![]() ![]() ![]() Welding reinforcing bars together, using standard arc welding or specialty welding processes. Reinforcing concrete with wire mesh or rebar for slabs-on-grade, floor systems, fireproofing of structural steel members (including clips, bolts, or steel studs), and simulated rock formations. Bending steel rods with hand tools or rod bending machine. Cutting bars to required lengths using hacksaw, bar cutters, or oxyacetylene torch. Selecting and placing rods in forms or at required locations spacing and fastening them together, using wire and pliers or mechanical splices, and installing all associated chairs, bolster bars, or cement bricks for correct spacing. Determining numbers, sizes, shapes, and location of reinforcing rods from blueprints, sketches, or oral instructions. Positioning and securing steel bars in concrete forms and other required locations to reinforce concrete. Measuring boards, timbers, or plywood using square, measuring tape, and ruler marking cutting lines on materials using pencil and scriber and sawing boards and plywood panels to required sizes. Verifying trueness of structure with plumb bob, electronic lasers, transit, total station, measuring devices, and carpenter's level. Covering sub-floor with building paper to keep out moisture and laying hardwood, parquet, and wood-strip block floors by nailing floors to sub-floor, cementing them to mastic, or asphalt base. Erecting framework for structures and laying sub-flooring. Assembling, cutting, and shaping materials and fastening them together with nails, dowel pins, or glue. ![]() Shaping materials to prescribed measurements, using saws, chisels, and planes. Mark cutting and assembling lines on materials, using pencil, chalk, and marking gauge. Preparing layout, using rule, framing square, and calipers. Selecting specified types of lumber or other materials. All handling, unloading, and working with boilermaker material. All demolition of boiler equipment, if replaced with the same or similar equipment or if the demolished parts are moved and rebuilt somewhere else. Economizers, superheaters, attemperators, air heaters, casing, downcomers, sludge boxes, and sluice troughs. Iron and steel stacks in connection with power plants and rolling mills. Blast furnaces and rolling mills, hot stoves cupolas, dump cars, and all gasometers as well as frame work in connection with same. Steam, air, gas, oil, and water, or other liquid tanks or containers requiring tight joints. All iron and steel pipeline, penstock, and flue work. ![]() Pontoons, purifying boxes, gas generators, wash tanks and scrubbers, standpipes, brewery vats, exception glass enameled tanks, and water towers. All connections between the boiler and stack (commonly known as breeching), built of sheet steel or iron, supports for same (which are not part of the building structure), uptakes, smoke boxes, air and water heaters, smoke consumers, and hot and cold air ducts (except when used for ventilation purposes). Constructing, erecting, and assembling all boiler parts and work in connection with the boiler, including boiler fronts, heat units, water walls, tube supports, and casings. Nature of work: assembling, analyzing defects in, and repairing boilers, pressure vessels, tanks, and vats in fields following blueprints and using hand tools and portable power tools and equipment. ![]()
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