NCCER Sheet Metal Worker case studies
NCCER Sheet Metal Worker · Put your knowledge to work in context.
The NCCER Sheet Metal Worker credential is a craft assessment and training pathway for people who fabricate, assemble, and install ductwork and architectural sheet metal. NCCER publishes standardized curricula through which trainees progress level by level, and its assessments are used by contractors, apprenticeship programs, and training centers to confirm that a worker can perform at a given level. It is not a government license, and holding it does not by itself authorize work; local licensing and code requirements still apply. The material spans safety and orientation, hand and power tools, blueprint reading and layout, shop fabrication, field installation, HVAC duct systems and airflow, architectural sheet metal and roofing, and codes and professional practice. The NCCER Sheet Metal Worker case studies are 5 cases and about 2,908 words.
1Carbon Monoxide and Confined-Space Conditions in an Occupied Basement
A three-person crew is installing 24-gauge galvanized supply duct in a 14 ft by 22 ft basement mechanical room of an occupied duplex. The room has an atmospherically vented 80,000 Btu/h natural-gas water heater and a condensing furnace; the only opening is a 30 in.
605 words, about 3 min2Field-Verified Offset Transition at a Sprinkler Main
Shop drawings show a 24 in. rectangular supply main at elevation 9 ft 6 in.
688 words, about 3 min3Gauge and Reinforcement Decision for a 48 in. by 24 in. Supply Duct
A shop is fabricating a 48 in. galvanized supply duct for a 20 ft straight run.
534 words, about 3 min4High External Static Pressure on a 3-Ton Residential Split System
A 3-ton residential split system is being commissioned. The design airflow is 1200 cfm at 0.50 in.
544 words, about 3 min5Thermal Movement on a 180 ft Standing-Seam Roof
A 24-gauge steel standing-seam roof is 180 ft long with 12 in. wide panels and no endlaps.
537 words, about 3 min