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 5 of 13

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Q41.
Specific energy in GVF changes only under which of the following conditions.

a.

Difference between bed slope and slope of energy line

b.

Both bed slope and energy slope are equal

c.

Presence of bed slope alone

d.

Presence of energy slope alone

Discuss
Answer: (a).Difference between bed slope and slope of energy line
Q42.
The channel is prismatic in case of a GVF.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q43.
Calculate the value of frictional slope for a rectangular channel having width 5m and depth 3m. Given:V=2 m/s and n = 0.012.

a.

2.01×10⁻⁴

b.

3.01×10⁻⁴

c.

4.01×10⁻⁴

d.

5.01×10⁻⁴

Discuss
Answer: (d).5.01×10⁻⁴
Q44.
Calculate the frictional slope of a triangular channel having depth 2.5m and side slope of 1H:2V, if the rate of change of specific energy is 1.6×10⁻⁵m/s. Given:V=1.57 m/s

a.

5.53×10⁻⁴m

b.

6.53×10⁻⁴m

c.

7.53×10⁻⁴m

d.

8.53×10⁻⁴m

Discuss
Answer: (c).7.53×10⁻⁴m
Q45.
What happens to the depth of flow when there is an obstruction in the path?

a.

Remains the same

b.

Increases

c.

Decreases

d.

Flow stops

Discuss
Answer: (b).Increases
Q46.
Calculate the value of Froude’s number if the ratio of rate of change of specific energy and rate of change of depth is 0.9.

a.

0.29

b.

0.30

c.

0.31

d.

0.32

Discuss
Answer: (c).0.31
Q47.
Which of the following assumptions is true in case of GVF?

a.

The flow is not steady

b.

The streamlines are parallel

c.

Pressure distribution is not hydrostatic

d.

Channel has varying alignment and shape

Discuss
Answer: (b).The streamlines are parallel
Q48.
The ratio of bed slope and the slope of energy line is 2, calculate the value of slope of energy line if the length of back water curve is 20000m. Given: E₁=2m and E₂=5m.

a.

0.5×10⁻⁴

b.

1.0×10⁻⁴

c.

1.5×10⁻⁴

d.

2.0×10⁻⁴

Discuss
Answer: (c).1.5×10⁻⁴
Q49.
The depth and widths of a trapezoidal channel section are 2m and 4m respectively and the side slope of 1H:5V. Calculate the rate of change of depth if the rate of change of specific energy is 1.5×10⁻⁵. Given: S₀=1 in 1000,C=35.

a.

0.5×10⁻⁵m

b.

1.0×10⁻⁵m

c.

1.5×10⁻⁵m

d.

2.0×10⁻⁵m

Discuss
Answer: (c).1.5×10⁻⁵m
Q50.
Calculate the head loss in a channel if the length of the back water curve is 30000m and the slope of the energy line is 4×10⁻⁴.

a.

8m

b.

10m

c.

12m

d.

14m

Discuss
Answer: (c).12m
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