Analyze rock and mud to detect the presence of oil.
Supervises and coordinates activities of workers engaged in applying coats of plaster, stucco, cement, and fireproofing materials to surface of structures to produce protective or decorative finish: Analyzes blueprints to determine surface area to be covered and estimates worker-hours and materials requirements applying mathematical formulas. Demonstrates mixing, plastering, cementing and other techniques to workers. Inspects material application for uniform thickness, surface flaws, and consistency of mix. Inspects finished surface to verify quality of work and adherence to specifications. Performs other duties as described under SUPERVISOR Master Title.