Question

Assertion (A): Quick sand is not a type of sand but it is a condition arising in a sand mass.
Reason (R): When the upward seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure becomes zero.

• A. both A and R are true and R is the correct explanation of A
• B. both A and R are true but R is not a correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

The correct option is A both A and R are true and R is the correct explanation of A

Quick sand condition corresponds to zero effective pressure due to upward seepage.