The interference may only be avoided if the addendum circles of the two mating gears cut the common tangent to the base circles between the points of tangency.
(a) True
(b) False
The question was posed to me during an online exam.
Asked question is from Minimum Number of Teeth on a Pinion for Involute Rack in Order to Avoid Interference in chapter Toothed Gearing & Gear Trains of Machine Kinematics