California C-43 Sheet Metal
California CSLB C-43 Sheet Metal Examination
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Exam overviewPractice session
Calculate the Bend Allowance (BA) for a 90-degree bend in 20-gauge steel sheet (thickness T = 0.036 in) using an inside radius R = 0.125 in and neutral axis K-factor of 0.40. Formula: BA = 1.5708 x (R + K x T).
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