Explore topic-wise MCQs in Fluid Mechanics.

This section includes 12 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.

Estimate the conveyance of a circular channel of diameter 0.7m having manning s co efficient equal to 0.012.

A. 6.83m<sup>3</sup>/s
B. 7.83m<sup>3</sup>/s
C. 8.83m<sup>3</sup>/s
D. 9.83m<sup>3</sup>/s
Answer» E.
2.

Determine the conveyance of a triangular section having area 30m^2 and perimeter 15m. (C = 40)

A. 1695m<sup>3</sup>/s
B. 1696m<sup>3</sup>/s
C. 1697m<sup>3</sup>/s
D. 1698m<sup>3</sup>/s
Answer» D. 1698m<sup>3</sup>/s
3.

Determine the conveyance of a trapezoidal channel having depth 3m, width 9m, side slope 1H:2V and the manning s co efficient is 0.03.

A. 864.79m<sup>3</sup>/s
B. 865.79m<sup>3</sup>/s
C. 866.79m<sup>3</sup>/s
D. 867.79m<sup>3</sup>/s
Answer» C. 866.79m<sup>3</sup>/s
4.

Calculate the conveyance of a rectangular channel having depth 0.5m and width 0.8m. C = 50.

A. 6.42m<sup>3</sup> s
B. 7.42m<sup>3</sup> s
C. 8.42m<sup>3</sup> s
D. 9.42m<sup>3</sup> s
Answer» E.
5.

Calculate the average shear stress if the friction factor is 0.28 and velocity of flow is 1.5m s.

A. 60N/m<sup>2</sup>
B. 70N/m<sup>2</sup>
C. 80N/m<sup>2</sup>
D. 90N/m<sup>2</sup>
Answer» D. 90N/m<sup>2</sup>
6.

Estimate the value of Chezy s constant if the value of the friction factor is 0.031.

A. 35
B. 40
C. 45
D. 50
Answer» E.
7.

Determine the average shear stress of a trapezoidal channel having base width 6m, depth 5m and side slope 1H:3V if the bed slope of the channel is 1 in 700.

A. 28.45N/m<sup>2</sup>
B. 38.45N/m<sup>2</sup>
C. 48.45N/m<sup>2</sup>
D. 58.45N/m<sup>2</sup>
Answer» B. 38.45N/m<sup>2</sup>
8.

The average shear stress for a circular channel running full is 32.7N m2 and the diameter of the channel is 8m then calculate the bed slope of the channel.

A. 1 in 500
B. 1 in 600
C. 1 in 700
D. 1 in 800
Answer» C. 1 in 700
9.

Calculate the bed slope of a triangular channel having depth 12m and side slope of 1H:6V if the average shear stress is 9.6138 N/m2.

A. 1 in 500
B. 1 in 1000
C. 1 in 1500
D. 1 in 2000
Answer» C. 1 in 1500
10.

The dimensions of a rectangular channel section are 3m in width and 1m in depth. Calculate the average shear stress if the bed slope of the channel is 1 in 500.

A. 9.772 N/m<sup>2</sup>
B. 10.772N/m<sup>2</sup>
C. 11.772N/m<sup>2</sup>
D. 12.772N/m<sup>2</sup>
Answer» D. 12.772N/m<sup>2</sup>
11.

A circular section which is (3/4)th full is having a wetted perimeter of 9.42m. Calculate the value of C if n is equal to 0.025.

A. 30
B. 40
C. 50
D. 60
Answer» C. 50
12.

The area of a circular section which is running half full is 19.625m2 and the value of the chezy s constant is 60.

A. 0.019
B. 0.020
C. 0.021
D. 0.022
Answer» B. 0.020