2.4 - Continuity Equation
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Practice Questions
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What is the continuity equation in terms of flow rates?
💡 Hint: Think about the relation between cross-sectional area and fluid velocity.
Define a control volume.
💡 Hint: Consider it as an imaginary box through which fluid flows.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the continuity equation primarily express?
💡 Hint: Consider which law correlates with mass in fluids.
The mass flow rate must be constant in a flow system. True or False?
💡 Hint: Recall the principle of conservation.
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Challenge Problems
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A tank has a rectangular cross-section of 2m by 3m. Water flows out at a rate of 0.5 cubic meters per minute. If the water level is dropping, find the rate of drop in height.
💡 Hint: Convert your flow rate to match the units of height.
Two pipes are connected: the first with a diameter of 10 cm and the second with 15 cm. If the velocity in the first pipe is 3 m/s, find the velocity in the second pipe.
💡 Hint: Remember to find A using the diameter to calculate areas.
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