25.4.3 - Coefficients of Discharge
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Practice Questions
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Define the hydraulic gradient line.
💡 Hint: Consider the relationship to the liquid's free surface.
What does a pump do in a fluid system?
💡 Hint: Think about the fluid motion and energy transfer.
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Interactive Quizzes
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What does the hydraulic gradient line represent in open channel flow?
💡 Hint: Think about where the water surface aligns.
True or False: A pump decreases mechanical energy of the fluid.
💡 Hint: Consider the role of pumps in energy transitions.
1 more question available
Challenge Problems
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A closed tank with a diameter of 3 m has a pipe outlet of diameter 0.2 m. If the water level is 5 m high, calculate the discharge through the pipe using the coefficient of discharge of 0.8.
💡 Hint: Calculate the area for the smaller pipe first and then apply the correct formula.
In a water supply system, the efficiency of a pump is seen to decline from 85% to 75% as flow rates increase. How does this affect the overall system pressure?
💡 Hint: Think about how energy loss correlates to system performance - higher losses mean lower pressure delivery.
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