1. Prepares floor for use as ice-skating rink and removes ice after use: Sprays floor of rink, using water hose, to obtain ice layer of specified thickness. 2. Skates behind tractor to guide scraper blades that smooth surface of rink. 3. Turns valves to force steam through piping in floor …
1. Mixes, cooks, and freezes ingredients to make frozen desserts, such as sherbets, ice cream, and custards: Measures and cooks ingredients for frozen desserts, according to recipes. 2. Pours mixed ingredients into freezing machine reservoir, and starts machine to churn and freeze ingredients. 3. Removes frozen dessert mixture from machine. …
1. Tests boilers, tanks, fittings, pipes, and similar objects to detect and locate leaks, using compressed air or water pressure: Installs fittings on object to seal outlets and connects object to high-pressure air or water line, using handtools. 2. Activates air compressor or water pump until gauge registers specified internal …
1. Operates truck-mounted hydro-sprayer to cover areas, such as highway median strip, hillsides and fields with mixture of grass seed, fertilizer and mulch according to specifications: Pumps water and dumps seed, fertilizer, and wood fiber into hydro-sprayer tank according to formula. 2. Connects hoses and nozzles, selected according to terrain …
1. Induces hypnotic state in client to increase motivation or alter behavior patterns: Consults with client to determine nature of problem. 2. Prepares client to enter hypnotic state by explaining how hypnosis works and what client will experience. 3. Tests subject to determine degree of physical and emotional suggestibility. 4. …
1. Assists FREEZER OPERATOR to freeze and package ice cream, performing any combination of following tasks: Pours cans of fruit into sieve to separate juice. 2. Places cans of chocolate coating into hot water vat, pushes barrel into mechanical heating unit, or adds specified amount of water to chocolate to …
1. Controls equipment to process base oils used in manufacture of margarine and shortening: Starts pumps to move premeasured batches of refined oils or fats into converter vessel. 2. Turns valves to adjust rate of flow of hydrogen, steam, air, and water into converter, and weighs and adds specified amounts …
1. Analyzes hydrographic data to determine trends in movement and utilization of water: Reads meters and gauges to measure waterflow and pressure in streams, conduits, and pipelines, and records data. 2. Measures water level in lakes, reservoirs, and tanks. 3. Calculates seepage and evaporation rates for dams and reservoirs. 4. …
1. Studies distribution, disposition, and development of waters of land areas, including form and intensity of precipitation, and modes of return to ocean and atmosphere: Maps and charts water flow and disposition of sediment. 2. Measures changes in water volume due to evaporation and melting of snow. 3. Studies storm …
1. Calibrates hydrometer tubes, using chemical solutions, marking device, and graduating machine: Mixes solutions of high, medium, and low specific gravity according to formula. 2. Tests solutions, using standard hydrometer, and adjusts specific gravity of solutions. 3. Places specified ballast weight into hydrometer float and seals hydrometer, using sealing compound. …
1. Assists HYDROELECTRIC-MACHINERY MECHANIC in repairing and maintaining mechanical equipment in hydroelectric generating station, performing duties as described under HELPER Master Title.
1. Performs grounds-keeping and plant maintenance tasks in hydroelectric generating station: Turns handwheel to open alternate water intake and to close clogged intake preparatory to cleaning water intake screens. 2. Removes accumulated logs, weeds, fish, silt, and driftwood from screen or rack, using crab-hoist, rake, shovel, and water hose. 3. …
1. Controls electrical generating units and related mechanical and hydraulic equipment at hydroelectric-generating station: Operates switchboard and manually operated controls to control water wheels, generators, and auxiliary hydroelectric-generating station equipment and distribute power output among generating units, according to power demands. 2. Records control-board meter and gauge readings, inspects operating …
1. Supervises and coordinates activities of workers engaged in operating and controlling hydroelectric generating equipment: Analyzes defective operation and directs HYDROELECTRIC-STATION OPERATORS to adjust equipment to minimize interruptions of power demands. 2. Inspects equipment and initiates maintenance repair orders. 3. Notifies WATERSHED TENDER when subnormal speed of generating units requires …
1. Installs and repairs hydraulic rubbish compactors, using tools and equipment: Installs new compactors, utilizing knowledge of electrical wiring and hydraulic-pneumatic functions and using handtools and power tools. 2. Diagnoses hydraulic and mechanical malfunctions of compactors to determine required repairs. 3. Adjusts, replaces, or repairs faulty hydraulic units, such as …
1. Operates hydraulic filter machine to remove foreign matter from plastics material: Cuts plastics dough into slabs, using knife, or rolls material into lump and packs it into cylinder. 2. Selects and installs wire and cloth strainers and die heads in machine, according to type and form of material, using …
1. Repairs and maintains in operating condition mechanical elements of generators, waterwheels, water-inlet and floodgate controls, valves, and piping in hydroelectric generating station. 2. Sets up and operates machine tools to repair or reproduce machine parts and fittings, working from blueprints or defective part.
1. Supervises and coordinates activities of workers engaged in setting up and operating hydraulic-pressure-auto-frettage machines to cold-work interior of artillery barrels. 2. Performs duties as described under SUPERVISOR Master Title.
1. Tends hydraulic press that packs tobacco into hogsheads for storage or shipment: Reads scales to determine whether specified amount of tobacco has been packed in hogshead and charger. 2. Pulls hogshead and charger from chute or packing line, using metal hook, and positions hogshead under ram of press. 3. …
1. Repairs, services, and adjusts hydraulic presses used to extrude wire for swaging into bullet slugs: Operates press to determine cause of defective operation and replaces parts, using handtools, such as wrenches, pliers, and screwdrivers. 2. Removes dies and sets up and adjusts new dies. 3. Fabricates replacement parts from …
1. Operates hydraulic-pressure-auto-frettage machine to improve physical characteristics and to detect physical weakness of machined artillery barrels, following specifications: Plugs muzzle end of barrel, sets barrel in vertical container of frettage machine, and tightens clamps to lock barrel in place. 2. Connects water pressure pipes to machine, starts water pumps, …
1. Operates hydraulic boom to lift copper anodes from casting mold and place anodes in cooling tank: Moves levers to position hydraulic boom and cable line over cast anode, lift copper anode from mold, and place anode into slot of rack in cooling tank. 2. Lifts filled rack from tank …
1. Assembles hydraulic chairs, such as professional, laboratory, and hospital chairs from prefabricated and finished parts: Assembles hydraulic-lifting and chair-revolving mechanisms and mounts them on base. 2. Assembles chair frame to base and attaches seat, arm, and headrests. 3. Inspects and adjusts completed unit. 4. Rethreads screws, retaps holes, and …
1. Sets up hydraulic jacks used to raise precast concrete floors and roof slabs: Guides threaded lift rods, raised by STRUCTURAL-STEEL WORKERS, through holes in jack frames. 2. Slips lift nut over end of rod and inserts hinged nut to fasten lift rod onto jack. 3. Mounts hydraulic motor to …
1. Tends hydraulic corrugating machine that corrugates metal tubes used in making bellows: Moves controls of machine to expand corrugating plates and position spacers between plates. 2. Places tube in opening of plates. 3. Pulls levers to close cradle, remove spacers, and pump water into tube forcing tube walls to …
