It is the primary field of engineering concerned with the development of aircraft and spacecraft.

It is a branch of engineering that deals with all aspects of the design, building, and use of engines, machines, and structures on the nanoscale.

It involves properties of matter (material) and its applications to engineering.

It comprises the design and analysis of heat and mechanical power for the operation of machines and mechanical systems.

It comprises the design, construction and maintenance of the physical and natural built environments.

It is an electrical engineering discipline which utilizes nonlinear and active electrical components to design electronic circuits, devices, VLSI devices and their systems.

It is the design and control of computing devices with the application of electrical systems.

It is the application of engineering principles and design concepts to medicine and biology for healthcare purposes.

It is concerned with the study and application of electricity, electronics and electromagnetism.

It is the application of chemical, physical and biological sciences to the process of converting raw materials or chemicals into more useful or valuable forms.