Mechanical Engineers apply the principles of Material, Mechanics and Energy to the design of Machines and Devices. They must be able to control those mechanical systems. And work with other professionals in designing these systems. Automobiles, Engines, Heating and Air-conditioning system, Gas and Steam Turbines, Air and Space Vehicles, Trains, Ships, Servomechanisms, Transmission Mechanisms, Machine tools, Material handling systems, Elevators and Escalators, and Robots used in industry are a few of the systems and devices requiring Mechanical Engineering knowledge.
