What are the different types of locomotives and how do they work?

Locomotives are a type of railway engine that powers trains. There are several different types of locomotives, each with its own unique characteristics and purposes. Some of the most common types of locomotives include steam, diesel, electric, and hybrid locomotives.

Steam locomotives were the first type of locomotive invented and were used for many years. They work by burning coal, which heats water and creates steam. The steam then powers the engine's pistons, which drive the locomotive's wheels.

Diesel locomotives are powered by diesel engines. They are more efficient and produce less pollution than steam locomotives. They work by burning diesel fuel, which powers an electric generator that provides electricity to the locomotive's motors.

Electric locomotives are powered by electricity from overhead lines or a third rail. They are often used in urban areas because they produce no exhaust fumes. The electricity is transmitted to the locomotive's motors, which turn the wheels.

Hybrid locomotives use a combination of diesel and electric power. They are more fuel-efficient and produce fewer emissions than traditional diesel locomotives. They work by using batteries to store electricity generated by the locomotive's diesel engine.