Tina works outdoors nearly all the time. She and her team clean up roads and fix holes in them. Her job is best described as

Alma works in an office building, where she operates engines and makes sure all the systems for heat, power, and other utilities are working properly. Her job is best described as
.

Every day, Sean drives to the homes of a few different customers, where he fixes washing machines and dryers. His job is best described as
.