Practice Extensional And Shear Strain Rates (1.8)

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is vorticity?
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Think of it as related to how much a small element of fluid spins.
Question 2.
Define shear strain.
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Consider it as how the angle between lines changes when they are subject to forces.
3Question 3.
What does vorticity measure in a fluid?
- Rate of change in pressure
- Rate of rotation
- Velocity of fluid
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Think of it as how fast a corkscrew turns in a fluid.
4Question 4.
True or False: Shear strain relates to the change in angles between two surfaces.
- True
- False
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Recall how shear stress affects the shape without changing volume.
Question 5.
Given a fluid with a vorticity of 5 s⁻¹, calculate the rate of rotation per unit time.
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Remember the relation between vorticity and rate of rotation.
Question 6.
A cylinder rotates and experiences shear strain. Using provided values, derive the tensor components.
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Review tensor mechanics and how they relate to shear and extensional rates.

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