||Elevator Installers and Repairers
- Assemble, install, repair, and maintain elevators, escalators, moving sidewalks, and dumbwaiters, using hand and power tools, and testing devices such as test lamps, ammeters, and voltmeters.
- Attach guide shoes and rollers to minimize the lateral motion of cars as they travel through shafts.
- Connect car frames to counterweights, using steel cables.
- Bolt or weld steel rails to the walls of shafts to guide elevators, working from scaffolding or platforms.
- Assemble elevator cars, installing each car's platform, walls, and doors.
- Assemble electrically powered stairs, steel frameworks, and tracks, and install associated motors and electrical wiring.
- Bolt or arc weld pressure vessel structures and parts together, using wrenches or welding equipment.
- Assemble large vessels in an on-site fabrication shop prior to installation to ensure proper fit.
- Bell, bead with power hammers, or weld pressure vessel tube ends to ensure leakproof joints.
||Explosives Workers, Ordnance Handling Experts, and Blasters
- Assemble and position equipment, explosives, and blasting caps in holes at specified depths, or load perforating guns or torpedoes with explosives.
- Insert waterproof sealers, bullets, and/or powder charges into guns, and screw gun ports back into place.
- Insert powder charges into chambers of sidewall sample-taking cylinders, and assemble cylinders, using special wrenches.
||Pipe Fitters and Steamfitters
- Assemble or secure pipes, tubes, fittings, or related equipment, according to specifications, by welding, brazing, cementing, soldering, or threading joints.
- Attach pipes to walls, structures, or fixtures, such as radiators or tanks, using brackets, clamps, tools, or welding equipment.
- Assemble pipe sections, tubing, or fittings, using couplings, clamps, screws, bolts, cement, plastic solvent, caulking, or soldering, brazing, or welding equipment.
- Weld small pipes or special piping, using specialized techniques, equipment, or materials, such as computer-assisted welding or microchip fabrication.
||Structural Iron and Steel Workers
- Cut, bend, or weld steel pieces, using metal shears, torches, or welding equipment.
||Reinforcing Iron and Rebar Workers
- Bend steel rods with hand tools or rodbending machines and weld them with arc-welding equipment.
- Connect pipe pieces and seal joints, using welding equipment, cement, or glue.
||Roustabouts, Oil and Gas
- Bolt together pump and engine parts.
||Helpers--Pipelayers, Plumbers, Pipefitters, and Steamfitters
- Install gas burners to convert furnaces from wood, coal, or oil.
- Build sleds from logs and timbers for use in hauling camp buildings and machinery through wooded areas.
- Weld metal parts together, using portable gas welding equipment.
- Perform minor plumbing, welding, or concrete mixing work.
||Rotary Drill Operators, Oil and Gas
- Bolt together pump and engine parts, and connect tanks and flow lines.
- Operate cutting torches and welding equipment, while working with conduit and metal components to construct devices associated with electrical functions.
||Rail-Track Laying and Maintenance Equipment Operators
- Weld sections of track together, such as switch points and frogs.
||Earth Drillers, Except Oil and Gas
- Assemble and position machines, augers, casing pipes, and other equipment, using hand and power tools.