Repairing machines or systems using the needed tools.

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

Performing routine maintenance on equipment and determining when and what kind of maintenance is needed.

The ability to tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing that there is a problem.

The ability to apply general rules to specific problems to produce answers that make sense.

The ability to listen to and understand information and ideas presented through spoken words and sentences.

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

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 materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.