Topic: Manufacturing
The maximum value of reduction in rolling process is (Where 'D' is roll diameter and 'α' is the angle of bite)
- A. D(1-cosα)/2
- B. D(1-cosα)/2
- C. D(1-sinα)
- D. D(1-sinα)/2
Explanation: The correct formula for draft or reduction (Δh) is Δh = 2R(1-cosα) or D(1-cosα). The options seem to be variations of this, but the question was excluded from evaluation by ISRO, likely due to ambiguity or errors in the options.