It is desired to avoid interference in a pair of spur gears having a 2 – McqOptions

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1.	It is desired to avoid interference in a pair of spur gears having a 20° pressure angle. With increase in pinion to gear speed ratio, the minimum number of teeth on the pinion
A.	increases
B.	decreases
C.	first increases and then decreases
D.	remains unchanged
Answer» C. first increases and then decreases

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