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A 20-tooth pinion meshes with a 63-tooth gear. The gear ratio is
1. 83.5
2. 43.5
3. 0.6
4. 3.15

1 Answer

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Correct Answer - Option 4 : 3.15

Concept:

Gear ratio is given by

G = T/t

where G = Gear ratio, T = No of tooth of gear wheel, t = No of tooth of pinion gear

Calculation:

Given:

T = 63, t = 20

G = 63/20

G = 3.15

Hence the gear ratio will be 3.15

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