railway RRB JE (CBT I + CBT II) Mock Test 2024 Power Engineering Air and Gas Compressors Reciprocating Compressors
The optimum intermediate pressure P2 in a two-stage air compressor having P1 = 4 bar and P3 = 9 bar, as suction and delivery pressures respectively, is equal to:
1
13 bar
2
9 bar
3
4 bar
4
6 bar