Directions : Select your answer to following question using the codes given below :
Codes :
Assertion A : Wash boring is recommended to obtain an undisturbed soil sample above ground water table.
Reason R: In wash boring, water pumped through the hollow drill rods emerges through the ports of the ports of the chopping bit carrying disintegrated soil fragment.
1
Both A and R are true and R is the correct explanation of A
2
Both A and R are true and R is not correct explanation of A
3
A is true but R is false
4
A is false but R is true
5
Question Not Attempted