Explore topic-wise MCQs in Fluid Mechanics.

This section includes 9 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_HYDRAULIC_RADIUS_OF_A_CIRCULAR_CHANNEL_IF_THE_RADIUS_IS_6M_AND_THE_CENTRAL_ANGLE_IS_70¬¨ àû.?$#

A. 0.58m
B. 0.68m
C. 0.78m
D. 0.88m
Answer» C. 0.78m
Discussion
2.

The discharge through a circular channel section is 14.67m3/s and the velocity of flow is 1.47m/s, calculate the radius of the section if Ɵ = 75°.$#
A. 2m
B. 3m
C. 4m
D. 5m
Answer» E.
Discussion
3.

The_hydraulic_radius_of_a_circular_channel_section_is_0.33m,_calculate_the_radius_of_the_channel_if_the_central_angle_is_60°.$#

A. 2m
B. 3m
C. 4m
D. 5m
Answer» D. 5m
Discussion
4.

Estimate the discharge through a circular channel section having radius 4m and depth 3m if the channel bed slope is 1 in 2000. Given: n = 0.015?

A. 15.8 m<sup>3</sup>/s
B. 16.8 m<sup>3</sup>/s
C. 17.8 m<sup>3</sup>/s
D. 18.8 m<sup>3</sup>/s
Answer» D. 18.8 m<sup>3</sup>/s
Discussion
5.

Calculate the discharge through a circular channel section if the depth is 5m, radius of the circular section is 3m and the bed slope is 1 in 1000. Given: C = 50.

A. 25.74 m<sup>3</sup>/s
B. 26.74 m<sup>3</sup>/s
C. 27.74 m<sup>3</sup>/s
D. 28.74 m<sup>3</sup>/s
Answer» D. 28.74 m<sup>3</sup>/s
Discussion
6.

Calculate the hydraulic radius of a circular channel having depth 6m and radius 4m.

A. 0.41m
B. 1.41m
C. 2.41m
D. 3.41m
Answer» D. 3.41m
Discussion
7.

Calculate the wetted perimeter of a circular channel if the depth of water is 2m and radius is 5m.

A. 9.27m
B. 10.27m
C. 11.27m
D. 12.27m
Answer» B. 10.27m
Discussion
8.

A circular channel section has water at a depth of 2m and the radius of the section is 4m, calculate the wetted area of the channel.

A. 6.87m<sup>2</sup>
B. 7.87m<sup>2</sup>
C. 8.87m<sup>2</sup>
D. 9.87m<sup>2</sup>
Answer» E.
Discussion
9.

Estimate the wetted perimeter of a circular channel having radius R and depth d, if the angle subtended at the centre is Ɵ.

A. <sup>RƟ</sup>⁄<sub>2</sub>
B. RƟ
C. 2RƟ
D. 3RƟ
Answer» D. 3R‚Äö√†√ú‚àö¬∫
Discussion