Transportation
Knowledge of principles and methods for moving people or goods by air, rail, sea, or road, including the relative costs and benefits.
Engineering and Technology
Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.
Design
Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.
Building and Construction
Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.
Operation and Control
Using equipment or systems.
Mathematics
Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
Public Safety and Security
Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.
Operations Monitoring
Watching gauges, dials, or display screens to make sure a machine is working.
Mechanical
Knowledge of machines and tools, including their designs, uses, repair, and maintenance.