During the material-order review at the industrial mezzanine landing, the insulation plates scope includes 168 roof insulation boards, with 5 fasteners per item. Boxes contain 500 fasteners. How many boxes are needed?
Correct Answer
A) 2 boxes
Fastener boxes equal item count times fasteners per item divided by fasteners per box, rounded up.
Why This Is the Correct Answer
Fastener boxes equal item count times fasteners per item divided by fasteners per box, rounded up.
Why the Other Options Are Wrong
Option B: 1 box
1 box is below the supported result for insulation plates; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 9 boxes
9 boxes is above the supported result for insulation plates; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 4 boxes
4 boxes is above the supported result for insulation plates; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Insulation Plates cart for Field Engineer: fastener first, controlling second, whole units last.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Roofing fastening; plate box estimating; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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