Railways Exam > Railways Questions > Hydraulic grade line as compared to the centr...
Start Learning for Free
Hydraulic grade line as compared to the centre line of conduct ______.
- a)Should always be above
- b)Should be always below
- c)Should always be parallel
- d)May be above or below
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Hydraulic grade line as compared to the centre line of conduct ______....
Bernoulli's equation along streamlines
Total head (H) = Pressure head (P/ρg) + Kinetic head (v2/2g) + Potential head (z)
Total head (H) = Hydraulic gradient line ((P/ρg) + z) + Kinetic head (v2/2g)
The line representing the sum of pressure head, datum head, and velocity head with respect to some reference line is known as total energy line (T.G.L).
The line representing the sum of pressure head and potential head or datum head with respect to some reference line is the hydraulic gradient line (H.G.L) which is always above compared to the centre line of conduct.
Most Upvoted Answer
Hydraulic grade line as compared to the centre line of conduct ______....
Hydraulic Grade Line (HGL) and Center Line of Conduit (CLC) are two important terms used in fluid mechanics. HGL refers to the line that represents the total head of the fluid at each point in a pipeline while CLC refers to the center line of the pipe or conduit. In the context of hydraulic engineering, it is important to understand the relationship between these two lines.
Hydraulic Grade Line (HGL) and Center Line of Conduit (CLC)
Hydraulic Grade Line (HGL) is the line that represents the total head of the fluid at each point in a pipeline. It is the sum of the pressure head and the elevation head. The pressure head is the height of the fluid above a reference point while the elevation head is the height of the point above a reference plane. The HGL is a graphical representation of the energy of the fluid.
Center Line of Conduit (CLC) is the center line of the pipe or conduit. It is the line that passes through the center of the pipe and is used as a reference point for measuring the location of other points in the pipeline.
Relationship between HGL and CLC
The hydraulic grade line should always be above the center line of the conduit. This is because if the HGL is below the CLC, it means that the pressure in the pipeline is negative or the fluid is flowing in the opposite direction. This is not desirable as it can lead to cavitation, which can damage the pipeline and reduce its efficiency.
In general, the HGL and CLC should be parallel to each other. This means that the slope of the HGL should be equal to the slope of the CLC. If the HGL is steeper than the CLC, it means that the velocity of the fluid is too high, which can cause erosion and turbulence. On the other hand, if the HGL is flatter than the CLC, it means that the velocity of the fluid is too low, which can cause sedimentation and blockages.
Conclusion
In conclusion, the hydraulic grade line should always be above the center line of the conduit in order to ensure that the pressure in the pipeline is positive and the fluid is flowing in the desired direction. Additionally, the HGL and CLC should be parallel to each other in order to ensure that the velocity of the fluid is within acceptable limits.
Hydraulic Grade Line (HGL) and Center Line of Conduit (CLC)
Hydraulic Grade Line (HGL) is the line that represents the total head of the fluid at each point in a pipeline. It is the sum of the pressure head and the elevation head. The pressure head is the height of the fluid above a reference point while the elevation head is the height of the point above a reference plane. The HGL is a graphical representation of the energy of the fluid.
Center Line of Conduit (CLC) is the center line of the pipe or conduit. It is the line that passes through the center of the pipe and is used as a reference point for measuring the location of other points in the pipeline.
Relationship between HGL and CLC
The hydraulic grade line should always be above the center line of the conduit. This is because if the HGL is below the CLC, it means that the pressure in the pipeline is negative or the fluid is flowing in the opposite direction. This is not desirable as it can lead to cavitation, which can damage the pipeline and reduce its efficiency.
In general, the HGL and CLC should be parallel to each other. This means that the slope of the HGL should be equal to the slope of the CLC. If the HGL is steeper than the CLC, it means that the velocity of the fluid is too high, which can cause erosion and turbulence. On the other hand, if the HGL is flatter than the CLC, it means that the velocity of the fluid is too low, which can cause sedimentation and blockages.
Conclusion
In conclusion, the hydraulic grade line should always be above the center line of the conduit in order to ensure that the pressure in the pipeline is positive and the fluid is flowing in the desired direction. Additionally, the HGL and CLC should be parallel to each other in order to ensure that the velocity of the fluid is within acceptable limits.
Free Test
FREE
| Start Free Test |
Community Answer
Hydraulic grade line as compared to the centre line of conduct ______....
The correct answer is D..
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
|
|
Top Courses for RailwaysView all
Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer?
Question Description
Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. 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 Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer?.
Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. 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 Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. 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 Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Hydraulic grade line as compared to the centre line of conduct ______.a)Should always be aboveb)Should be always belowc)Should always be paralleld)May be above or belowCorrect answer is option 'A'. 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