The walkway panel worksheet starts with an 8.98-cubic-yard concrete takeoff and adds 12 percent waste. What total order quantity results?
Correct Answer
B) 10.06 cubic yards.
Twelve percent waste gives 8.98 x 1.12 = 10.0576, rounded to 10.06 cubic yards.
Why This Is the Correct Answer
Twelve percent waste gives 8.98 x 1.12 = 10.0576, rounded to 10.06 cubic yards.
Why the Other Options Are Wrong
Option A: 9.52 cubic yards.
9.52 cubic yards. is below the supported result for waste factor calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 10.48 cubic yards.
10.48 cubic yards. is above the supported result for waste factor calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 11.98 cubic yards.
11.98 cubic yards. is above the supported result for waste factor calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Adding Concrete takeoff: count the condition before counting the package.
Reference Hint
Study anchor (closed-book): memorize Waste factor calculation from CSLB B General Building Study Guide; California Building Code, Title. / CSLB B General Building Study Guide estimating concepts; know the rule or calculation trigger without relying on exam-room lookup.
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