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The shape of the cam to transmit uniform linear motion is determined by the application of the principle of ___________________

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The shape of the cam to transmit uniform linear motion is determined by the application of the principle of ___________________

(a) Logarithmic spiral

(b) Archimedean spiral

(c) Equitorial spiral

(d) Fibonacci spiral

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My question is based upon Cam topic in division Curves used in Engineering Practice of Engineering Drawing

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Correct answer is (b) Archimedean spiral

The best explanation: Archimedean curve is traced out by a point moving in such a way that its movement towards or away from the pole is uniform such that the angle and distance follow the linear function from the starting line. This is used in teeth profiles of helical gears and cam profiles etc.

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