Question 3435 Deck General

The correct answer is D) horizontal surfaces. When the air temperature is just below 32°F, snow first adheres to horizontal surfaces because the cooler horizontal surfaces allow the snow to accumulate and stick more easily compared to vertical, leeward, or surfaces near the waterline. This is due to the slower rate of heat transfer from horizontal surfaces, which allows the snow to remain in place and build up. The other options are incorrect because the snow is less likely to adhere to these surfaces due to factors such as increased air circulation (vertical and leeward surfaces) or the influence of the nearby water temperature (surfaces near the waterline).