For the crew-release check at the retail vestibule replacement, a sidewalk cross-slope has a 60 ft run at 1.50% slope. What edge elevation difference is required in inches?
Correct Answer
B) 10.8 in.
Convert run to inches and multiply by the slope percentage expressed as a decimal.
Why This Is the Correct Answer
Convert run to inches and multiply by the slope percentage expressed as a decimal.
Why the Other Options Are Wrong
Option A: 0.9 in.
0.9 in. is below the supported result for sidewalk cross-slope; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 13.5 in.
13.5 in. is above the supported result for sidewalk cross-slope; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 11.5 in.
11.5 in. is above the supported result for sidewalk cross-slope; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Field Engineer takeoff: count the condition before counting the package Tie the cue to Sidewalk Cross-Slope Field Engineer.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Site concrete; cross-slope verification; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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