The inverted filter consists layer of materials of increasing ______________ from bottom to top?
Correct answer: A. Permeability
- A. Permeability
- B. Under mining
- C. Piping
- D. Up thrust pressure
Explanation
An inverted filter is arranged so that seepage encounters progressively more permeable material in the direction of flow. Thus permeability increases from the bottom layer toward the top.
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