Analyze rock and mud to detect the presence of oil.
Supervises and coordinates activities of workers engaged in testing and repairing watt-hour meters, watt-hour demand meters, graphic demand meters, and instrument transformers in meter repair shop of electric power companies: Directs workers engaged in storing and issuing meters and meter repair parts and in making periodic stock inventories. May test electrical metering mechanisms used as standards for accuracy, using meters and instruments mounted on test board. May test rubber protective goods for dielectric strength [RUBBER-GOODS TESTER]. May supervise and coordinate activities of workers engaged in testing and repairing electrical indicating instruments, such as ammeters, voltmeters, frequency meters, phase angle meters, phase rotation indicators, gas detectors, metal detectors, and analysers. May supervise and coordinate activities of workers engaged in testing and repairing clock movements in demand meters and other electric-power-system timing equipment. Performs other duties as described under SUPERVISOR Master Title.