When the pitch angle is greater than 90⁰, it is called external bevel gear.

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Mr. Dubey • 52.74K Points
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Q. When the pitch angle is greater than 90⁰, it is called external bevel gear.

(A) true

(B) internal

(C) helical

(D) herringbone

Correct Answer - Option(B)
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Filed under category Design of Machine Elements

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Explanation by: Mr. Dubey

 for external bevel gear, pitch angle is less than 90⁰.

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