Question

Undercutting is consider healthy for the tooth as it eliminates undercutting.

(a) True

(b) False

I am preparing this question from in an international level competition.

This question was presented in the Inerference, Undercutting & Backlash section in chapter Rolling Contact Bearings, Spur Gears and Helical Gears of Machine Design

Answer 1

The most accurate answer is (b) False

Let me simplify it: Although it eliminates undercutting but it also weakens the strength of the tooth and removes a small involute portion near to the base circle.