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 18 of 20

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Q171.
What is the condition for critical flow in case of maximum discharge?

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).\(\frac{Q^2}{g} = \frac{A^3}{T}\)
Q172.
Determine the velocity in case of critical flow having top width T and area A.

a.

V = gD

b.

V = \(\sqrt{gD}\)

c.

V = gD2

d.

V = g \(\frac{D}{2}\)

Discuss
Answer: (b).V = \(\sqrt{gD}\)
Q173.
Calculate the specific energy in case of rectangular channel having discharge Q and yc is the critical depth.

a.

E = \(\frac{y_c}{2}\)

b.

E = \(\frac{3}{2}\) yc

c.

E = 2yc

d.

E = 3yc

Discuss
Answer: (b).E = \(\frac{3}{2}\) yc
Q174.
Estimate the critical depth in case of a rectangular channel having usual dimensions.

a.

yc = \(\sqrt{\frac{q^2}{g}}\)

b.

yc = \(\sqrt[3]{\frac{q^2}{g}}\)

c.

yc = \(\sqrt{\frac{q}{g}}\)

d.

yc = \(\sqrt[3]{\frac{q}{g}}\)

Discuss
Answer: (b).yc = \(\sqrt[3]{\frac{q^2}{g}}\)
Q175.
Calculate the critical depth of a rectangular channel having width 3m and the discharge through it is 15 m³/s.

a.

0.36m

b.

1.36m

c.

2.36m

d.

3.36m

Discuss
Answer: (b).1.36m
Q176.
Calculate the total discharge through a rectangular channel having critical depth of 1.18m and the base width of the channel is 4m.

a.

16 m³/s

b.

20 m³/s

c.

24 m³/s

d.

28 m³/s

Discuss
Answer: (a).16 m³/s
Q177.
Calculate the minimum specific energy of a rectangular channel having critical depth of 1.5m.

a.

3.25m

b.

2.25m

c.

1.25m

d.

0.25m

Discuss
Answer: (b).2.25m
Q178.
The base width of a rectangular channel is 4m and the maximum discharge through the channel is 10 m³/s, calculate the specific energy.

a.

0.7m

b.

1.0m

c.

1.3m

d.

1.6m

Discuss
Answer: (c).1.3m
Q179.
The minimum specific energy of a rectangular channel is 1.3m and the base width of the channel is 10m, calculate the discharge through the channel.

a.

10 m³/s

b.

15 m³/s

c.

20m³/s

d.

25m³/s

Discuss
Answer: (d).25m³/s
Q180.
Calculate the maximum discharge through a triangular channel having a side slope of 1H:2V and the critical depth is 3m.

a.

15.26 m³/s

b.

16.26 m³/s

c.

17.26 m³/s

d.

18.26 m³/s

Discuss
Answer: (c).17.26 m³/s
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