Explore topic-wise MCQs in Fluid Mechanics.

This section includes 10 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.

Calculate the discharge through a most economical circular section in case of maximum velocity if the radius of the channel is 0.5m, bed slope of 1 in 500 and the value of n = 0.016.

A. 0.43 m3/s
B. 0.53 m3/s
C. 0.63 m3/s
D. 0.73 m3/s
Answer» B. 0.53 m3/s
2.

Calculate the hydraulic radius in case of maximum velocity if the radius of the section is 8m.

A. 7.87m
B. 6.87m
C. 5.87m
D. 4.87m
Answer» E.
3.

Estimate the value of wetted area of a circular section in case of maximum discharge if the radius of the channel is 7m.

A. 134m2
B. 144m2
C. 154m2
D. 164m2
Answer» B. 144m2
4.

What is the value of wetted perimeter of a circular section having radius 6m in case of maximum velocity?

A. 12.47m
B. 13.47m
C. 14.47m
D. 15.47m
Answer» C. 14.47m
5.

Calculate the wetted perimeter of the most economical circular section having radius 3m in case of maximum discharge.

A. 15.12m
B. 16.12m
C. 17.12m
D. 18.12m
Answer» C. 17.12m
6.

Calculate the wetted area of a circular channel section in case of maximum velocity.

A. 5.47m2
B. 6.47m2
C. 7.47m2
D. 8.47m2
Answer» B. 6.47m2
7.

Calculate the hydraulic radius of a circular channel in case of maximum discharge if the radius of the channel is 4m.

A. 1.7m
B. 2.0m
C. 2.3m
D. 2.6m
Answer» D. 2.6m
8.

Calculate the depth in a most economical circular section in case of maximum discharge.

A. 0.65D
B. 0.75D
C. 0.85D
D. 0.95DAnswer: d
Answer» E.
9.

What is the value of θ in a most economical circular section in case of maximum discharge?

A. 150°
B. 152°
C. 154°
D. 156°
Answer» D. 156°
10.

Estimate the hydraulic depth for a most economical circular channel section in case of maximum velocity.

A. 0.2D
B. 0.3D
C. 0.4D
D. 0.5D
Answer» C. 0.4D