Flow in Open Channels MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Flow in Open Channels, a fundamental topic in the field of Fluid Mechanics. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Flow in Open Channels MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Flow in Open Channels mcq questions that explore various aspects of Flow in Open Channels problems. Each MCQ is crafted to challenge your understanding of Flow in Open Channels principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Fluid Mechanics tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Flow in Open Channels MCQs are your pathway to success in mastering this essential Fluid Mechanics topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Flow in Open Channels. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Flow in Open Channels MCQs | Page 7 of 20

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Q61.
The discharge of water through a trapezoidal channel is 1.5 m³/s, the base width of the channel is 7m, the depth is 2m and the side slope is 1H:3V. Bed slope is 1 in 2000, determine the value of the Chezy’s constant.

a.

50

b.

55

c.

60

d.

65

Discuss
Answer: (c).60
Q62.
Find the discharge through a circular channel section having diameter of 5m, the value of Chezy’s constant is 90 and the bed slope is 1 in 4000.

a.

13.61 m³/s

b.

14.61 m³/s

c.

15.61 m³/s

d.

16.61 m³/s

Discuss
Answer: (c).15.61 m³/s
Q63.
The discharge through a rectangular channel is 16.62 m³/s and the wetted area is equal to 12m². The width of the channel is 6m and the bed slope is 1 in 1000, calculate the value of the Chezy’s constant.

a.

35

b.

40

c.

45

d.

50

Discuss
Answer: (b).40
Q64.
Calculate the discharge through a triangular channel having a normal depth of 4m, wetted area equalling to 8m² and having side slope and bed slopes 1/2 and 1 in 500 respectively. C = 40.

a.

13.54 m³/s

b.

14.54 m³/s

c.

15.54 m³/s

d.

16.54 m³/s

Discuss
Answer: (a).13.54 m³/s
Q65.
The perimeter of a circular channel section is 18.84m, calculate the discharge through the channel when it is running full having a bed slope of 1 in 1500 and C = 60.

a.

53.62 m³/s

b.

63.62 m³/s

c.

73.62 m³/s

d.

83.62 m³/s

Discuss
Answer: (a).53.62 m³/s
Q66.
The discharge through a trapezoidal channel is 61 m³/s and the depth and widths of the channel are 4m and 5m respectively. The wetted perimeter of the channel is 13.16m, calculate the bed slope of the channel if the value of C is 45.

a.

1 in 500

b.

1 in 1000

c.

1 in 1500

d.

1 in 2000

Discuss
Answer: (a).1 in 500
Q67.
The velocity of flow through a channel is 0.74 m/s and the hydraulic radius of the channel is 1.11m, calculate the value of C if the bed slope of the channel is 1 in 5000.

a.

40

b.

45

c.

50

d.

55

Discuss
Answer: (c).50
Q68.
Estimate the discharge through a channel having area 24m² and perimeter 16m if the bed slope of the channel is equal to 1 in 1000 and C = 70.

a.

62 m³/s

b.

63 m³/s

c.

64 m³/s

d.

65 m³/s

Discuss
Answer: (d).65 m³/s
Q69.
A rectangular channel is having depth 2m and width 3m, bed slope of 1 in 700. The value of manning’s roughness co efficient (n) is 0.06, estimate the discharge through the channel.

a.

2.42m³⁄s

b.

3.42m³⁄s

c.

4.42m³⁄s

d.

5.42m³⁄s

Discuss
Answer: (b).3.42m³⁄s
Q70.
Estimate the discharge through a triangular channel having depth 7m and side slope 1H:5V in which the bed slope is 1 in 1000. Manning’s co efficient = 0.03.

a.

8.07m³⁄s

b.

9.07m³⁄s

c.

10.07m³⁄s

d.

11.07m³⁄s

Discuss
Answer: (a).8.07m³⁄s
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