1. Tends steam oven that heats liquid plastics in glass molds to form sheets: Examines and removes defective molds from handtrucks. 2. Loads trucks holding molds into ovens and records time molds entered ovens. 3. Turns steam and cold-air valves to maintain specified pressure and temperature in oven. 4. Inserts …
1. Feeds machine that seals sterilized dressings into plastic bags and packs bags in cardboard cartons: Inserts sterilized dressing into plastic bag and folds open end to prepare for sealing. 2. Feeds folded end into machine that seals bag. 3. Presses and examines bag for airtight seal. 4. Packs specified …
1. Performs any combination of following tasks to prepare polysilicon for crystal growing process: Operates drilling machine to remove core sample from polysilicon rod for evaluation. 2. Breaks polysilicon rod into chunks, using hammer. 3. Removes tungsten filament from chunks, using circular saw or drill. 4. Immerses polysilicon chunks into …
1. Measures electrical activity of patient’s brain waves and other physiological variables, using polysomnograph, to aid physician in diagnosis and treatment of sleep disorders: Applies surface electrodes to patient’s head, using adhesive paste or tape, to obtain electroencephalogram measurement and applies other combinations of sensors and electrodes to patient to …
1. Operates preexpander and continuous molding machine that expands and molds polystyrene beads under heat and pressure, forming bead board: Reads work order to determine resin type and density requirements for bead board production. 2. Shoves intake tube in resin and presses tube into coupling of venturi feed system. 3. …
1. Tends automatic molding machines that mold preexpanded polystyrene beads under heat and pressure into cast foam products: Observes platens and listens to steam exhaust to determine end of molding cycle. 2. Lifts cast foam products, such as balls, coolers, displays, and packing nests, from mold cavities while platens are …
1. Fabricates pompoms for knitted headwear: Gathers spools of yarn according to type and color specified on work order. 2. Positions and secures winding wheel on workbench. 3. Threads yarn through tension devices and guides of winding wheel. 4. Manually rotates wheel to form skein of yarn. 5. Ties string …
1. Tends equipment that pumps brine through series of concentrating and crystallizing ponds to produce salt by solar evaporation: Turns valves to open floodgates and fill primary concentration ponds. 2. Starts pumps that fill concentrating ponds in specified sequence to facilitate crystallizing process and to empty primary concentrating pond. 3. …
1. Plans and conducts engineering studies to analyze and evaluate pollution problems, methods of pollution control, and methods of testing pollution sources to determine physiochemical nature and concentration of contaminants: Reviews data collected by POLLUTION-CONTROL TECHNICIAN from pollution emission sources. 2. Performs engineering calculations to determine pollution emissions from various …
1. Conducts tests and field investigations to obtain data for use by environmental, engineering, and scientific personnel in determining sources and methods of controlling pollutants in air, water, and soil, utilizing knowledge of agriculture, chemistry, meteorology, and engineering principles and applied technologies: Conducts chemical and physical laboratory and field tests …
1. Tends abrading machines that polish or lap surface of semiconductor wafers: Reads work order to determine specifications. 2. Loads wafers or carriers containing wafers onto polishing or lapping machine. 3. Adjusts machine controls or loads programmed control media in machine to regulate pressure, time, and slurry flow. 4. Starts …
1. Sets up and operates belt sanding machine to polish flat metal surfaces, such as small arms parts and metal strips: Pushes button to lower drive wheel and installs abrasive belt of specified grit, using wrenches. 2. Places metal part on conveyor belt and turns knobs to raise conveyor and …
1. Feeds metal parts into automatic polishing machine, and transfers polished parts from conveyor to trays. 2. Adds coolant to reservoir of polishing machine, and removes abrasive sludge from collection tank. 3. Assists POLISHING-MACHINE OPERATOR in changing abrasive belts.
1. Applies pitch and mounts cloth pads on surface of metal laps I used for polishing lens surfaces: Heats metal laps over gas flame. 2. Rubs bar of pitch or pours molten pitch on heated lap surface and positions cloth pad on lap. 3. Places cup-shaped holder of same curve …
1. Replaces worn abrasive surface on leather or felt polishing wheels, canvas belts, and metal or fiber disks, and balances wheels: Immerses wheel or disk in solution to soften glue. 2. Mounts wheel on electrically driven, pedestal-mounted spindle, using wrench, and holds pumice stone against rotating wheel to remove compacted …
1. Studies phenomena of political behavior, such as origin, development, operation, and interrelationships of political institutions, to formulate and develop political theory: Conducts research into political philosophy and theories of political systems, utilizing information available on political phenomena, such as governmental institutions, public laws and administration, political party systems, and …
1. Polishes plastic eyeglass frames and temple pieces to remove scratches and pit marks, using polishing wheel: Applies abrasive compound to wheel surface, using brush. 2. Starts machine and holds and turns frame parts against wheel to polish parts and remove defects. 3. Inspects and feels polished parts to verify …
1. Polishes plastic implants used to fill eye socket of person with artificial eye, using polishing cloths and chamois: Cuts emery cloth and chamois cloth into strips, using scissors. 2. Clamps plastic implant in vise, and pulls emery cloth strip back and forth through implant opening to remove rough edges …
1. Polishes sterling or silver-plated hollowware, such as bowls, dishes, trays, and flatware, by applying compound of powdered pumice and oil to workpiece while turning it against felt, leather, or brush polishing wheel: Mixes pumice and oil according to established proportions for type of workpiece being polished. 2. Holds workpiece …
1. Operates lathe and rag wheel polisher to smooth and polish edges of watch plates and bridges: Selects basswood lap I of specified size to polish recessed or curved surfaces and mounts lap in lathe. 2. Holds bar of abrasive against rotating surface to charge lap. 3. Manipulates bridge or …
1. Polishes and buffs steel and stainless steel articles, such as ice cream freezer lids, soda fountain dispensers, storage tanks, and display cases, using portable polisher, buffing brush, and emery cloth: Secures workpiece to bench or table and guides abrasive polishing wheel over workpiece to remove scratches and other defects …
1. Tends semiautomatic turning lathe that bevels and polishes balance wheel screwheads: Places screw, using tweezers, into threaded chuck and depresses pedal to turn screw firmly into chuck. 2. Turns, bevels, and polishes screwhead by manually feeding diamond tool against rotating head until automatic stop is reached. 3. Depresses pedal …
1. Polishes watch dial blanks, using abrasive belt or wheel: Holds blanks against rotating belt or wheel to buff dials, using jeweler’s rouge. 2. May rub dial over hone to impart distinctive mat finish to dial and be designated Watch-Dial Stoner. 3. May polish raised numerals on watch dials and …
1. Analyzes and answers requests by mail, telephone, or in person from policyholders, beneficiaries, or others for information concerning insurance policies: Searches company records to obtain information requested by customer. 2. Estimates loan or cash value of policy for policyholders, using rate books and calculating machine. 3. Interprets policy provisions …
