Which is the incorrect relationship of gears?
(a) Circular pitch × Diametral pitch = π
(b) Module = P.C.D/No.of teeth
(c) Dedendum = 1.157 module
(d) Addendum = 2.157 module
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Question is from Toothed Gearing in portion Toothed Gearing & Gear Trains of Machine Kinematics