Gas Dynamics MCQs

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1. What is the Mach number defined as in gas dynamics?



2. In a converging-diverging nozzle, where does the flow reach its maximum velocity?



3. Which equation describes the relationship between Mach number and velocity for an isentropic flow?



4. At Mach 1, the flow velocity is equal to:



5. What happens to the pressure of a gas when it reaches and passes through Mach 1?



6. Which type of shock wave causes the flow to slow down and increase in pressure?



7. What is the term for the region of subsonic flow where Mach number is less than 1?



8. In which type of nozzle does the flow expand to supersonic speeds?



9. Which parameter remains constant across an isentropic flow?



10. What happens to the flow velocity at the throat of a converging-diverging nozzle when the flow is choked (Mach number = 1)?



 

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