Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > For a diffuser, the vertical intercept betwee...
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For a diffuser, the vertical intercept between EGL and HGL
- a)increases
- b)decreases
- c)remains constant
- d)may increase or decrease
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
For a diffuser, the vertical intercept between EGL and HGLa)increasesb...
Explanation: The vertical intercept between EGL and HGL is equal to the kinetic head. For a diffuser, the cross-sectional area increases in the direction of flow leading to a decrease in the velocity of flow across the pipe. Since the kinetic head decreases, the vertical intercept between EGL and HGL will decrease.
Most Upvoted Answer
For a diffuser, the vertical intercept between EGL and HGLa)increasesb...
Explanation:
- EGL (Energy Grade Line) is defined as a line representing the total energy of a fluid, including its pressure head, velocity head, and elevation head.
- HGL (Hydraulic Grade Line) is defined as a line representing the pressure head of a fluid flowing in a pipe with reference to a chosen datum.
- The diffuser is a device used to gradually increase the velocity of a fluid while decreasing its pressure.
- When the fluid passes through a diffuser, the velocity of the fluid increases, and the pressure of the fluid decreases.
- The EGL and HGL are two important lines used to represent the energy and pressure of a fluid flowing in a pipe.
- The vertical intercept between EGL and HGL is the difference between the elevations of the two lines at a particular point in the pipe.
- The vertical intercept between EGL and HGL decreases in a diffuser because the pressure of the fluid decreases while the elevation of the fluid increases.
- Therefore, option B (decreases) is the correct answer.
Conclusion:
- The vertical intercept between EGL and HGL decreases in a diffuser.
- This is because the pressure of the fluid decreases while the elevation of the fluid increases.
- EGL (Energy Grade Line) is defined as a line representing the total energy of a fluid, including its pressure head, velocity head, and elevation head.
- HGL (Hydraulic Grade Line) is defined as a line representing the pressure head of a fluid flowing in a pipe with reference to a chosen datum.
- The diffuser is a device used to gradually increase the velocity of a fluid while decreasing its pressure.
- When the fluid passes through a diffuser, the velocity of the fluid increases, and the pressure of the fluid decreases.
- The EGL and HGL are two important lines used to represent the energy and pressure of a fluid flowing in a pipe.
- The vertical intercept between EGL and HGL is the difference between the elevations of the two lines at a particular point in the pipe.
- The vertical intercept between EGL and HGL decreases in a diffuser because the pressure of the fluid decreases while the elevation of the fluid increases.
- Therefore, option B (decreases) is the correct answer.
Conclusion:
- The vertical intercept between EGL and HGL decreases in a diffuser.
- This is because the pressure of the fluid decreases while the elevation of the fluid increases.
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For a diffuser, the vertical intercept between EGL and HGLa)increasesb)decreasesc)remains constantd)may increase or decreaseCorrect answer is option 'B'. Can you explain this answer?
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