- Bolt or weld steel rails to the walls of shafts to guide elevators, working from scaffolding or platforms.
Occupations with related tasks Save Table: XLSX CSV
- Connect columns, beams, and girders with bolts, following blueprints and instructions from supervisors.
- Bolt aligned structural steel members in position for permanent riveting, bolting, or welding into place.
- Cut, bend, or weld steel pieces, using metal shears, torches, or welding equipment.
- Erect metal or precast concrete components for structures, such as buildings, bridges, dams, towers, storage tanks, fences, or highway guard rails.
- Force structural steel members into final positions, using turnbuckles, crowbars, jacks, or hand tools.
- Drive drift pins through rivet holes to align rivet holes in structural steel members with corresponding holes in previously placed members.
- Assemble hoisting equipment or rigging, such as cables, pulleys, or hooks, to move heavy equipment or materials.
- Insert sealing strips, wiring, insulating material, ladders, flanges, gauges, or valves, depending on types of structures being assembled.
- Catch hot rivets in buckets and insert rivets in holes, using tongs.
- Read specifications or blueprints to determine the locations, quantities, or sizes of materials required.
- Fasten structural steel members to hoist cables, using chains, cables, or rope.
- Hoist steel beams, girders, or columns into place, using cranes or signaling hoisting equipment operators to lift and position structural steel members.
- Verify vertical and horizontal alignment of structural steel members, using plumb bobs, laser equipment, transits, or levels.
- Pull, push, or pry structural steel members into approximate positions for bolting into place.
- Unload and position prefabricated steel units for hoisting, as needed.
- Fabricate metal parts, such as steel frames, columns, beams, or girders, according to blueprints or instructions from supervisors.
- Dismantle structures or equipment.
- Ride on girders or other structural steel members to position them, or use rope to guide them into position.
- Hold rivets while riveters use air hammers to form heads on rivets.
- Place blocks under reinforcing bars used to reinforce floors.
- Connect columns, beams, and girders with bolts, following blueprints and instructions from supervisors.
- Bolt aligned structural steel members in position for permanent riveting, bolting, or welding into place.
- Cut, bend, or weld steel pieces, using metal shears, torches, or welding equipment.
- Erect metal or precast concrete components for structures, such as buildings, bridges, dams, towers, storage tanks, fences, or highway guard rails.
- Force structural steel members into final positions, using turnbuckles, crowbars, jacks, or hand tools.
- Drive drift pins through rivet holes to align rivet holes in structural steel members with corresponding holes in previously placed members.
- Assemble hoisting equipment or rigging, such as cables, pulleys, or hooks, to move heavy equipment or materials.
- Insert sealing strips, wiring, insulating material, ladders, flanges, gauges, or valves, depending on types of structures being assembled.
- Catch hot rivets in buckets and insert rivets in holes, using tongs.
- Cut and screw together metal channels to make floor or ceiling frames, according to plans for the location of rooms or hallways.
- Install horizontal and vertical metal or wooden studs to frames so that wallboard can be attached to interior walls.
- Fasten metal or rockboard lath to the structural framework of walls, ceilings, or partitions of buildings, using nails, screws, staples, or wire-ties.
- Install metal lath where plaster applications will be exposed to weather or water, or for curved or irregular surfaces.
- Fit and fasten wallboard or drywall into position on wood or metal frameworks, using glue, nails, or screws.
- Assemble or install metal framing or decorative trim for windows, doorways, or vents.
- Cut fixture or border tiles to size, using keyhole saws, and insert them into surrounding frameworks.
- Hang drywall panels on metal frameworks of walls and ceilings in offices, schools, or other large buildings, using lifts or hoists to adjust panel heights, when necessary.
- Suspend angle iron grids or channel irons from ceilings, using wire.
- Install blanket insulation between studs and tack plastic moisture barriers over insulation.
- Apply or mount acoustical tile or blocks, strips, or sheets of shock-absorbing materials to ceilings or walls of buildings to reduce reflection of sound or to decorate rooms.
- Mount tile, using adhesives, or by nailing, screwing, stapling, or wire-tying lath directly to structural frameworks.
- Nail channels or wood furring strips to surfaces to provide mounting for tile.
- Apply cement to backs of tiles and press tiles into place, aligning them with layout marks or joints of previously laid tile.
- Read blueprints or other specifications to determine methods of installation, work procedures, or material or tool requirements.
- Measure and mark surfaces to lay out work, according to blueprints or drawings, using tape measures, straightedges or squares, and marking devices.
- Measure and cut openings in panels or tiles for electrical outlets, windows, vents, plumbing, or other fixtures, using keyhole saws or other cutting tools.
- Cut metal or wood framing and trim to size, using cutting tools.
- Inspect furrings, mechanical mountings, or masonry surfaces for plumbness and level, using spirit or water levels.
- Trim rough edges from wallboard to maintain even joints, using knives.
- Coordinate work with drywall finishers who cover the seams between drywall panels.
- Scribe and cut edges of tile to fit walls where wall molding is not specified.
- Hang dry lines to wall moldings to guide positioning of main runners.
- Seal joints between ceiling tiles and walls.
- Remove existing plaster, drywall, or paneling, using crowbars and hammers.
- Wash concrete surfaces before mounting tile to increase adhesive qualities of surfaces, using washing soda and zinc sulfate solution.
- Cut and screw together metal channels to make floor or ceiling frames, according to plans for the location of rooms or hallways.
- Install horizontal and vertical metal or wooden studs to frames so that wallboard can be attached to interior walls.
- Fasten metal or rockboard lath to the structural framework of walls, ceilings, or partitions of buildings, using nails, screws, staples, or wire-ties.
- Install metal lath where plaster applications will be exposed to weather or water, or for curved or irregular surfaces.
- Fit and fasten wallboard or drywall into position on wood or metal frameworks, using glue, nails, or screws.
- Assemble or install metal framing or decorative trim for windows, doorways, or vents.
- Cut fixture or border tiles to size, using keyhole saws, and insert them into surrounding frameworks.
- Hang drywall panels on metal frameworks of walls and ceilings in offices, schools, or other large buildings, using lifts or hoists to adjust panel heights, when necessary.
- Suspend angle iron grids or channel irons from ceilings, using wire.
- Install blanket insulation between studs and tack plastic moisture barriers over insulation.
- Apply or mount acoustical tile or blocks, strips, or sheets of shock-absorbing materials to ceilings or walls of buildings to reduce reflection of sound or to decorate rooms.
- Mount tile, using adhesives, or by nailing, screwing, stapling, or wire-tying lath directly to structural frameworks.
- Nail channels or wood furring strips to surfaces to provide mounting for tile.
- Apply cement to backs of tiles and press tiles into place, aligning them with layout marks or joints of previously laid tile.
- Stretch wire, wire mesh, or chain link fencing between posts, and attach fencing to frames.
- Complete top fence rails of metal fences by connecting tube sections, using metal sleeves.
- Insert metal tubing through rail supports.
- Weld metal parts together, using portable gas welding equipment.
- Attach rails or tension wire along bottoms of posts to form fencing frames.
- Attach fence rail supports to posts, using hammers and pliers.
- Assemble gates, and fasten gates into position, using hand tools.
- Nail top and bottom rails to fence posts, or insert them in slots on posts.
- Erect alternate panel, basket weave, and louvered fences.
- Nail pointed slats to rails to construct picket fences.
- Construct and repair barriers, retaining walls, trellises, and other types of fences, walls, and gates.
- Establish the location for a fence, and gather information needed to ensure that there are no electric cables or water lines in the area.
- Set metal or wooden posts in upright positions in postholes.
- Measure and lay out fence lines and mark posthole positions, following instructions, drawings, or specifications.
- Align posts, by lines or sighting, and verify vertical alignment of posts, using plumb bobs or spirit levels.
- Dig postholes, using spades, posthole diggers, or power-driven augers.
- Mix and pour concrete around bases of posts, or tamp soil into postholes to embed posts.
- Make rails for fences, by sawing lumber or by cutting metal tubing to required lengths.
- Discuss fencing needs with customers, and estimate and quote prices.
- Blast rock formations and rocky areas with dynamite to facilitate posthole digging.
- Stretch wire, wire mesh, or chain link fencing between posts, and attach fencing to frames.
- Complete top fence rails of metal fences by connecting tube sections, using metal sleeves.
- Insert metal tubing through rail supports.
- Weld metal parts together, using portable gas welding equipment.
- Attach rails or tension wire along bottoms of posts to form fencing frames.
- Attach fence rail supports to posts, using hammers and pliers.
- Assemble gates, and fasten gates into position, using hand tools.
- Nail top and bottom rails to fence posts, or insert them in slots on posts.
- Erect alternate panel, basket weave, and louvered fences.
- Nail pointed slats to rails to construct picket fences.
- Construct and repair barriers, retaining walls, trellises, and other types of fences, walls, and gates.
- Bolt or arc weld pressure vessel structures and parts together, using wrenches or welding equipment.
- Position, align, and secure structural parts or related assemblies to boiler frames, tanks, or vats of pressure vessels, following blueprints.
- Bell, bead with power hammers, or weld pressure vessel tube ends to ensure leakproof joints.
- Install refractory bricks or other heat-resistant materials in fireboxes of pressure vessels.
- Attach rigging and signal crane or hoist operators to lift heavy frame and plate sections or other parts into place.
- Study blueprints to determine locations, relationships, or dimensions of parts.
- Repair or replace defective pressure vessel parts, such as safety valves or regulators, using torches, jacks, caulking hammers, power saws, threading dies, welding equipment, or metalworking machinery.
- Locate and mark reference points for columns or plates on boiler foundations, following blueprints and using straightedges, squares, transits, or measuring instruments.
- Install manholes, handholes, taps, tubes, valves, gauges, or feedwater connections in drums of water tube boilers, using hand tools.
- Shape or fabricate parts, such as stacks, uptakes, or chutes, to adapt pressure vessels, heat exchangers, or piping to premises, using heavy-metalworking machines such as brakes, rolls, or drill presses.
- Assemble large vessels in an on-site fabrication shop prior to installation to ensure proper fit.
- Lay out plate, sheet steel, or other heavy metal and locate and mark bending and cutting lines, using protractors, compasses, and drawing instruments or templates.
- Examine boilers, pressure vessels, tanks, or vats to locate defects, such as leaks, weak spots, or defective sections, so that they can be repaired.
- Shape seams, joints, or irregular edges of pressure vessel sections or structural parts to attain specified fit of parts, using cutting torches, hammers, files, or metalworking machines.
- Inspect assembled vessels or individual components, such as tubes, fittings, valves, controls, or auxiliary mechanisms, to locate any defects.
- Straighten or reshape bent pressure vessel plates or structure parts, using hammers, jacks, or torches.
- Clean pressure vessel equipment, using scrapers, wire brushes, and cleaning solvents.
- Bolt or arc weld pressure vessel structures and parts together, using wrenches or welding equipment.
- Position, align, and secure structural parts or related assemblies to boiler frames, tanks, or vats of pressure vessels, following blueprints.
- Bell, bead with power hammers, or weld pressure vessel tube ends to ensure leakproof joints.
- Install refractory bricks or other heat-resistant materials in fireboxes of pressure vessels.
- Assemble pipe sections, tubing, or fittings, using couplings, clamps, screws, bolts, cement, plastic solvent, caulking, or soldering, brazing, or welding equipment.
- Attach pipes to walls, structures, or fixtures, such as radiators or tanks, using brackets, clamps, tools, or welding equipment.
- Weld small pipes or special piping, using specialized techniques, equipment, or materials, such as computer-assisted welding or microchip fabrication.
- Shut off steam, water, or other gases or liquids from pipe sections, using valve keys or wrenches.
- Install underground storm, sanitary, or water piping systems, extending piping as needed to connect fixtures and plumbing.
- Locate and mark the position of pipe installations, connections, passage holes, or fixtures in structures, using measuring instruments such as rulers or levels.
- Cut, thread, or hammer pipes to specifications, using tools such as saws, cutting torches, pipe threaders, or pipe benders.
- Lay out full scale drawings of pipe systems, supports, or related equipment, according to blueprints.
- Plan pipe system layout, installation, or repair, according to specifications.
- Review blueprints, building codes, or specifications to determine work details or procedures.
- Select pipe sizes, types, or related materials, such as supports, hangers, or hydraulic cylinders, according to specifications.
- Fill pipes or plumbing fixtures with water or air and observe pressure gauges to detect and locate leaks.
- Direct helpers engaged in pipe cutting, preassembly, or installation of plumbing systems or components.
- Inspect, examine, or test installed systems or pipe lines, using pressure gauge, hydrostatic testing, observation, or other methods.
- Install pipe assemblies, fittings, valves, appliances such as dishwashers or water heaters, or fixtures such as sinks or toilets, using hand or power tools.
- Anchor steel supports from ceiling joists to hold pipes in place.
- Modify, clean, or maintain pipe systems, units, fittings, or related machines or equipment, using hand or power tools.
- Install automatic controls to regulate pipe systems.
- Estimate time, material, or labor costs for use in project plans.
- Keep records of work assignments.
- Inspect structures to assess material or equipment needs, to establish the sequence of pipe installations, or to plan installation around obstructions, such as electrical wiring.
- Maintain or repair plumbing by replacing defective washers, replacing or mending broken pipes, or opening clogged drains.
- Repair or remove and replace system components.
- Cut openings in structures to accommodate pipes or pipe fittings, using hand or power tools.
- Install green plumbing equipment, such as faucet flow restrictors, dual-flush or pressure-assisted flush toilets, or tankless hot water heaters.
- Inspect work sites for obstructions or holes that could cause structural weakness.
- Install pipe systems to support alternative energy-fueled systems, such as geothermal heating or cooling systems.
- Install fixtures, appliances, or equipment designed to reduce water or energy consumption.
- Repair hydraulic or air pumps.
- Operate motorized pumps to remove water from flooded manholes, basements, or facility floors.
- Assemble pipe sections, tubing, or fittings, using couplings, clamps, screws, bolts, cement, plastic solvent, caulking, or soldering, brazing, or welding equipment.
- Attach pipes to walls, structures, or fixtures, such as radiators or tanks, using brackets, clamps, tools, or welding equipment.
- Weld small pipes or special piping, using specialized techniques, equipment, or materials, such as computer-assisted welding or microchip fabrication.
- Install pre-assembled metal or wood frameworks for windows or doors to be fitted with glass panels, using hand tools.
- Fabricate or install metal sashes or moldings for glass installation, using aluminum or steel framing.
- Set glass doors into frames and bolt metal hinges, handles, locks, or other hardware to attach doors to frames and walls.
- Cut and attach mounting strips, metal or wood moldings, rubber gaskets, or metal clips to surfaces in preparation for mirror installation.
- Assemble, erect, or dismantle scaffolds, rigging, or hoisting equipment.
- Secure mirrors in position, using mastic cement, putty, bolts, or screws.
- Fasten glass panes into wood sashes or frames with clips, points, or moldings, adding weather seals or putty around pane edges to seal joints.
- Cut, assemble, fit, or attach metal-framed glass enclosures for showers, bathtubs, display cases, skylights, solariums, or other structures.
- Read and interpret blueprints or specifications to determine size, shape, color, type, or thickness of glass, location of framing, installation procedures, or staging or scaffolding materials required.
- Determine plumb of walls or ceilings, using plumb lines and levels.
- Operate cranes or hoists with suction cups to lift large, heavy pieces of glass.
- Cut, fit, install, repair, or replace glass or glass substitutes, such as plastic or aluminum, in building interiors or exteriors or in furniture or other products.
- Drive trucks to installation sites and unload mirrors, glass equipment, or tools.
- Load and arrange glass or mirrors onto delivery trucks, using suction cups or cranes to lift glass.
- Measure mirrors and dimensions of areas to be covered to determine work procedures.
- Pack spaces between moldings and glass with glazing compounds and trim excess material with glazing knives.
- Cut and remove broken glass prior to installing replacement glass.
- Measure and mark outlines or patterns on glass to indicate cutting lines.
- Grind or polish glass, smoothing edges when necessary.
- Score glass with cutters' wheels, breaking off excess glass by hand or with notched tools.
- Prepare glass for cutting by resting it on rack edges or against cutting tables and brushing thin layer of oil along cutting lines or dipping cutting tools in oil.
- Move furniture to clear work sites and cover floors or furnishings with drop cloths.
- Confer with customers to determine project requirements or to provide cost estimates.
- Select the type or color of glass or mirror according to specifications.
- Measure, cut, fit, and press anti-glare adhesive film to glass or spray glass with tinting solution to prevent light glare.
- Assemble and cement sections of stained glass together.
- Create patterns on glass by etching, sandblasting, or painting designs.
- Install pre-assembled metal or wood frameworks for windows or doors to be fitted with glass panels, using hand tools.
- Fabricate or install metal sashes or moldings for glass installation, using aluminum or steel framing.
- Set glass doors into frames and bolt metal hinges, handles, locks, or other hardware to attach doors to frames and walls.
- Cut and attach mounting strips, metal or wood moldings, rubber gaskets, or metal clips to surfaces in preparation for mirror installation.
- Assemble, erect, or dismantle scaffolds, rigging, or hoisting equipment.
- Secure mirrors in position, using mastic cement, putty, bolts, or screws.
- Fasten glass panes into wood sashes or frames with clips, points, or moldings, adding weather seals or putty around pane edges to seal joints.
- Cut, assemble, fit, or attach metal-framed glass enclosures for showers, bathtubs, display cases, skylights, solariums, or other structures.
- Fasten seams or joints together with welds, bolts, cement, rivets, solder, caulks, metal drive clips, or bonds to assemble components into products or to repair sheet metal items.
- Fasten roof panel edges or machine-made moldings to structures by nailing or welding.
- Install assemblies, such as flashing, pipes, tubes, heating and air conditioning ducts, furnace casings, rain gutters, or downspouts in supportive frameworks.
- Secure metal roof panels in place by interlocking and fastening grooved panel edges.
- Maintain equipment, making repairs or modifications when necessary.
- Fabricate ducts for high efficiency heating, ventilating, and air conditioning (HVAC) systems to maximize efficiency of systems.
- Transport prefabricated parts to construction sites for assembly and installation.
- Hire, train, or supervise new employees or apprentices.
- Lay out, measure, and mark dimensions and reference lines on material, such as roofing panels, using calculators, scribes, dividers, squares, or rulers.
- Fabricate or alter parts at construction sites, using shears, hammers, punches, or drills.
- Determine project requirements, such as scope, assembly sequences, or required methods or materials, using blueprints, drawings, or written or verbal instructions.
- Maneuver completed roofing units into position for installation.
- Select gauges or types of sheet metal or nonmetallic material, according to product specifications.
- Shape metal material over anvils, blocks, or other forms, using hand tools.
- Trim, file, grind, deburr, buff, or smooth surfaces, seams, or joints of assembled parts, using hand tools or portable power tools.
- Inspect individual parts, assemblies, or installations, using measuring instruments, such as calipers, scales, or micrometers.
- Develop or lay out patterns, using computerized metalworking equipment.
- Convert blueprints into shop drawings to be followed in the construction or assembly of sheet metal products.
- Perform sheet metal work necessary for solar panel installations.
- Verify that heating, ventilating, and air conditioning (HVAC) systems are designed, installed, and calibrated in accordance with green certification standards, such as those of Leadership in Energy and Environmental Design (LEED).
- Perform building commissioning activities by completing mechanical inspections of a building's water, lighting, or heating, ventilating, and air conditioning (HVAC) systems.
- Finish parts, using hacksaws or hand, rotary, or squaring shears.
- Fasten seams or joints together with welds, bolts, cement, rivets, solder, caulks, metal drive clips, or bonds to assemble components into products or to repair sheet metal items.
- Fasten roof panel edges or machine-made moldings to structures by nailing or welding.
- Install assemblies, such as flashing, pipes, tubes, heating and air conditioning ducts, furnace casings, rain gutters, or downspouts in supportive frameworks.
- Secure metal roof panels in place by interlocking and fastening grooved panel edges.
- Position and secure steel bars, rods, cables, or mesh in concrete forms, using fasteners, rod-bending machines, blowtorches, or hand tools.
- Bend steel rods with hand tools or rod-bending machines and weld them with arc-welding equipment.
- Space and fasten together rods in forms according to blueprints, using wire and pliers.
- Determine quantities, sizes, shapes, and locations of reinforcing rods from blueprints, sketches, or oral instructions.
- Cut rods to required lengths, using metal shears, hacksaws, bar cutters, or acetylene torches.
- Place blocks under rebar to hold the bars off the deck when reinforcing floors.
- Cut and fit wire mesh or fabric, using hooked rods, and position fabric or mesh in concrete to reinforce concrete.
- Position and secure steel bars, rods, cables, or mesh in concrete forms, using fasteners, rod-bending machines, blowtorches, or hand tools.
- Bend steel rods with hand tools or rod-bending machines and weld them with arc-welding equipment.
- Space and fasten together rods in forms according to blueprints, using wire and pliers.
- Perform minor plumbing, welding, or concrete mixing work.
- Assemble and fasten materials to make frameworks or props, using hand tools and wood screws, nails, dowel pins, or glue.
- Erect scaffolding or ladders for assembling structures above ground level.
- Install structures or fixtures, such as windows, frames, floorings, trim, or hardware, using carpenters' hand or power tools.
- Install rough door and window frames, subflooring, fixtures, or temporary supports in structures undergoing construction or repair.
- Cover subfloors with building paper to keep out moisture and lay hardwood, parquet, or wood-strip-block floors by nailing floors to subfloor or cementing them to mastic or asphalt base.
- Construct forms or chutes for pouring concrete.
- Build or repair cabinets, doors, frameworks, floors, or other wooden fixtures used in buildings, using woodworking machines, carpenter's hand tools, or power tools.
- Apply shock-absorbing, sound-deadening, or decorative paneling to ceilings or walls.
- Examine structural timbers and supports to detect decay, and replace timbers as required, using hand tools, nuts, and bolts.
- Follow established safety rules and regulations and maintain a safe and clean environment.
- Measure and mark cutting lines on materials, using a ruler, pencil, chalk, and marking gauge.
- Study specifications in blueprints, sketches, or building plans to prepare project layout and determine dimensions and materials required.
- Shape or cut materials to specified measurements, using hand tools, machines, or power saws.
- Verify trueness of structure, using plumb bob and level.
- Inspect ceiling or floor tile, wall coverings, siding, glass, or woodwork to detect broken or damaged structures.
- Maintain records, document actions, and present written progress reports.
- Remove damaged or defective parts or sections of structures and repair or replace, using hand tools.
- Maintain job records and schedule work crew.
- Anchor and brace forms and other structures in place, using nails, bolts, anchor rods, steel cables, planks, wedges, and timbers.
- Bore boltholes in timber, masonry or concrete walls, using power drill.
- Dig or direct digging of post holes and set poles to support structures.
- Arrange for subcontractors to deal with special areas, such as heating or electrical wiring work.
- Finish surfaces of woodwork or wallboard in houses or buildings, using paint, hand tools, or paneling.
- Select and order lumber or other required materials.
- Work with or remove hazardous material.
- Fill cracks or other defects in plaster or plasterboard and sand patch, using patching plaster, trowel, and sanding tool.
- Prepare cost estimates for clients or employers.
- Build sleds from logs and timbers for use in hauling camp buildings and machinery through wooded areas.
- Perform minor plumbing, welding, or concrete mixing work.
- Assemble and fasten materials to make frameworks or props, using hand tools and wood screws, nails, dowel pins, or glue.
- Erect scaffolding or ladders for assembling structures above ground level.
- Install structures or fixtures, such as windows, frames, floorings, trim, or hardware, using carpenters' hand or power tools.
- Install rough door and window frames, subflooring, fixtures, or temporary supports in structures undergoing construction or repair.
- Cover subfloors with building paper to keep out moisture and lay hardwood, parquet, or wood-strip-block floors by nailing floors to subfloor or cementing them to mastic or asphalt base.
- Construct forms or chutes for pouring concrete.
- Build or repair cabinets, doors, frameworks, floors, or other wooden fixtures used in buildings, using woodworking machines, carpenter's hand tools, or power tools.
- Apply shock-absorbing, sound-deadening, or decorative paneling to ceilings or walls.
- Examine structural timbers and supports to detect decay, and replace timbers as required, using hand tools, nuts, and bolts.
- Install sheet metal around insulated pipes with screws to protect the insulation from weather conditions or physical damage.
- Apply, remove, and repair insulation on industrial equipment, pipes, ductwork, or other mechanical systems such as heat exchangers, tanks, and vessels, to help control noise and maintain temperatures.
- Fit insulation around obstructions, and shape insulating materials and protective coverings as required.
- Cover, seal, or finish insulated surfaces or access holes with plastic covers, canvas strips, sealants, tape, cement, or asphalt mastic.
- Distribute insulating materials evenly into small spaces within floors, ceilings, or walls, using blowers and hose attachments or cement mortar.
- Move controls, buttons, or levers to start blowers, and to regulate flow of materials through nozzles.
- Measure and cut insulation for covering surfaces, using tape measures, handsaws, knives, and scissors.
- Select appropriate insulation, such as fiberglass, Styrofoam, or cork, based on the heat retaining or excluding characteristics of the material.
- Determine the amounts and types of insulation needed, and methods of installation, based on factors such as location, surface shape, and equipment use.
- Read blueprints and specifications to determine job requirements.
- Prepare surfaces for insulation application by brushing or spreading on adhesives, cement, or asphalt, or by attaching metal pins to surfaces.
- Remove or seal off old asbestos insulation, following safety procedures.
- Fill blower hoppers with insulating materials.
- Install sheet metal around insulated pipes with screws to protect the insulation from weather conditions or physical damage.
- Apply, remove, and repair insulation on industrial equipment, pipes, ductwork, or other mechanical systems such as heat exchangers, tanks, and vessels, to help control noise and maintain temperatures.
- Fit insulation around obstructions, and shape insulating materials and protective coverings as required.
- Cover, seal, or finish insulated surfaces or access holes with plastic covers, canvas strips, sealants, tape, cement, or asphalt mastic.
- Distribute insulating materials evenly into small spaces within floors, ceilings, or walls, using blowers and hose attachments or cement mortar.
- Move controls, buttons, or levers to start blowers, and to regulate flow of materials through nozzles.
- Install various types of bolts, including truss, glue, and resin bolts, traversing entire ceiling spans.
- Force bolts into holes, using hydraulic mechanisms of self-propelled bolting machines.
- Perform ventilation tasks, such as hanging ventilation curtains and tubes.
- Rotate chucks to turn bolts and open expansion heads against rock formations.
- Tighten ends of anchored truss bolts, using turnbuckles.
- Drill bolt holes into roofs at specified distances from ribs or adjacent bolts.
- Pull down loose rock that cannot be supported.
- Position bolting machines, and insert drill bits into chucks.
- Perform safety checks on equipment before operating.
- Perform tests to determine if methane gas is present.
- Dust rocks after bolting.
- Drill test holes and test bolts for specified tension, using torque wrenches.
- Position safety jacks to support underground mine roofs until bolts can be installed.
- Remove drill bits from chucks after drilling holes, and insert bolts into chucks.
- Install various types of bolts, including truss, glue, and resin bolts, traversing entire ceiling spans.
- Force bolts into holes, using hydraulic mechanisms of self-propelled bolting machines.
- Perform ventilation tasks, such as hanging ventilation curtains and tubes.
- Rotate chucks to turn bolts and open expansion heads against rock formations.
- Tighten ends of anchored truss bolts, using turnbuckles.
- Install anchor bolts, steel plates, door sills and other fixtures in freshly poured concrete or pattern or stamp the surface to provide a decorative finish.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
- Fabricate concrete beams, columns, and panels.
- Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
- Check the forms that hold the concrete to see that they are properly constructed.
- Set the forms that hold concrete to the desired pitch and depth, and align them.
- Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float.
- Monitor how the wind, heat, or cold affect the curing of the concrete throughout the entire process.
- Mold expansion joints and edges, using edging tools, jointers, and straightedge.
- Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
- Direct the casting of the concrete and supervise laborers who use shovels or special tools to spread it.
- Produce rough concrete surface, using broom.
- Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface.
- Operate power vibrator to compact concrete.
- Waterproof or restore concrete surfaces, using appropriate compounds.
- Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
- Chip, scrape, and grind high spots, ridges, and rough projections to finish concrete, using pneumatic chisels, power grinders, or hand tools.
- Cut out damaged areas, drill holes for reinforcing rods, and position reinforcing rods to repair concrete, using power saw and drill.
- Wet concrete surface, and rub with stone to smooth surface and obtain specified finish.
- Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.
- Build wooden molds, and clamp molds around area to be repaired, using hand tools.
- Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish.
- Polish surface, using polishing or surfacing machine.
- Cut metal division strips, and press them into terrazzo base so that top edges form desired design or pattern.
- Push roller over surface to embed chips in surface.
- Apply muriatic acid to clean surface, and rinse with water.
- Install anchor bolts, steel plates, door sills and other fixtures in freshly poured concrete or pattern or stamp the surface to provide a decorative finish.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
- Fabricate concrete beams, columns, and panels.
- Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
- Operate cutting torches and welding equipment, while working with conduit and metal components to construct devices associated with electrical functions.
- Erect electrical system components and barricades, and rig scaffolds, hoists, and shoring.
- Strip insulation from wire ends, using wire stripping pliers, and attach wires to terminals for subsequent soldering.
- Trace out short circuits in wiring, using test meter.
- Measure, cut, and bend wire and conduit, using measuring instruments and hand tools.
- Examine electrical units for loose connections and broken insulation and tighten connections, using hand tools.
- Maintain tools, vehicles, and equipment and keep parts and supplies in order.
- Drill holes and pull or push wiring through openings, using hand and power tools.
- Clean work area and wash parts.
- Perform semi-skilled and unskilled laboring duties related to the installation, maintenance and repair of a wide variety of electrical systems and equipment.
- Thread conduit ends, connect couplings, and fabricate and secure conduit support brackets, using hand tools.
- Disassemble defective electrical equipment, replace defective or worn parts, and reassemble equipment, using hand tools.
- Construct controllers and panels, using power drills, drill presses, taps, saws, and punches.
- Transport tools, materials, equipment, and supplies to work site by hand, handtruck, or heavy, motorized truck.
- String transmission lines or cables through ducts or conduits, under the ground, through equipment, or to towers.
- Install copper-clad ground rods, using a manual post driver.
- Dig trenches or holes for installation of conduit or supports.
- Raise, lower, or position equipment, tools, and materials, using hoist, hand line, or block and tackle.
- Bolt component parts together to form tower assemblies, using hand tools.
- Trim trees and clear undergrowth along right-of-way.
- Requisition materials, using warehouse requisition or release forms.
- Solder electrical connections, using soldering iron.
- Paint a variety of objects related to electrical functions.
- Break up concrete, using airhammer, to facilitate installation, construction, or repair of equipment.
- Operate heavy equipment, such as backhoes.
- Operate cutting torches and welding equipment, while working with conduit and metal components to construct devices associated with electrical functions.
- Erect electrical system components and barricades, and rig scaffolds, hoists, and shoring.
- Connect pipe pieces and seal joints, using welding equipment, cement, or glue.
- Install or use instruments such as lasers, grade rods, or transit levels.
- Cut pipes to required lengths.
- Cover pipes with earth or other materials.
- Install or repair sanitary or stormwater sewer structures or pipe systems.
- Align and position pipes to prepare them for welding or sealing.
- Check slopes for conformance to requirements, using levels or lasers.
- Lay out pipe routes, following written instructions or blueprints and coordinating layouts with supervisors.
- Operate mechanized equipment, such as pickup trucks, rollers, tandem dump trucks, front-end loaders, or backhoes.
- Grade or level trench bases, using tamping machines or hand tools.
- Dig trenches to desired or required depths, by hand or using trenching tools.
- Tap and drill holes into pipes to introduce auxiliary lines or devices.
- Locate existing pipes needing repair or replacement, using magnetic or radio indicators.
- Train or supervise others in laying pipe.
- Connect pipe pieces and seal joints, using welding equipment, cement, or glue.
- Install metal molding at wall corners to secure wallboard.
- Spread sealing compound between boards or panels or over cracks, holes, nail heads, or screw heads, using trowels, broadknives, or spatulas.
- Press paper tape over joints to embed tape into sealing compound and to seal joints.
- Apply additional coats to fill in holes and make surfaces smooth.
- Seal joints between plasterboard or other wallboard to prepare wall surfaces for painting or papering.
- Spread and smooth cementing material over tape, using trowels or floating machines to blend joints with wall surfaces.
- Sand or patch nicks or cracks in plasterboard or wallboard.
- Mix sealing compounds by hand or with portable electric mixers.
- Work on high ceilings, using scaffolding or other tools, such as stilts.
- Select the correct sealing compound or tape.
- Countersink nails or screws below surfaces of walls before applying sealing compounds, using hammers or screwdrivers.
- Remove extra compound after surfaces have been covered sufficiently.
- Apply texturizing compounds or primers to walls or ceilings before final finishing, using trowels, brushes, rollers, or spray guns.
- Check adhesives to ensure that they will work and will remain durable.
- Sand rough spots of dried cement between applications of compounds.
- Use mechanical applicators that spread compounds and embed tape in one operation.
- Install metal molding at wall corners to secure wallboard.
- Weld sections of track together, such as switch points and frogs.
- Patrol assigned track sections so that damaged or broken track can be located and reported.
- Repair or adjust track switches, using wrenches and replacement parts.
- Observe leveling indicator arms to verify levelness and alignment of tracks.
- Operate single- or multiple-head spike driving machines to drive spikes into ties and secure rails.
- Operate track wrenches to tighten or loosen bolts at joints that hold ends of rails together.
- Cut rails to specified lengths, using rail saws.
- Lubricate machines, change oil, or fill hydraulic reservoirs to specified levels.
- Drill holes through rails, tie plates, or fishplates for insertion of bolts or spikes, using power drills.
- Clean tracks or clear ice or snow from tracks or switch boxes.
- Clean, grade, or level ballast on railroad tracks.
- Raise rails, using hydraulic jacks, to allow for tie removal and replacement.
- Adjust controls of machines that spread, shape, raise, level, or align track, according to specifications.
- Dress and reshape worn or damaged railroad switch points or frogs, using portable power grinders.
- Clean or make minor repairs to machines or equipment.
- Grind ends of new or worn rails to attain smooth joints, using portable grinders.
- Operate single- or multiple-head spike pullers to pull old spikes from ties.
- String and attach wire-guidelines machine to rails so that tracks or rails can be aligned or leveled.
- Engage mechanisms that lay tracks or rails to specified gauges.
- Drive graders, tamping machines, brooms, or ballast spreading machines to redistribute gravel or ballast between rails.
- Drive vehicles that automatically move and lay tracks or rails over sections of track to be constructed, repaired, or maintained.
- Turn wheels of machines, using lever controls, to adjust guidelines for track alignments or grades, following specifications.
- Push controls to close grasping devices on track or rail sections so that they can be raised or moved.
- Operate tie-adzing machines to cut ties and permit insertion of fishplates that hold rails.
- Paint railroad signs, such as speed limits or gate-crossing warnings.
- Spray ties, fishplates, or joints with oil to protect them from weathering.
- Weld sections of track together, such as switch points and frogs.
