单项选择题
A.too little seal water B.improper gravity disc C.oil discharging pump not working very well D.low water level of the working water
When separating fuel oil in oil separator, the separati...
单项选择题When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.
A.100% B.80% C.1/2 D.1/3
When separating lube oil separator, the optimal separat...
单项选择题When separating lube oil separator, the optimal separating quantity is（）of the rated quantity on name plate.
A.100% B.1/2 C.1/5 D.1/3
One of the reasons that cause oil flowed from sludge ou...
单项选择题One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
A.seal water supply be cut off B.make up water supply be cut off C.oil outlet valve closed or not open sufficiently D.the flow rate of oily water is too much
