railway RRB JE (CBT I + CBT II) Mock Test 2024 Power Engineering Air and Gas Compressors Reciprocating Compressors
A four-stage reciprocating compressor has suction pressure of 1 bar delivery pressure of 81 bar. For minimum work of compression, the delivery pressure of first-stage is
1
14 bar
2
12 bar
3
4 bar
4
3 bar