ENGINE----A TO Z

An engine or motor is a machine designed to convert energy into useful mechanical motion. Heat engines, including internal combustion engines and external combustion engines (such as steam engines) burn a fuel to create heat which is then used to create motion. Electric motors convert electrical energy in mechanical motion, pneumatic motors use compressed air and others, such as wind-up toys use elastic energy. In biological systems molecular motors like myosins in muscles use chemical energy to create motion.
 

There are two types of engine in vehicle.

1--> Petrol Engine

2--> Diesel Engine