Analyze rock and mud to detect the presence of oil.
Coordinates activities of merchandise-servicing department of gas or electric appliance distributors: Supervises, trains, and assigns duties to workers engaged in servicing appliances, pricing, and disposition of returned merchandise and excess repair parts. Develops company policies and procedures regarding servicing of appliances and disposition of defective parts. Consults manufacturers to obtain advice on unusual service problems and to obtain service instructions and parts catalogs. May write instructions on care and use of appliances for distribution to public.