单项选择题
A.Oil temperature too high B.Diameter of gravity disc too large C.Oil temperature too low D.High level tank out of water
（）can cause oil flow from water outlet of a separator.A...
单项选择题（）can cause oil flow from water outlet of a separator.
A.Oil inlet valve opening too quickly B.Oil temperature too high C.Diameter of gravity disc too small D.Viscosity of oil too low
When finish work on the oil separator, you should（）firs...
单项选择题When finish work on the oil separator, you should（）firstly.
A.cut off the power B.cut off the oil inlet C.open guide water valve D.close oil outlet value
When separating the lube oil without additive, it is us...
单项选择题When separating the lube oil without additive, it is usually cleaned with hot water; the aim is to remove （） from it.
A.acid B.sludge C.mechanical impurity D.salinity
