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!

So, are you ready to put your Flow in Open Channels knowledge to the test? Let's get started with our carefully curated MCQs!

Flow in Open Channels MCQs | Page 17 of 20

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Q161.
The specific energy of a triangular channel is 5.06m and the depth of the channel is 5m having side slope of 1H:4V, then calculate the value of C. Given: S₀=1 in 1000.

a.

40

b.

45

c.

50

d.

55

Discuss
Answer: (b).45
Q162.
The dimensions of a rectangular channel are 3m in depth and 4m in width. Calculate the bed slope of the channel if the specific energy is 3.13m. [C=50]

a.

1 in 1000

b.

1 in 1100

c.

1 in 1200

d.

1 in 1300

Discuss
Answer: (c).1 in 1200
Q163.
The depth of a trapezoidal channel section is 2m, base width of 3m and has a side slope of 1H:2V. Calculate n if the bed slope is 1 in 1000.

a.

0.012

b.

0.013

c.

0.014

d.

0.015

Discuss
Answer: (b).0.013
Q164.
The specific energy of a channel section is 1.01m and the velocity of flow is 0.5m⁄s, calculate the depth of flow.

a.

0.8m

b.

1.0m

c.

1.2m

d.

1.4m

Discuss
Answer: (b).1.0m
Q165.
Calculate the velocity of flow through a channel having depth of 1.2m and specific energy equal to 1.24m.

a.

0.6 m/s

b.

0.7 m/s

c.

0.8m/s

d.

0.9m/s

Discuss
Answer: (d).0.9m/s
Q166.
The specific energy of a rectangular channel having dimensions 2m×3m is 3.095m. Calculate the friction factor.

a.

0.01

b.

0.02

c.

0.03

d.

0.04

Discuss
Answer: (c).0.03
Q167.
Calculate the average shear stress for a rectangular channel having depth 0.5m, width 0.8m if the specific energy is 0.56m.

a.

2.32 N/m²

b.

3.32 N/m²

c.

4.32 N/m²

d.

5.32 N/m²

Discuss
Answer: (c).4.32 N/m²
Q168.
Calculate the specific energy for the most economical rectangular channel having depth 2m and width 4m if the bed slope of the channel is 1 in 1200. C = 35.

a.

2.05m

b.

3.05m

c.

4.05m

d.

5.05m

Discuss
Answer: (a).2.05m
Q169.
Estimate the specific energy for the most economical trapezoidal channel section having depth of 5m, side slope of 1H:4V and bed slope of 1 in 1200.

a.

1.14m

b.

2.14m

c.

3.14m

d.

4.14m

Discuss
Answer: (b).2.14m
Q170.
What is the condition for critical flow?

a.

\(\frac{Q}{g} = \frac{A}{T}\)

b.

\(\frac{Q^2}{g} = \frac{A^2}{T}\)

c.

\(\frac{Q}{g} = \frac{A^3}{T}\)

d.

\(\frac{Q^2}{g} = \frac{A^3}{T}\)

Discuss
Answer: (d).\(\frac{Q^2}{g} = \frac{A^3}{T}\)
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