Question

Assertion (A): Larger footings settle more than the smaller footings under the same load intensity.
Reason (R): Size of the pressure bulb depends upon the size of the footing.

• 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


The region within the 0.20 q - isobar is called by Terzaghi the "seat of settlement". The depth below centre of footing in active zone (i.e., in "seat of settlement") is 1.5B. For a larger footing more area will be affected so the settlement will be more.