question_answer

Consider the following statements:          

Roll forces in rolling can be reduced by

1. Reducing friction

2. Using large diameter roller to increase the co

3. Taking smaller reductions per pass to reduce the contact area.

Which of the statements given above are correct?

A) 1 and 2 only     

B) 2 and 3 only  

C) 1 and 3 only       

D) 1, 2 and 3