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 6 of 20

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Q51.
Calculate the side slope of a trapezoidal channel section having base 8m, depth 4m and the hydraulic radius is 2.36m.

a.

1⁄6

b.

1⁄3

c.

1⁄2

d.

1⁄4

Discuss
Answer: (c).1⁄2
Q52.
Calculate the top width of a trapezoidal channel section having a side slope1H:4V, base of 5m and the wetted area is 17.25m².

a.

5.5m

b.

6.5m

c.

7.5m

d.

8.5m

Discuss
Answer: (b).6.5m
Q53.
The product Zy in a Trapezoidal channel is 2 and the side slope is 1/2. Calculate the wetted perimeter of the channel section if the wetted is 32m².

a.

13.94m

b.

14.94m

c.

15.94m

d.

16.94m

Discuss
Answer: (b).14.94m
Q54.
The top width of a trapezoidal channel is 12m, the bottom width of the channel is 6m and the side slope is 1H:2V, calculate the wetted perimeter.

a.

17.41m

b.

18.41m

c.

19.41m

d.

20.41m

Discuss
Answer: (c).19.41m
Q55.
The wetted area of a trapezoidal section is 15m² and the top width is 6m, calculate the section factor.

a.

23.72

b.

24.72

c.

25.72

d.

26.72

Discuss
Answer: (a).23.72
Q56.
The ratio of section factor and hydraulic depth in a trapezoidal section is 324/25, calculate the top width if the total wetted area of the channel is 24m².

a.

4m

b.

5m

c.

6m

d.

7m

Discuss
Answer: (d).7m
Q57.
Calculate the discharge through a channel having a bed slope 1 in 1000, area 12m², hydraulic radius of 1.2m and Chezy’s constant being equal to 50.

a.

17.98 m³/s

b.

18.98 m³/s

c.

19.98 m³/s

d.

20.98 m³/s

Discuss
Answer: (d).20.98 m³/s
Q58.
What is the dimension of C?

a.

LT

b.

L¹/² T⁻¹

c.

LT⁻¹

d.

L⁻¹ T⁻¹

Discuss
Answer: (b).L¹/² T⁻¹
Q59.
The depth and widths of a rectangular channel are 2m and 5m respectively, calculate the discharge of water through the channel if the bed slope is 1 in 500 and Chezy’s constant being 60.

a.

28.27 m³/s

b.

38.27 m³/s

c.

48.27 m³/s

d.

58.27 m³/s

Discuss
Answer: (a).28.27 m³/s
Q60.
Estimate the discharge of water through a triangular channel having depth 3m, side slope 1H:2V, the bed slope is 1 in 500 and C=60.

a.

14.48 m³/s

b.

15.48 m³/s

c.

16.48 m³/s

d.

17.48 m³/s

Discuss
Answer: (c).16.48 m³/s
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