Analyze rock and mud to detect the presence of oil.
Supervises and coordinates activities of workers engaged in construction, installation, testing, maintenance, and repair of electric power equipment, such as powerplants, cables, wiring, and teleprinters in central offices and at outside facilities: Directs placing and removal of cross-connections on wire-distributing frames. Directs installation of traffic trunklines through switchboard and switchroom. Schedules periodic inspections and tests of equipment to prevent service interruptions. Keeps records of trouble reports and repairs made. Performs other duties as described under SUPERVISOR Master Title. May be designated according to area supervised as Central-Office Supervisor; City-Plant Supervisor; District-Plant Supervisor; Inside-Plant Supervisor; Outside-Plant Supervisor.