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Q:

Two involute gears in a mesh have a circular pitch of 25 mm. The arc of contact is 55 mm. Find the number of pairs of teeth in contact.

A) 2.2 B) 0.45
C) 13.75 D) 1.3
 
Answer & Explanation Answer: A) 2.2

Explanation: Contact ratio = Arc of contact/ Circular pitch = 55/25 = 2.2.

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Category: Mechanical Engineering MCQs
Sub Category: Theory of Machines Mcqs

64
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