Practice Rate Of Change Of Mass (4.2.1) - Continuity Equations - Fluid Mechanics

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8 questions

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6 sample questions

Question 1.
What does the principle of mass conservation state?
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Think about how matter behaves in physics.
Question 2.
Define the continuity equation.
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Consider how fluids flow in and out of a control volume.
3Question 3.
What does the mass conservation principle state?
- Mass can be created
- Mass can be destroyed
- Mass cannot be created or destroyed
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Consider basic laws of science about matter.
4Question 4.
The continuity equation in fluid dynamics is expressed as?
- True
- False
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Think about the relationship between mass and fluid flow.
Question 5.
Given a scenario where fluid enters a control volume at a specific rate but three outlets are present. Calculate the net mass flow rate and determine the divergence.
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Start with the formula for mass flow rates at the inlets and outlets.
Question 6.
A pipe system reduces in diameter. Explain how the continuity equation applies, and calculate the expected change in velocity if density remains constant.
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Use the equation A1V1 = A2V2 to relate areas and velocities.

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