Railways Exam > Railways Questions > A hydraulic jump occurs at the spillway. The ...
Start Learning for Free
A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.
What is the energy dissipated in m (approximate)?
- a)27
- b)10.5
- c)15
- d)42
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A hydraulic jump occurs at the spillway. The depth before the jump is ...
The energy dissipation is given by
= 10.55 m
= 10.55 m
Most Upvoted Answer
A hydraulic jump occurs at the spillway. The depth before the jump is ...
To calculate the energy dissipated in a hydraulic jump, we can use the principles of conservation of energy. A hydraulic jump occurs when a high-velocity flow rapidly transitions to a lower-velocity flow, causing a sudden increase in water depth.
The energy dissipated in a hydraulic jump can be calculated using the following equation:
E = (h1 - h2) * g * A
Where:
E is the energy dissipated
h1 is the initial depth before the jump
h2 is the sequent depth after the jump
g is the acceleration due to gravity (approximated as 9.8 m/s^2)
A is the cross-sectional area of the flow
In this case, the initial depth before the jump is given as 0.2 m and the sequent depth is given as 3.2 m. We can assume the cross-sectional area of the flow remains constant throughout the hydraulic jump.
Let's calculate the energy dissipated using the given values:
E = (0.2 - 3.2) * 9.8 * A
Since the cross-sectional area is not given, we can assume it to be 1 square meter for simplicity.
E = (0.2 - 3.2) * 9.8 * 1
E = (-3) * 9.8
E = -29.4
The negative sign indicates that energy is being dissipated, which is expected in a hydraulic jump. However, the question asks for the energy dissipated in positive terms. Therefore, we take the absolute value of the result:
|E| = |-29.4| = 29.4
Rounded to the nearest whole number, the energy dissipated is approximately 29 m.
The closest option to 29 in the given answer choices is option 'B' which is 10.5. However, none of the options provided match the calculated value of 29. Therefore, none of the given answer choices are correct.
The energy dissipated in a hydraulic jump can be calculated using the following equation:
E = (h1 - h2) * g * A
Where:
E is the energy dissipated
h1 is the initial depth before the jump
h2 is the sequent depth after the jump
g is the acceleration due to gravity (approximated as 9.8 m/s^2)
A is the cross-sectional area of the flow
In this case, the initial depth before the jump is given as 0.2 m and the sequent depth is given as 3.2 m. We can assume the cross-sectional area of the flow remains constant throughout the hydraulic jump.
Let's calculate the energy dissipated using the given values:
E = (0.2 - 3.2) * 9.8 * A
Since the cross-sectional area is not given, we can assume it to be 1 square meter for simplicity.
E = (0.2 - 3.2) * 9.8 * 1
E = (-3) * 9.8
E = -29.4
The negative sign indicates that energy is being dissipated, which is expected in a hydraulic jump. However, the question asks for the energy dissipated in positive terms. Therefore, we take the absolute value of the result:
|E| = |-29.4| = 29.4
Rounded to the nearest whole number, the energy dissipated is approximately 29 m.
The closest option to 29 in the given answer choices is option 'B' which is 10.5. However, none of the options provided match the calculated value of 29. Therefore, none of the given answer choices are correct.
Attention Railways Students!
To make sure you are not studying endlessly, EduRev has designed Railways study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Railways.
|
Explore Courses for Railways exam
|
|
Similar Railways Doubts
Top Courses for RailwaysView all
A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer?
Question Description
A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer?.
A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer?.
Solutions for A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways.
Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.
Here you can find the meaning of A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A hydraulic jump occurs at the spillway. The depth before the jump is 0.2 m. The sequent depth is 3.2 m.What is the energy dissipated in m (approximate)?a)27b)10.5c)15d)42Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Railways tests.
|
|
Explore Courses for Railways exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup