fluid s internal resistance to flow C、Viscosity will decrease as temperature decreases D、Viscosity is not dependent on temperature
A、specific gravity B、viscosity C、S E number D、hydrolytic stability
A、A.lubricating oil B、B.lubricating oil systems C、C.strainers D、D.cartridges
A、must be centrifuged B、must by filtered C、must be changed D、is holding finely dispersed carbon in suspension
A、dropping lube oil for lubrication, reducing the pollution to the sea B、setting a temporary gravity oil tank and enhanced the position properly C、lubricating with the used lube oil D、lubricating with the fresh water and navigation in a lower speed
A、The fuel oil B、The lube oil C、The sea water D、The fresh water
A、bilge tank B、sludge tank C、overflow tank D、oil collecting tank
A、A.metal particles loosened by wear B、B.air when no air cleaners are used C、C.condensation of water vapors D、D.breakdown of the lubricating oil by dilution