... the following categories: air conditioning and refrigeration, electrical, mechanical, plumbing ... ., plunge toilets and unclog drains), electrical components including lamps, cosmetic items, extension cords ...

... , electrical, mechanical, plumbing, pneumatic/electronic systems and controls, carpentry and finish skills ... of equipment, plumbing (e.g., plunge toilets and unclog drains), electrical components including ...

... acquire knowledge in the following categories: air conditioning and refrigeration, electrical, mechanical ... , plumbing (e.g., plunge toilets and unclog drains), electrical components including lamps, cosmetic items ...