How can the engine speed be checked according to standard procedure?

To accurately check engine speed, using a tachometer or a handheld tachometer is the most reliable method. A tachometer is a specialized instrument designed to measure the rotational speed of the engine in revolutions per minute (RPM). This precise measurement allows for better monitoring of engine performance and operational efficiency.

Tachometers provide direct and real-time feedback, making it easier to ensure that the engine operates within optimal speed ranges, which is crucial for many mechanical and operational purposes. Handheld tachometers can also be utilized in various scenarios, especially for maintenance or troubleshooting, providing versatility in checking engine speed without being dependent on any onboard systems.

While other methods, such as the speedometer or engine sounds, may provide some insights, they do not offer the same level of accuracy or direct measurement necessary for effectively monitoring engine performance. The built-in computer system can provide information related to engine speed, but it may not be as direct or clear as the readings from a dedicated tachometer.