engineering recuitment HPCL Junior Executive 2025 Mock Test Power Engineering Air and Gas Compressors Centrifugal Compressors
At the eye tip of a centrifugal impeller, blade velocity is 200 m/s while the uniform axial velocity at the inlet is 150 m/s. If the sonic velocity is 300 m/s, then the inlet Mach number of flow will be
1
0.75
2
0.66
3
0.90
4
0.83