Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.
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.
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.