Rhode Island Journeyman Plumber Practice Exam

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How far should a vent extruding out the side of a building be from doors and windows?

90 degrees
100 degrees
110 degrees
120 degrees

The correct answer is: 110 degrees

The correct distance for a vent to be situated from doors and windows is determined to ensure proper ventilation while preventing the potential for harmful gases accumulating near these openings. The guidelines generally state that a vent should be at least 10 feet away from any doors or windows, which translates to a positioning angle around 110 degrees. This angle helps to ensure that any gases vented out do not re-enter the building through openings and reduces the risk of back drafting which can occur if gases are allowed to flow back into the structure. Such regulations are part of building codes aimed at ensuring safety and protecting indoor air quality. The choice of 110 degrees reflects a balance between effective venting and safeguarding against any safety hazards associated with gas buildup near entry points into the home or building.