Question 3: (5 marks) a) What is the hydraulic grade line? How does it differ from the energy grade line? Under what conditions do both lines coincide with the free surface of a liquid? (1.5 marks) b) Is the friction factor is independent of the Reynolds number at very large Reynolds numbers? Explain why? (1.5 marks) c) What is a Rotameter? Write the principle behind operating a rotameter. (2 marks)
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It represents the sum of the pressure head and the elevation head of the fluid. The energy grade line (EGL), on the other hand, represents the sum of the pressure head, elevation head, and velocity head of the fluid. The HGL and EGL differ in that the EGL Show more…
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