In a gear having involute teeth, the normal to the involute is a tangent to the

In a gear having involute teeth, the normal to the involute is a tangent to the Correct Answer base circle

Addendum circle is the circle drawn through the top of the teeth and is concentric with the pitch circle. Dedendum circle is the circle drawn through the bottom of the teeth. It is also called root circle. Pitch circle is an imaginary circle which by pure rolling action, would give the same motion as the actual gear.
Bissoy MCQ

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