+1 vote
in Machine Dynamics by (34.3k points)
If the pinion has 20 teeth and the gear has 32 teeth, then what is the gear ratio?

(a) 5/8

(b) 8/5

(c) 25/64

(d) 64/25

I got this question by my school teacher while I was bunking the class.

Asked question is from Free Torsional Vibrations of a Geared System in portion Torsional Vibrations of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
Correct choice is (a) 5/8

The best I can explain: Gear ratio is defined as the ratio of no. of teeth on the pinion to the no. of teeth on the gear, there in this question the gear ratio is 5/8.

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