Introduction To Industrial Maintenance Practice Test

One revolution per second is equal to how many RPM?

3600 RPM 60 RPM 0.5 RPM 120 RPM

Correct Answer:

60 RPM

Explanation:

Converting revolutions per second to revolutions per minute. There are 60 seconds in a minute, so multiply by 60. One revolution each second equals 60 revolutions per minute, or 60 RPM. If you were counting per hour, you’d multiply by 3600, but RPM is per minute. A value of 120 RPM would mean two revolutions per second (since 120 ÷ 60 = 2).

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