Question

The volume of a cylinder equals 70 cubic inches when the piston is at bottom center. When the piston is at the top of the cylinder, the volume equals 10 cubic inches. What is the compression ratio?

Answer 1

compression ratio is 7 : 1

Step-by-step explanation:

given data

volume v1 = 70 cubic inches

volume v2 = 10 cubic inches

to find out

compression ratio

solution

we know that here compression ratio formula that is

compression ratio =
`(maximum volume of cylinder)/(minimum volume of cylinder)` ...................1

put here value maximum = 70 and minimum is 10

so

compression ratio =
`(70)/(10)`

compression ratio =
`(7)/(1)`

so compression ratio is 7 : 1