Explore topic-wise MCQs in Aerodynamics.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the relation between back pressure and exit pressure in case of subsonic flow at the nizzle s exit?

A. p<sub>B</sub> = p<sub>e</sub>
B. p<sub>B</sub> &gt; p<sub>e</sub>
C. p<sub>B</sub> &lt; p<sub>e</sub>
D. p<sub>B</sub> = 2p<sub>e</sub>
Answer» B. p<sub>B</sub> &gt; p<sub>e</sub>
Discussion
2.

Which of these conditions is not applicable for choked flow?

A. The Mach number at the throat is zero
B. Mass flow is constant
C. Exit pressure is lower than inlet pressure
D. Exit pressure is same as the inlet pressure
Answer» E.
Discussion
3.

In case of flow inside a nozzle, how should the exit pressure be in relation to the inlet pressure?

A. Exit pressure = Inlet pressure
B. Exit pressure &gt; Inlet pressure
C. Exit pressure &lt; Inlet pressure
D. There is no relation between the two pressures
Answer» D. There is no relation between the two pressures
Discussion
4.

The area Mach number relation yields how many solutions for a given Mach number?

A. 2
B. 4
C. 6
D. 0
Answer» B. 4
Discussion
5.

State true or false. Divergent convergent nozzles are used to achieve supersonic flow.

A. True
B. False
Answer» C.
Discussion
6.

What happens to the velocity of the supersonic flow in the divergent duct?

A. Decreases
B. Increases
C. Remains the same
D. Changes periodically
Answer» C. Remains the same
Discussion
7.

For which of these flows do we need a convergent duct to increase the velocity of the flow?

A. Subsonic flow
B. Supersonic flow
C. Hypersonic flow
D. Sonic flow
Answer» B. Supersonic flow
Discussion
8.

Which of these parameters in quasi one dimensional flow varies w.r.t. x as opposed to the one dimensional flow?

A. Cross sectional area
B. Pressure
C. Density
D. Temperature
Answer» B. Pressure
Discussion