A、A.poor distillate quality
B、B.reduced evaporator capacity
C、C.low brine concentration
D、D.improper vacuum regulation
更多“Excessive scale formation in a distilling plant may result from （）.”相关的问题
A、excessive time required for warming-up B、excessive freshwater corrosion C、scale formation on the saltwater side D、saltwater mixing with the freshwater
A、caustic embrittlement of the boiler metal B、acidic corrosion of the boiler metal C、hard scale deposits on the boiler tubes D、etching of the heat exchange surfaces
A、concentrations of calcium sulfate in the boiler water B、fuel oil in the feed water C、improper treatment of the feed water with calcium sulfate D、excessive feed water alkalinity
A、overheated compressor bearings B、excess lube oil viscosity C、carbon deposits on the compressor piston rings D、wax crystals forming in the lubricant
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