Engineering Questions with Answers - Multiple Choice Questions

# MCQs on Fluid Flow Methods and Types

1 - Question

In which method of fluid flow analysis do we describe the motion parameters at a point?
a) Langragian method
b) Eulerian Method
c) Control volume analysis
d) None of the mentioned

b
Explanation: In Eulerian method,we describe velocity, acceleration pressure etc at a point in flow field.

2 - Question

Which method is most commonly used in fluid mechanics for analysis?
a) Langragian method
b) Eulerian Method
c) Control volume analysis
d) None of the mentioned

b
Explanation: In Eulerian method,we describe velocity, acceleration pressure etc at a point in flow field.hence, it is also most commonly used in fluid mechanics.

3 - Question

.In unsteady flow, the flow parameters change with respect to position.
a) True
b) False

b
Explanation: In unsteady flow, the flow parameters change with respect to time.

4 - Question

Uniform flow is defined as the type of flow in which acceleration is zero i.e velocity is constant.
a) True
b) False

b
Explanation: Uniform flow is defined as the type of flow in which the velocity does not change with respect to space. It can change with respect to time.

5 - Question

In laminar flow fluid particles flow along a streamline.
a) True
b) False

a
Explanation: As per the definition of laminar flow, fluid particles flow in a streamlined manner.

6 - Question

Eddies formed in the turbulent flow are major cause of the energy loss in the turbulent flow.
a) True
b) False

a
Explanation: Due to zig zag motion of particles eddies are formed and they lead to energy losses.

7 - Question

For compressible flow specific gravity remains same.
a) True
b) False

b
Explanation: For compressible flow, density changes and therefore specific gravity changes.

8 - Question

When the flow particles flow in zigzag manner and rotate about their own axis it is what type of flow?
a) Turbulent flow
b) Irrotational flow
c) Rotational flow
d) None of the mentioned

d
Explanation: It is random manner of fluid flow.

9 - Question

If the velocity is function of two space coordinates along with time then fluid flow is three dimensional in nature.
a) True
b) False

a
Explanation: If the velocity is function of three space coordinates along with time then fluid flow is three dimensional in nature.

10 - Question

What is unit for flow rate for gases?
a) m3/s
b) litres/s
c) cm3/s
d) kgf/s