Applied Thermodynamics (3161910) MCQs

MCQs of Fundamentals of Compressible Flow

Showing 1 to 10 out of 32 Questions
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1.

All real fluids are

(a)

incompressible
(b)

compressible to some extent
(c)

compressible to any extent
(d)

none of the above.
Answer:

Option (b)

2.

Compressible flow is a flow that deals with

(a)

fluid temperature
(b)

fluid pressure
(c)

fluid density
(d)

fluid geometry
Answer:

Option (c)

3.

Compressible flow mainly deals with

(a)

solid dynamics
(b)

liquid dynamics
(c)

gas dynamics
(d)

solid and liquid dynamics
Answer:

Option (c)

4.

An adiabatic process is one that follows the relation

(a)

pρ=constant
(b)

pργ=constant
(c)

pρn=constant
(d)

v=constant
Answer:

Option (b)

5.

Which of the following is the basic equation of compressible fluid flow ?

(a)

Continuity equation
(b)

Momentum equation
(c)

Energy equation
(d)

All of the above
Answer:

Option (d)

6.

Sonic velocity (C) for the adiabatic process is given as

(a)

C=γRT3
(b)

C=γRT
(c)

C=γ2RT
(d)

C=γRT
Answer:

Option (b)

7.

The flow is said to be subsonic when Mach number is

(a)

equal to unity
(b)

less than unity
(c)

greater than unity
(d)

none of the above
Answer:

Option (b)

8.

The flow is said to be supersonic when the Mach number is

(a)

equal to unity
(b)

less than unity
(c)

greater than unity
(d)

none of the above
Answer:

Option (c)

9.

What is the Mach number?

(a)

Speed of object ×speed of sound
(b)

Speed of object/speed of sound
(c)

Speed of object + speed of sound
(d)

Speed of object-speed of sound
Answer:

Option (b)

10.

Which of the following denotes the effect of compressibility in fluid flow ?

(a)

Weber number
(b)

Mach number
(c)

Euler number
(d)

Reynolds number
Answer:

Option (b)

Showing 1 to 10 out of 32 Questions
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