Knowledge of machines and tools, including their designs, uses, repair, and maintenance
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
Customer and Personal Service
Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.
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.
Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.