Mechanical
Knowledge of machines and tools, including their designs, uses, repair, and maintenance.
Administration and Management
Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.
Chemistry
Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods.
Mathematics
Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
Education and Training
Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects.