Just like there are different types of music, there are different types of engineering fields. Traditionally they could be grouped into 4 primary types, Chemical Engineering, Civil Engineering, Electrical Engineering and Mechanical Engineering. There are many other engineering sub disciplines that branch off or merge from there. Here are descriptions of the 4 primary engineering fields.
Chemical Engineering: Chemical engineers develop processes to make raw materials or chemicals into usable products. They apply the principles of chemistry, physics, math and biology to solve problems with the design or production of these products. Chemical engineers design processes and equipment for product manufacturing. They also direct facility operations and test and plan production methods.
Civil Engineering: Civil Engineering is one of the oldest types of engineering. Civil engineers work on the design, construction, analysis and maintenance of man-made and natural structures. These include buildings, roads, bridges, dams, seaports, airports, drinking water and energy systems and infrastructure for a cleaner environment. They determine the feasibility of projects including costs and safety, and are responsible for the design and implementation. Civil engineers use physics and the advanced principles of mathematics such as calculus and trigonometry in their work.
Electrical Engineering: Electrical engineers design, develop, test and supervise the manufacturing of electrical equipment. They work will all kinds of electronics from small pocket devices to supercomputers, telecommunications and power systems and controls. They apply the physics and math of electricity, electronics and electromagnetism to large and small scale systems to process information and transmit energy.
Mechanical Engineering: Mechanical Engineering is one of the broadest of the engineering disciplines. Mechanical engineers design products and the machines that produce these products. They also design and construct machines, from power producing machines such as generators, turbines and engines to machines in buildings like elevators, escalators and air conditioning systems. They also maintain mechanical systems. Mechanical engineers apply physics and math to design, analyze maintain and manufacture mechanical systems.