Transportation Operations LINCS Practice Exam

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What does an Electronic Logging Device connect to?

The fuel tank of the truck
The truck's engine
The driver's mobile device
The GPS system of the vehicle

The correct answer is: The truck's engine

An Electronic Logging Device (ELD) is designed to connect directly to the truck's engine. This connection allows the ELD to automatically record driving time and vehicle data such as speed, location, and engine hours. By interfacing with the engine, the ELD can monitor the vehicle's operation in real-time and collect the necessary information for compliance with hours of service regulations. This ensures that drivers are adhering to legal constraints regarding their driving hours and helps to improve safety by preventing fatigue-related incidents. While a driver’s mobile device, GPS system, and fuel tank are important components of truck operations, they do not serve as the primary connection point for an ELD. The information derived from the engine's data is critical for accurate logging of duty status and enhancing the operational efficiency of the vehicle.