What happens to engine torque as the RPM increases?

As the RPM (revolutions per minute) of the engine increases, engine torque typically increases up to a certain point. This is because the engine generates more power as the RPM rises, leading to higher torque output. Torque is a measure of rotational force, and as the engine speed increases, the efficiency of the combustion process often improves until it reaches the engine's peak torque range.

In most vehicles, moving from idle to mid-range RPMs, the engine is capable of delivering greater torque due to better air-fuel mixing and combustion efficiency. However, it's important to note that there is a peak torque point beyond which further increases in RPM may lead to a decrease in torque as the engine starts to operate outside of its optimal efficiency range.

So, the general trend of engine torque rising with RPM contributes to the correct answer. Understanding this relationship is crucial for optimizing performance, especially when shifting gears in a manual transmission. Properly managing RPM in relation to torque allows drivers to maintain efficient acceleration and engine health.