Practice Applications Of Fluid Mechanics (15.2.3)

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9 questions

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6 sample questions

Question 1.
Define a control volume.
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Think about areas around structures or paths where fluids move.
Question 2.
What does the conservation of mass principle state?
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Consider how materials in a closed jar behave.
3Question 3.
What does the conservation of mass state?
- Mass can be created
- Mass can be destroyed
- Mass is conserved
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Think about how mass behaves in a closed environment.
4Question 4.
Is the Reynolds Transport Theorem applicable to both fixed and moving control volumes?
- True
- False
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Consider how different volumes can be analyzed.
Question 5.
Calculate the mass flow rate of water flowing through a pipe of diameter 0.1m at a velocity of 3 m/s. Assume the density of water is 1000 kg/m³.
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Firstly, work out the area of the pipe cross-section.
Question 6.
If a ship is moving through water at 5 m/s while the water is also flowing past it at 2 m/s, find the relative velocity of the water with respect to the ship.
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Remember to consider which direction is positive in your calculations.

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