Mechanical engineering requires a solid understanding of core concepts including mechanics, kinematics, thermodynamics, fluid mechanics, materials science, and energy. Mechanical engineers use the core principles as well as other knowledge in the field to design and analyse manufacturing plants, industrial equipment and machinery, heating and cooling systems, motor vehicles, aircraft, watercraft, robotics, medical devices and more. The field of mechanical engineering is considered among the broadest of engineering disciplines. The work of Mechanical Engineering ranges from the depths of the ocean to outer space.
Mechanical Engineers could work in many industries including private or public sector industries of various types. They can seek employment in governmental departments like posts and telegraphs, defence, PWD, and CPWD. Other departments such as aeronautical, agricultural, automobile, chemical, and power plants, as well as the railways, need mechanical engineers to design and maintain their machinery.