This question was previously asked in

BPSC Asstt. Prof. ME Held on Nov 2015 (Advt. 22/2014)

Option 3 : the number of teeth

ST 2: Strength of materials

2026

15 Questions
15 Marks
15 Mins

**Explanation:**

Lewis form factor for 20° full depth involute system is given by:

\(Y=0.154-\frac{0.912}{T}\)

where T = number of teeth.

Hence the Lewis form factor (y) is only depends upon the number of teeth.