Diesel-mechanical refers to a type of engine system that combines a diesel engine with a mechanical transmission. This setup is commonly used in heavy machinery, such as trucks and construction equipment, where durability and efficiency are essential. The diesel engine provides high torque and fuel efficiency, while the mechanical transmission allows for direct power transfer to the wheels. In a diesel-mechanical system, the engine generates power that is transmitted through gears, enabling the vehicle to move. This design is favored for its simplicity and reliability, making it suitable for demanding applications. Overall, diesel-mechanical systems are known for their robust performance in various industrial settings.