engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Production Engineering (Manufacturing) Metal Forming Rolling
In rolling, the metal would enter the space between the rolls automatically if the angle of bite (α) is_____. (μ is coefficient of friction)
1
≤ tan-1μ
2
≥ tan-1μ
3
\(\ge \frac{1}{2}{\tan ^{ - 1}}\mu \)
4
\(\le \frac{1}{2}{\tan ^{ - 1}}\mu \)