A pad grade must drop 1.5 percent over 80 feet. What fall is required?
Correct Answer
D) 1.2 feet.
One and one-half percent of 80 feet is 1.2 feet of fall.
Why This Is the Correct Answer
One and one-half percent of 80 feet is 1.2 feet of fall.
Why the Other Options Are Wrong
Option A: 0.8 feet.
0.8 feet. is below the supported result for earthwork grading calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 1.0 feet.
1.0 feet. is below the supported result for earthwork grading calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 1.1 feet.
1.1 feet. is below the supported result for earthwork grading calculation; it likely omits allowance, conversion, coverage, or final round-up.
Memory Technique
Checking Rough takeoff: count the condition before counting the package.
Reference Hint
Study anchor (closed-book): memorize Earthwork grading calculation from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code site drainage and grading concepts; know the rule or calculation trigger without relying on exam-room lookup.
More Class B Trade Questions
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