Core TradesCâu 215 / 700
A sewer line drops 2.5 feet in elevation over a horizontal length of 250 feet. What is the slope expressed as a percentage?
a.1 percent
b.2.5 percent
c.10 percent
d.25 percent
Giải thích
Slope percentage = (rise or drop / run) x 100 = (2.5 / 250) x 100 = 1 percent. 2.5 percent ignores the 250-ft run, 10 percent misplaces a decimal, and 25 percent divides incorrectly.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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