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Test: Flow in Open Channel - 2 - Mechanical Engineering MCQ


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9 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Flow in Open Channel - 2

Test: Flow in Open Channel - 2 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Flow in Open Channel - 2 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Flow in Open Channel - 2 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Flow in Open Channel - 2 below.
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Test: Flow in Open Channel - 2 - Question 1

The hydraulic jump results when

Test: Flow in Open Channel - 2 - Question 2

The energy loss in a hydraulic jump is

Detailed Solution for Test: Flow in Open Channel - 2 - Question 2

Hydraulic jump is a case of rapidly varied flow. It occurs when a super-critical flow stream tries to reach its alternate depth in subcritica! mode. In the process it losses substantial energy and falls short of the alternate depth.

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Test: Flow in Open Channel - 2 - Question 3

What is the velocity of flow of water through a rectangular channel of 6 m wide and 3 m deep, When it is running full. The channel is having bed slope as 1 in 2000.
[Take Chezy’s constant C = 55]

Detailed Solution for Test: Flow in Open Channel - 2 - Question 3

b = 6 m, d = 3 m
A = b x d = 18 m2,
P = b + 2d - 6 + 6 = 12 



[Tips: This type of question can be solved by guessing about square root i.e. 2.42 = 5.76,2.62 = 6.76, 2.82 = 7.84].

Test: Flow in Open Channel - 2 - Question 4

How is the best hydraulic channel cross-section defined?

Test: Flow in Open Channel - 2 - Question 5

A rectangular channel with be most economical when the flow depth to bottom width are in the ratio

Detailed Solution for Test: Flow in Open Channel - 2 - Question 5


For minimum wetted perimeter, 
d = b/2
∴ d/b = 1.2

Test: Flow in Open Channel - 2 - Question 6

In open channel flow, a triangular section will be most economical when the vertex angle at the triangle base point is

Test: Flow in Open Channel - 2 - Question 7

The discharge through a trapezoidal channel is maximum when the top width equals

Test: Flow in Open Channel - 2 - Question 8

The best slope for the most economical trapezoidal section of an open channel is ..... to the horizontal.

Detailed Solution for Test: Flow in Open Channel - 2 - Question 8



for best side slope



or 
or 

or  

Test: Flow in Open Channel - 2 - Question 9

Most efficient channel section is

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