Repairing machines or systems using the needed tools.

Determining causes of operating errors and deciding what to do about it.

Conducting tests and inspections of products, services, or processes to evaluate quality or performance.

The ability to detect or tell the differences between sounds that vary in pitch and loudness.

The ability to keep your hand and arm steady while moving your arm or while holding your arm and hand in one position.

The ability to make precisely coordinated movements of the fingers of one or both hands to grasp, manipulate, or assemble very small objects.

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.

Knowledge of the theory and techniques required to compose, produce, and perform works of music, dance, visual arts, drama, and sculpture.

Knowledge of machines and tools, including their designs, uses, repair, and maintenance.