Question

4.2.B-

If the alternator-to-engine drive ratio is 2.15 to 1, what rpm will the alternator have when the engine is idling at 500 rpm? Hint: Use a direct proportion.

The alternator will have rpm when the engine is idling at 500 rpm.

(Type a whole number or a decimal.)

Answer 1

If the engine is idling at 500 rpm, the Alternator rpm is 1075 rpm

How to solve ratio

Ratio of alternator-to-engine drive = 2.15 : 1

If engine is idling at 500 rpm, alternator rpm is x

2.15 : 1 = x : 500

2.15/1 = x/500

cross product

2.15 × 500 = 1 × x

1075 = x

Alternator rpm is 1075 rpm

Therefore, the alternator will have 1075 rpm when the engine is idling at 500 rpm.

Learn more about ratio:

https://brainly.com/question/1781657