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Which one of the following statements is correct?
- a)Hydraulic grade line and energy grade line are the same in fluid problems
- b)Energy grade line lies above the hydraulic grade line and is always parallelto it.
- c)Energy grade line lies above the hydraulic grade line and they are separatedfrom each other by a vertical distance equal to the velocity head.
- d)The hydraulic grade line slopes upwards meeting the energy grade at theexit of flow.
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following statements is correct?a)Hydraulic grade lin...
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Which one of the following statements is correct?a)Hydraulic grade lin...
Explanation:
Hydraulic grade line (HGL) and energy grade line (EGL) are used in fluid mechanics to represent the pressure and energy distribution in a fluid flowing in a pipe or channel.
- Hydraulic Grade Line (HGL): It is the line that represents the pressure head of the fluid at any point along the flow path. It is also known as the piezometric head or pressure head. It is a measure of the potential energy of the fluid due to its pressure.
- Energy Grade Line (EGL): It is the line that represents the total energy of the fluid at any point along the flow path. It is also known as the total head or Bernoulli's head. It is a measure of the kinetic energy and potential energy of the fluid due to its velocity and pressure.
The correct statement is option 'C': Energy grade line lies above the hydraulic grade line and they are separated from each other by a vertical distance equal to the velocity head.
This means that the EGL is always above the HGL and the difference between them is equal to the velocity head of the fluid. The velocity head represents the kinetic energy of the fluid due to its velocity.
Therefore, the EGL and HGL can be used to determine the pressure and energy losses in a fluid system. If the EGL and HGL coincide, there is no energy loss in the system. If the EGL is above the HGL, there is a net gain in energy, and if the EGL is below the HGL, there is a net loss in energy.
In summary, the EGL and HGL are important concepts in fluid mechanics to understand the pressure and energy distribution in a fluid system.
Hydraulic grade line (HGL) and energy grade line (EGL) are used in fluid mechanics to represent the pressure and energy distribution in a fluid flowing in a pipe or channel.
- Hydraulic Grade Line (HGL): It is the line that represents the pressure head of the fluid at any point along the flow path. It is also known as the piezometric head or pressure head. It is a measure of the potential energy of the fluid due to its pressure.
- Energy Grade Line (EGL): It is the line that represents the total energy of the fluid at any point along the flow path. It is also known as the total head or Bernoulli's head. It is a measure of the kinetic energy and potential energy of the fluid due to its velocity and pressure.
The correct statement is option 'C': Energy grade line lies above the hydraulic grade line and they are separated from each other by a vertical distance equal to the velocity head.
This means that the EGL is always above the HGL and the difference between them is equal to the velocity head of the fluid. The velocity head represents the kinetic energy of the fluid due to its velocity.
Therefore, the EGL and HGL can be used to determine the pressure and energy losses in a fluid system. If the EGL and HGL coincide, there is no energy loss in the system. If the EGL is above the HGL, there is a net gain in energy, and if the EGL is below the HGL, there is a net loss in energy.
In summary, the EGL and HGL are important concepts in fluid mechanics to understand the pressure and energy distribution in a fluid system.
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Which one of the following statements is correct?a)Hydraulic grade line and energy grade line are the same in fluid problemsb)Energy grade line lies above the hydraulic grade line and is always parallelto it.c)Energy grade line lies above the hydraulic grade line and they are separatedfrom each other by a vertical distance equal to the velocity head.d)The hydraulic grade line slopes upwards meeting the energy grade at theexit of flow.Correct answer is option 'C'. Can you explain this answer?
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Which one of the following statements is correct?a)Hydraulic grade line and energy grade line are the same in fluid problemsb)Energy grade line lies above the hydraulic grade line and is always parallelto it.c)Energy grade line lies above the hydraulic grade line and they are separatedfrom each other by a vertical distance equal to the velocity head.d)The hydraulic grade line slopes upwards meeting the energy grade at theexit of flow.Correct answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which one of the following statements is correct?a)Hydraulic grade line and energy grade line are the same in fluid problemsb)Energy grade line lies above the hydraulic grade line and is always parallelto it.c)Energy grade line lies above the hydraulic grade line and they are separatedfrom each other by a vertical distance equal to the velocity head.d)The hydraulic grade line slopes upwards meeting the energy grade at theexit of flow.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is correct?a)Hydraulic grade line and energy grade line are the same in fluid problemsb)Energy grade line lies above the hydraulic grade line and is always parallelto it.c)Energy grade line lies above the hydraulic grade line and they are separatedfrom each other by a vertical distance equal to the velocity head.d)The hydraulic grade line slopes upwards meeting the energy grade at theexit of flow.Correct answer is option 'C'. Can you explain this answer?.
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