Aeronautical deals with the whole field design,manufacture,maintenance,testing and use of aircraft for both civilian and
military purposes.It involves the knowledge of aerodynamics,structural design,propulsion engines,navigation,communication and other related areas.aerospace engg is closely allied to aeronautics but is concerned with the flight of vehicles in space,beyond the earth's atmosphere and includes the study and development of rocket engines,artificial satellites and vehicles for space exploration.Chemical engg : Production of gases chemical engineers deals with the Design,construction and management of factories in which chemical reactions are part of the central process.This branch of engg is concerned with the design,construction and management of factories in which the essential processes consist of chemical reactions.Because of the diversity of the materials dealt with,the practice for more than 50 years has been to analyze chemical engg problems in terms of fundamental unit operations or units.Among the important sub divisions of the field are construction engg,
irrigation engg,transport engg,soils and foundation engg,geodetic engg,hydraulic engg and coastal and ocean engg.
http://www.shvoong.com/exact-sciences/engine ering/1722377-geological-mining-
engineering/
http://www.shvoong.com/exact-sciences/engineering/1722379-marine-engineering/
http://www.shvoong.com/exact-sciences/engineering/1722380-nuclear-engineering/
http://www.shvoong.com/exact-sciences/engine ering/1722384-sanitary-industrial-engineering/