Practice Conservation Of Mass (3.1.7) - Mass Conservation Equation- I - Fluid Mechanics - Vol 3

Practice: Conservation of Mass

Lesson 3.1.7Mass Conservation Equation- I

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9 questions

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6 sample questions

Question 1.
What is a control volume?
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Think about how we simplify complex systems.
Question 2.
Define mass conservation.
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It relates to what happens in a closed system.
3Question 3.
What is the primary principle of mass conservation in fluid mechanics?
- Mass can be created
- Mass remains constant
- Mass can be destroyed
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Think about what happens in a closed system.
4Question 4.
True or False: The integral approach in fluid mechanics ignores the interior conditions of control volumes.
- True
- False
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Consider what we know and don’t know about the 'black box'.
Question 5.
A control volume is established around a pipe segment with water flowing in and out. Calculate the mass flow rates if the inlet has a velocity of 3 m/s and an area of 2 m² with water density 1000 kg/m³.
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Use the mass flow rate formula: mass flow rate = density × area × velocity.
Question 6.
Visualize a situation with a fixed control volume and mass entering it at a different speed than mass exiting. How does this affect total mass over time?
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Think about the relationship between the incoming and outgoing mass flux.

5 more questions in this section. Enroll free to practise them all.