Explore topic-wise MCQs in Aerodynamics.

This section includes 9 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 causes thrust of an engine?

A. Change in momentum
B. Difference in lift distribution
C. Difference in drag distribution
D. Mass flow entering the engine
Answer» B. Difference in lift distribution
Discussion
2.

What happens to the integral ∫dS when the area of exhaust is less than the area of inlet?

A. Positive
B. Negative
C. Zero
D. Infinity
Answer» C. Zero
Discussion
3.

Integral form of momentum equation cannot replace the need for theoretical and experimental measurements.

A. True
B. False
Answer» C.
Discussion
4.

The integral form of the conservative equation is used for computing thrust of an engine.

A. True
B. False
Answer» B. False
Discussion
5.

What is the thrust of an engine if the inlet and exhaust mass flow rate are 150 kg/s and 190 kg/s respectively with the pressure difference between the exhaust and ambient air is 1.85 × 104? The exhaust area is 2m2, the ambient and exhaust velocities are 280 m/s and 400 m/s.

A. 50 kN
B. 62 kN
C. 71 kN
D. 84 kN
Answer» D. 84 kN
Discussion
6.

What is the static thrust for an engine as derived from the integral momentum equation?

A. T = \(\dot {m}\)ue + Ae(pe – p0)
B. T = \(\dot {m}\)Ae(pe – p0)
C. T = Ae(pe – p0)
D. T = \(\dot {m}\)Ae
Answer» B. T = \(\dot {m}\)Ae(pe – p0)
Discussion
7.

What is the formula for net thrust of the engine?

A. F = -∯pdS
B. F = ∯pdS
C. F = -∯\(\frac {dS}{p}\)
D. F = -∯p2 dS
Answer» B. F = ∯pdS
Discussion
8.

Thrust produced by engine is due to the shear stress distribution from the fluid.

A. True
B. False
Answer» C.
Discussion
9.

What forces are exerted on the body by a fluid flow?

A. Pressure force
B. Shear stress
C. Pressure and shear stress
D. Lift force
Answer» D. Lift force
Discussion