engineering recuitment HPCL Engineer Mock Test 2024 Power Engineering Gas and Vapor Power Cycles Brayton Cycle
The velocity of a gas flowing through a duct is 300 m/s; its temperature is 127°C: Gas constant R = 0.25 kJ/kg K, the ratio of specific heat is Cp /Cy = γ is 1.6. What is the value of Mach number?
1
0.70
2
0.72
3
0.75
4
0.77