Question

The minimum number of piles to be used if the piles are installed by the method of driving is _____.

• A. \(3\)
• B. \(1\)
• C. \(2\)
• D. \(4\)

Hint:

As per IS 2911, \[ \boxed{ \text{Minimum initial test piles for driven piles}=3 } \] This ensures proper evaluation of pile capacity before construction.

Answer 1

The Correct Option is A

Concept: Pile load tests are conducted to verify the load carrying capacity of piles. As per IS 2911 (Part 4), for driven piles, the minimum number of initial test piles should be three to ensure reliable assessment of pile performance under field conditions.

Step 1: Recall the IS recommendation. For piles installed by driving, \[ \boxed{\text{Minimum number of test piles}=3} \]

Step 2: Select the correct option. Hence, \[ \boxed{3} \] Therefore, the correct option is \[ \boxed{(A)\;3.} \]