Practice Hydraulic Gradient (9.2) - Effective stress under Hydrodynamic Conditions

Practice: Hydraulic gradient

Lesson 9.2Effective stress under Hydrodynamic Conditions

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8 questions

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6 sample questions

Question 1.
What is the hydraulic gradient?
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Think about how water pressure changes over distance.
Question 2.
Define effective stress.
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Try to remember the formula!
3Question 3.
What does the hydraulic gradient represent?
- Change in height
- Change in potential energy
- Change in hydraulic head over distance
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It's related to water's drive through soil.
4Question 4.
True or False: A rise in the water table always increases effective stress.
- True
- False
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Think about how total stress and pore pressure interact.
Question 5.
A soil column has a total stress of 50 kPa at a depth below a rising water table. If the pore water pressure is calculated at that depth to be 20 kPa, what is the effective stress?
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Use the effective stress equation to solve.
Question 6.
Consider an upward water flow scenario with a hydraulic gradient approaching 1. What implications would this have on the stability of a sand layer?
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Think about how it impacts weight support.

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