Multiple choice

Quicksand condition occurs when

  1. the void ratio of the soil becomes 1.0

  2. the upward seepage pressure in soil becomes zero

  3. the upward seepage pressure in soil becomes equal to the saturated unit weight of the soil

  4. the upward seepage pressure in soil becomes equal to the submerged unit weight of the soil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Quick sand condition occurs when the upward seepage pressure in soil becomes equal to submerged unit weight of the soil. So, effective stress is equal to zero.

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