Gas PipingCâu 99 / 120
A propane appliance with an input of 200,000 Btu/h runs continuously. Using about 91,500 Btu per gallon, about how long will 100 gal of propane last?
a.About 23 hours
b.About 92 hours
c.About 46 hours
d.About 4.6 hours
Giải thích
100 gal holds 9,150,000 Btu, and dividing by 200,000 Btu/h gives about 45.75 hours, or roughly 46 hours. The 23 hour answer doubles the burn rate, the 92 hour answer halves it, and 4.6 hours misplaces a decimal by a factor of ten.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
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