Question

In case of governing equations for calculating wheel load stresses using Westergaard's approach, the following statements are made :

1. Load stresses are inversely proportional to wheel load.

2. Modulus of subgrade reaction is useful for load stress calculation

Of these statements, which one is correct?

• A. 1 is false and 2 is true
• B. Both statements are true
• C. Both statements are false
• D. 1 is true and 2 is false

Answer 1

The correct option is A 1 is false and 2 is true

1. Load stresses are directly proportional to wheel load.

2. In load stress calculation, radius of relative stiffness is used which depends upon modulus of subgrade reaction.

Hence, statement 1 is false and 2 is true