NV C-37 Solar Practice Questions - Nevada C-37 Solar Contractor Examination Exam

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A 3/4 inch Type L header is to stay near 4 fps (about 6 gpm). At 0.020 gpm/ft², how many 4×8 (32 ft²) glazed collectors can that header serve in parallel before flow pushes the header out of the 2–5 fps band?

One collector only About nine collectors (288 ft², 5.8 gpm) About forty collectors (1,280 ft², 25.6 gpm) Unlimited; header size does not matter

Correct Answer:

About nine collectors (288 ft², 5.8 gpm)

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