Lay out, position, align, and fit together fabricated parts of structural metal products preparatory to welding or riveting.

Aligns parts, using jack, turnbuckles, wedges, drift pins, pry bars, and hammer. Moves parts into position, manually or by hoist or crane. Marks reference points onto floor or face block and transposes them to workpiece, using measuring devices, squares, chalk, and soapstone. Gives directions to welder to build up low spots or short pieces with weld. Heattreats parts with acetylene torch. Straightens warped or bent parts, using sledge, hand torch, straightening press, or bulldozer. Locates reference points, using transit, and erects ladders and scaffolding to fit together large assemblies. Removes high spots and cuts bevels, using hand files, portable grinders, and cutting torch. Sets up face block, jigs and fixtures. Examines blueprints and plans sequence of operation, applying knowledge of geometry, effects of heat, weld shrinkage, machining, and metal thickness. Tack welds fitted parts together. Positions or tightens braces, jacks, clamps, ropes, or bolt straps, or bolts parts in positions for welding or riveting.

Mechanical -- Knowledge of machines and tools, including their designs, uses, repair, and maintenance. Building and Construction -- Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads. Mathematics -- Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications. Physics -- Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub- atomic structures and processes. Engineering and Technology -- Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.

Equipment Selection -- Determining the kind of tools and equipment needed to do a job. Mathematics -- Using mathematics to solve problems. Reading Comprehension -- Understanding written sentences and paragraphs in work related documents. Monitoring -- Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action. Critical Thinking -- Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.

Mathematical Reasoning -- The ability to choose the right mathematical methods or formulas to solve a problem. Deductive Reasoning -- The ability to apply general rules to specific problems to produce answers that make sense. Manual Dexterity -- The ability to quickly move your hand, your hand together with your arm, or your two hands to grasp, manipulate, or assemble objects. Visualization -- The ability to imagine how something will look after it is moved around or when its parts are moved or rearranged. Number Facility -- The ability to add, subtract, multiply, or divide quickly and correctly.

Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Performing General Physical Activities -- Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials. Getting Information -- Observing, receiving, and otherwise obtaining information from all relevant sources. Drafting, Laying Out, and Specifying Technical Devices, Parts, and Equipment -- Providing documentation, detailed instructions, drawings, or specifications to tell others about how devices, parts, equipment, or structures are to be fabricated, constructed, assembled, modified, maintained, or used. Identifying Objects, Actions, and Events -- Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events. Communicating with Supervisors, Peers, or Subordinates -- Providing information to supervisors, co-workers, and subordinates by telephone, in written form, e-mail, or in person.