Core TradesCâu 68 / 700
CALCULATION: A continuous footing is 60 feet long, 20 inches wide, and 12 inches deep. Approximately how many cubic yards of concrete does it require?
a.About 2.5 cubic yards
b.About 3.1 cubic yards
c.About 3.7 cubic yards
d.About 4.4 cubic yards
Giải thích
Convert to feet: 20 in = 1.667 ft, 12 in = 1.0 ft. Volume = 60 x 1.667 x 1.0 = 100 cubic feet. 100 / 27 = 3.7 cubic yards. The other choices result from using wrong width or depth conversions.
Trích dẫn luật: 2025 CA Building Code, Chapter 19 (Concrete)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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