单项选择题
（）can not cause oil flow from water outlet of self-cleaning separator.
A.Oil temperature too high
B.Diameter of gravity disc too large
C.Oil temperature too low
D.High level tank out of water
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相关考题
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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 -
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 -
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
