How many kilometers can a car travel in one hour at 120 km/h?
1 Answers
Maintaining a constant speed of 120 km/h, the car will travel 120 kilometers in one hour. The engine speed for most vehicles ranges between 2,200 to 3,000 RPM. Healthy RPM range: Under normal circumstances, a car's engine needs to operate above 2,000 RPM to demonstrate its advantages. The RPM range between 2,000 and 4,000 is referred to as the healthy RPM range. Effects of low RPM: When the RPM is too low, fuel cannot fully combust in the cylinders, leading to carbon buildup in the engine. Prolonged operation at low RPM can affect the engine's performance. Effects of high RPM: If the RPM exceeds the normal range, it can easily cause oil burning and damage the transmission, also indicating poor engine performance.