Explore topic-wise MCQs in Fluid Mechanics.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.

1.

Relative roughness is_________

A. ϵ/D
B. ϵ*D
C. ϵ/Dm
D. ϵgD
Answer» B. ϵ*D
Discussion
2.

WHAT_HAPPENS_TO_THE_HEAD_LOSS_WHEN_THE_FLOW_RATE_IS_DOUBLED??$

A. Doubles
B. Same
C. Triples
D. Four times
Answer» E.
Discussion
3.

Relative roughness is_________$

A. ϵ/D
B. ϵ*D
C. ϵ/Dm
D. ϵgD
Answer» B. ‚âà√¨¬¨¬µ*D
Discussion
4.

What are the reasons for minor head loses in a pipe?

A. Friction
B. Heat
C. Valves and bends
D. Temperature
Answer» D. Temperature
Discussion
5.

The formula for hydraulic diameter is______

A. 4A/P
B. 4AP
C. 4AV
D. 4V
Answer» B. 4AP
Discussion
6.

Loss of head due to friction is __________

A. Directly proportional to hydraulic radius
B. Inversely proportional to velocity
C. Inversely proportional to hydraulic radius
D. Directly proportional to gravitational constant
Answer» D. Directly proportional to gravitational constant
Discussion
7.

Which among the following is formula for friction factor of circular pipes?

A. 16/Re
B. 64/Re
C. Re/16
D. Re/64
Answer» C. Re/16
Discussion
8.

Darcy- Weisbach equation gives relation between__________

A. Pressure and temperature
B. Mass, volume and pressure
C. Head loss and pressure loss
D. Pressure loss only
Answer» D. Pressure loss only
Discussion
9.

How do we calculate losses for a larger range of Reynolds number?

A. Moody chart
B. Bar chart
C. Scatter chart
D. Column histogram
Answer» B. Bar chart
Discussion
10.

Which among the following is the formula for friction factor(f)?

A. f = 0.079*Re<sup>0.25</sup>
B. f = 0.079/Re<sup>0.25</sup>
C. f = 0.079/Re<sup>0.5</sup>
D. f = 0.079*Re<sup>0.5</sup>
Answer» C. f = 0.079/Re<sup>0.5</sup>
Discussion
11.

Which among the following does not depend on the friction factor?

A. Pipe diameter
B. Fluid density
C. Viscosity
D. Weight
Answer» E.
Discussion