While preparing the buyout verification pass for the middle-school kitchen line, the slab edge requires 192 LF of thickened-edge forms at 3.0 ft high on 1 side. What contact area is required?
Correct Answer
D) 576 SF
Form contact area equals length times height times the number of formed sides.
Why This Is the Correct Answer
Form contact area equals length times height times the number of formed sides.
Why the Other Options Are Wrong
Option A: 192 SF
192 SF is below the supported result for thickened-edge forms; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 720 SF
720 SF is above the supported result for thickened-edge forms; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option C: 577 SF
577 SF is above the supported result for thickened-edge forms; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to form, adjust for contact, then let Concrete Foreman set the finish line.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Concrete slab forming; edge form area; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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