Question

Assertion (A): The drained tests using triaxial test apparatus are useful in the study of drainage of water through the soil sample and hence the permeability of the soil sample.
Reason (R): The permeability of soil is an important property useful in estimation of loss of imponded water through permeable soil layers below the earth dams.

• 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 B both A and R are true but R is not a correct explanation of A

Triaxial test is used to measure the permeability of low permeable soils. Test involves the establishment of a steady-state flow condition in a cylindrical condition housed in triaxial permeability cell.