If an engine is turning at 1,965 RPM at 65 percent power, what is its maximum RPM?

To determine the maximum RPM of the engine, you need to understand the relationship between the current RPM at a given power setting and the maximum power setting. When the engine is operating at 65 percent power and is turning at 1,965 RPM, this RPM represents a portion of its total capacity.

To calculate the maximum RPM, you can set up a proportion based on the fact that 1,965 RPM is 65 percent of the maximum RPM. Using the formula:

[ \text{Current RPM} = \text{Maximum RPM} \times \frac{\text{Power Percentage}}{100} ]

Rearranging this gives:

[ \text{Maximum RPM} = \frac{\text{Current RPM}}{\text{Power Percentage}} \times 100 ]

Plugging in the values:

[ \text{Maximum RPM} = \frac{1965}{65} \times 100 ]

Calculating this yields a maximum RPM of approximately 3,023 RPM. This demonstrates that the chosen answer reflects the correct calculation based on the engine's current operational statistics, which indicates that at 100 percent power output, the engine can reach 3,023 RPM.