Which of the following is equivalent to 14 inches of water column for CSST pressure?

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Multiple Choice

Which of the following is equivalent to 14 inches of water column for CSST pressure?

Explanation:
Inches of water column is a pressure unit used for gas piping pressures, and conversions between it and psi are straightforward: 1 psi equals about 27.7 in wc. To be equivalent to 14 in wc, you stay in the same unit, so the exact equivalent is 14 in wc. In psi terms, that’s roughly 0.50 psi. The other options correspond to different values when converted (28 in wc ≈ 1 psi, 7 in wc ≈ 0.25 psi, 1 psi ≈ 27.7 in wc), so they are not the same as 14 in wc.

Inches of water column is a pressure unit used for gas piping pressures, and conversions between it and psi are straightforward: 1 psi equals about 27.7 in wc. To be equivalent to 14 in wc, you stay in the same unit, so the exact equivalent is 14 in wc. In psi terms, that’s roughly 0.50 psi. The other options correspond to different values when converted (28 in wc ≈ 1 psi, 7 in wc ≈ 0.25 psi, 1 psi ≈ 27.7 in wc), so they are not the same as 14 in wc.

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