What does 1000r/min indicate on the gauge?

[DelAyla]

1000r/min on the car dashboard refers to the engine tachometer. Here is an introduction related to engine speed: Relationship between speed and power: The engine speed determines the number of work cycles per unit time or the effective power output of the engine, meaning the effective power varies with different speeds. Therefore, when specifying the engine's effective power, the corresponding speed must also be indicated. Rated speed: The effective power specified on the engine's product label and its corresponding speed are referred to as the rated power and rated speed, respectively. The operating condition of the engine at the rated power and rated speed is called the rated condition. The rated power is not the maximum power the engine can produce; it is the maximum usable limit of effective power determined based on the engine's intended use.