INTRODUCTION TO AUTOMOBILE

An automobile is a self-propelled vehicle which is used for transportation of passengers and goods upon the ground. A vehicle is a machine which is used for the transportation of passengers and goods. A self-propelled vehicle is that in which power required for propulsion is produced from within. Aeroplane, ship, motor boat, locomotive, car, bus, truck, jeep, tractor, scooter, motor cycle are the examples of self-propelled vehicles. Motor vehicle is another name for the self-propelled vehicle running on the ground. thus, automobile is a type of vehicle which is self-propelled and used for the transportation purposes upon the ground. Car, bus, truck, jeep, tractor, scooter, motor cycle are the examples of automobiles. Since, automobile is propelled upon the ground, so it differs from other types of self-propelled vehicles, like aeroplane, helicopter, rocket, ship, motor boat, locomotive. 

Mobile or motive means one which can move. Automobile or automotive means one which itself can move. A railway wagon cannot move itself on the rails if it is not pushed or pulled by external force. The railway wagon is pulled on the rails by locomotive. The trolley is pulled on the road by an automobile which may be a jeep or tractor. Automobile deals with self propelled vehicles like car, bus, jeep, truck, tractor. Aeronautic deals with aeroplane, helicopter, rocket, etc., which fly in air. Marine deals with ship, motor boat, etc., which sail in water.