Mechanical Engineering is a popular branch of engineering that deals with the principles involved in the design, development, study and construction of mechanical devices that includes engines, machines, tools, etc. One of the oldest branches of engineering, it combines engineering physics and mathematics principles to design, maintain and manufacture mechanical systems. There has been tremendous growth in the field of Mechanical Engineering in recent years. Skilled mechanical engineers have a lot of opportunities in automobile, aerospace, chemical manufacturing plants, oil exploration, research and development and much more.