Question

27. Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Direct shear test is not of much use for fine grained soils where drainage conditions play an important role influencing the shear strength.
Reason (R) : In direct shear test drainage conditions can not be controlled and pore water pressure can not be measured.
In light of the above statements, choose the correct answer from the options given below.

• 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 the correct explanation of (A).
• C. (A) is true but (R) is false.
• D. (A) is false but (R) is true.

Hint:

For cohesive fine-grained soils, the Triaxial Shear Test is preferred over the Direct Shear Test because it allows full control over drainage and precise measurement of pore water pressure.

Answer 1

The Correct Option is A