A、wax precipitation in the lube oil
B、contamination by dust, scale, or moisture
C、refrigerant bubbles in the lube oil
D、refrigerant reducing the lube oil viscosity
更多“Sludge may form in the lubricating oil crankcase of a reciprocating air conditioning compressor as a result of （）.”相关的问题
A、bubbling refrigerant B、overheating and oxidation C、lowered operating temperatures D、reducing the cloud or flash point
A、refrigerant bubbles in the lube oil B、refrigerant reducing the lube oil viscosity C、oxidation of the lube oil from overheating D、reducing the floc or cloud point of the oil
A、completely drain the boiler in an emergency B、prevent sludge from forming in the drum C、remove floating impurities from the boiler water surface D、remove settled solids from the water drum
A、dilutes the lube oil and reduces its viscosity B、forms sulfuric acid in the lube oil C、causes pitting and failure of the bearings D、causes sludge deposits on valve stems
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