question_answer

Consider the following processes for the manufacture of gears:

1. Casting

2. Powder metallurgy

3. Machining from bar stock

4. Closed die forging

The correct sequence in increasing order of bending strength of gear teeth is:                         

A) 1, 2, 3, 4                      

B) 1, 2, 4, 3           

C) 2, 1, 4, 3                      

D) 2, 1, 3, 4