2747. For calculating the permissible stress 0 y /[(1 + a(l/r)²] is the empirical formula, known as__________________?

A. Straight line formula
B. Parabolic formula
C. Perry’s formula
D. Rankine’s formula
✅ The correct answer is option D.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top