250 Pascals convert to how many inches of water gauge?

To determine how many inches of water gauge correspond to 250 Pascals, we need to understand the relationship between Pascals and inches of water column (in. wg). The conversion factor between these two units is well established in fluid mechanics.

1 Pascal is equivalent to approximately 0.00401665 inches of water gauge. Therefore, to convert 250 Pascals to inches of water column, you can multiply 250 by this conversion factor:

250 Pa × 0.00401665 in. wg/Pa = 1.0041625 in. wg.

When rounding this value, we see that it approximates closely to 1 inch. Therefore, the correct answer reflects this calculation. Understanding this conversion is crucial in contexts such as HVAC and building performance evaluations, where pressure measurements are often represented in various units.

Knowing the correct conversion allows raters to interpret and report data accurately during energy assessments.