The discharge temperature of two stage compressor compared to single stage one is ____ a) Lesser b) Same c) Higher d) None Answer : a) Lesser...
The specific power consumption of non lubricated compressor compared to lubricated type is ____ a) Lesser b) Same c) Higher d) None Answer : c) Higher...
Which of the following type does Screw compressor belongs to? a) Positive displacementcompressor b) Dynamic compressors c) Both a & b d) None of the above Answer : a) Positive displacementcompressor...
What are the likely effects of using very cold water in intercoolers for reciprocating compressors? Answer : Use of very cold water can result in condensation which may result in water entering the cylinder, thereby reducing valve life, accelerating wear and scoring of piston, piston rings and ... and cause rust which will result in abrasion during compressor operation and significantly reduce efficiency. ...
Why inter-coolers are required for multi-stage reciprocating compressors? Answer : The intercoolers reduce the temperature of air/gas discharged between stages. Ideally, the intake temperature at each stage should be the same as that at the first stage (referred to a perfect cooling), so that the volume of air to be compressed does not increase and hence reduced power consumption....
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