engineering recuitment HPCL Junior Executive 2025 Mock Test Power Engineering Air and Gas Compressors Reciprocating Compressors
Consider the following statements about two-stage reciprocating compressors:
1. For the same pressure ratio the volumetric efficiency of a two-stage compressor is more than that of single stage compressor.
2. A two-stage compressor requires minimum work when inter-cooling is perfect.
3. The intercooler pressure p2, is the average of inlet pressure p1, and delivery pressure p3
Which of the above statements are correct?1
1 and 3 only
2
1 and 2 only
3
2 and 3 only
4
1, 2 and 3