Đường ống gaCâu 250 / 360
Two runs leave the meter: Run A is 55 feet to the farthest outlet; Run B is 30 feet. Using the longest-length method, which length column governs sizing of the entire system?
a.The 55-foot column
b.The 30-foot column
c.The average, 42.5 feet
d.The sum, 85 feet
Giải thích
The longest-length method uses the single longest developed run from the source to the most remote outlet, here 55 feet, to select the length column for the whole system. Each section is then sized from that column by its own cfh demand. You do not average or add the runs together.
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