The blocking layout covers a 54-foot wall run with blocking every 9 feet. How many intervals are counted along the run?
Correct Answer
C) 6 intervals.
54 feet ÷ 9 feet per interval = 6 intervals. Five intervals span 45 feet; eight span 72 feet; 6.75 intervals span 60.75 feet. The question counts intervals, not pieces at their endpoints. The 9-foot spacing is a supplied arithmetic assumption, not a verified framing-code requirement.
Why This Is the Correct Answer
54 feet ÷ 9 feet per interval = 6 intervals. Five intervals span 45 feet; eight span 72 feet; 6.75 intervals span 60.75 feet. The question counts intervals, not pieces at their endpoints. The 9-foot spacing is a supplied arithmetic assumption, not a verified framing-code requirement.
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