【单选题】A decrease in the flash point of diesel engine lube oil indicates the lube oil has become _____.
A.
contaminated with sludge
B.
contaminated with carbon
【单选题】Demulsibility of a lube oil is defined as _____.
A.
the ability of oil to separate from water
B.
the temperature at which oil flows rapidly
C.
a measure of the water in a lube oil system
D.
an emulsion of different grades of oil
【判断题】只要地面足够清洁,原料药可以直接放在地面上。
【单选题】A dirty lube oil strainer can result in()
B.
low lube oil temperature
C.
excessive oil consumption
D.
low bearing oil pressure
【单选题】Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?
A.
Water discharging from the water outlet of the lube oil purifier
B.
Fuel oil discharging from the water outlet of the lube oil purifier
C.
Lube oil discharging from the water outlet of the lube oil purifier
D.
A change in the lube oil viscosity