A stair has total rise of 96 inches and will use 12 equal risers. What is each riser height?
Correct Answer
D) 8 inches.
Ninety-six inches divided by 12 risers gives 8 inches per riser.
Why This Is the Correct Answer
Ninety-six inches divided by 12 risers gives 8 inches per riser.
Why the Other Options Are Wrong
Option A: 6 inches.
6 inches. is below the supported result for stair layout calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 7 inches.
7 inches. is below the supported result for stair layout calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 7.5 inches.
7.5 inches. is below the supported result for stair layout calculation; it likely omits allowance, conversion, coverage, or final round-up.
Memory Technique
Stair Layout cart for Checking Math: ninety-six first, controlling second, whole the controlling choice last.
Reference Hint
Study anchor (closed-book): memorize Stair layout calculation from California Residential Code, California Code of Regulations Title 24. / Title 24 California Residential Code stair geometry concepts; know the rule or calculation trigger without relying on exam-room lookup.
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