engineering recuitment DVC Junior Engineer Mock Test 2024 Power Engineering Steam Turbine Nozzle and Diffuser
When a converging-diverging nozzle is operated at off-design conditions, a normal shock forms in the diverging portion. The nozzle can be assumed to be perfectly insulate from the surroundings. Then across the shock
1
The velocity undergoes a jump but pressure and entropy remain unchanged
2
The pressure undergoes a jump but velocity and entropy remain unchanged
3
The velocity and pressure undergo a jump, but entropy remains unchanged because there is no heat transfer
4
Velocity, pressure and entropy all undergo a jump