Non Uniform Flow in Channels MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Non Uniform Flow in 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 Non Uniform Flow in 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 Non Uniform Flow in Channels mcq questions that explore various aspects of Non Uniform Flow in Channels problems. Each MCQ is crafted to challenge your understanding of Non Uniform Flow in 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 Non Uniform Flow in Channels MCQs are your pathway to success in mastering this essential Fluid Mechanics topic.

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Non Uniform Flow in Channels MCQs | Page 4 of 13

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Q31.
What is the expression for head loss in case of a GVF?

a.

hf = L⁄2 Sf

b.

hf = LSf

c.

hf = 2LSf

d.

hf = 3LSf

Discuss
Answer: (b).hf = LSf
Q32.
What is the expression for the length of the backwater curve?

a.

L = \(\frac{E_2-E_1}{S_f-S_0}\)

b.

L = \(\frac{E_2-E_1}{S_f}\)

c.

L = \(\frac{E_2-E_1}{S_0-S_f}\)

d.

L = \(\frac{E_2-E_1}{S_0}\)

Discuss
Answer: (c).L = \(\frac{E_2-E_1}{S_0-S_f}\)
Q33.
Calculate the head loss if the length of the back water curve is 25000m and Sf=0.00006.

a.

1m

b.

1.5m

c.

2.0m

d.

2.5m

Discuss
Answer: (b).1.5m
Q34.
Estimate the slope of energy line in a GVF having length of the back water curve 30000m and head loss of 1m.

a.

1.33×10⁻⁵

b.

2.33×10⁻⁵

c.

3.33×10⁻⁵

d.

4.33×10⁻⁵

Discuss
Answer: (c).3.33×10⁻⁵
Q35.
Determine the length of the back water curve if E₁=2.8m and E₂=5.6m. Given:S₀=0.00009, Sf= 0.00004.

a.

26000m

b.

36000m

c.

46000m

d.

56000m

Discuss
Answer: (d).56000m
Q36.
If the difference between specific energies is 2m calculate the rate of change of specific energies if the length of the back water curve is 26314m.

a.

6.6×10⁻⁵m

b.

7.6×10⁻⁵m

c.

8.6×10⁻⁵m

d.

9.6×10⁻⁵m

Discuss
Answer: (b).7.6×10⁻⁵m
Q37.
Calculate the bed slope of the channel if the slope of the energy line 0.00024 and the length of the back water curve is 104166.67m. Given:E₁-E₂=3m.

a.

2.28×10⁻⁵

b.

3.28×10⁻⁵

c.

4.28×10⁻⁵

d.

5.28×10⁻⁵

Discuss
Answer: (d).5.28×10⁻⁵
Q38.
If the depths in a channel are 2m and 4m and the velocities are 0.5 m/s and 0.3m/s, calculate the difference between specific energies.

a.

2m

b.

3m

c.

4m

d.

5m

Discuss
Answer: (a).2m
Q39.
Calculate the slope of the energy line if the bed slope of the channel is 4.81×10⁻⁵ if the depths of the channel are 2.7m and 4.7m and velocities are 1 m/s and 0.5m/s respectively.

a.

0.00002

b.

0.00003

c.

0.00004

d.

0.00005

Discuss
Answer: (d).0.00005
Q40.
The dimensions of a rectangular channel is 3m×2m and the bed slope of the channel is 1 in 1000, calculate the rate of change of depth if the rate of change of specific energy is 2×10⁻⁵m. Given: n = 0.010

a.

1.43×10⁻⁵m

b.

2.43×10⁻⁵m

c.

3.43×10⁻⁵m

d.

4.43×10⁻⁵m

Discuss
Answer: (c).3.43×10⁻⁵m
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