A、combined as part of the salt water feed heater
B、the open area above the brine levels in the first and second stages
C、combined as part of the distillate cooler
D、another term used to describe the vapor feed heater
更多“On a multistage flash-type evaporator, the flash chamber is （）”相关的问题
A、variable stroke pumps B、multistage pumps C、positive displacement pumps D、triple-ported pumps
A、two or more impellers housed together in one casing and mounted on a single shaft B、a single stepped impeller mounted in a progressively staged casing C、a large radial clearance between the impeller and casing to prevent overheating due to D、an increase in the discharge velocity of the liquid with a corresponding decrease in pressure through the stages
A、variable stroke pumps B、multistage pumps C、positive displacement pumps D、triple-ported pumps
A、Single stage or multistage B、High pressure or low pressure C、Open or close coupled D、Horizontal or vertical
A、On a vessel ,lines are made fast on bollards . B、On shore, lines are made fast on bollards . C、On board , lines are made fast on bitts. D、On board, lines are made fast on bollards .
A、Sailors are always on watch on the bridge. B、Deck officers are always on watch on the bridge. C、Sailors are never on watch on the bridge. D、Deck officers are never on watch on the bridge.
A、High pressure compressors are more efficient than low pressure compressors B、Mechanical efficiency divided by compressor efficiency will equal the overall efficiency of the compressor unit C、Two stage compressors are generally more efficient than single stage compressors D、The volumetric efficiency is decreased in multistage compressors
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