# Length of the arc of the pitch circle between the centres or other corresponding points of adjacent teeth is known as

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Length of the arc of the pitch circle between the centres or other corresponding points of adjacent teeth is known as

(a) pitch

(b) circular pitch

(c) base circle

(d) none of the mentioned

I got this question in an interview for internship.

This intriguing question comes from Gearing topic in chapter Toothed Gearing & Gear Trains of Machine Kinematics

## 1 Answer

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by (102k points)
Right option is (b) circular pitch

Easy explanation: Length of the arc of the pitch circle between the centres or other corresponding points of adjacent teeth is known as circular pitch.

The circle from which an involute curve is generated is known as base circle.

Radial distance between the pitch circle and the top of the tooth is known as addendum.

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