All ducts shall lead directly to the _______ of the building, so as not to unduly increase any fire hazard.

All ducts shall lead directly to the _______ of the building, so as not to unduly increase any fire hazard.

• A. Attic
• B. Exterior
• C. Interior
• D. Basement

Answer: (B)

Ducts should terminate directly to the exterior of the building to keep any heat, flames, or smoke from building up inside and feeding a fire. When exhaust ends outside, you prevent hot gases from accumulating in enclosed spaces that can ignite or spread fire, such as attics or other interior cavities, and you avoid pushing smoke into living areas. Ending a duct in an attic, interior space, or basement would place the discharge in locations with combustible materials or where smoke and heat could easily travel, increasing the fire hazard. Therefore, routing ducts straight to the outside minimizes fire risk by keeping exhaust away from interior spaces and structural components.

Ducts should terminate directly to the exterior of the building to keep any heat, flames, or smoke from building up inside and feeding a fire. When exhaust ends outside, you prevent hot gases from accumulating in enclosed spaces that can ignite or spread fire, such as attics or other interior cavities, and you avoid pushing smoke into living areas. Ending a duct in an attic, interior space, or basement would place the discharge in locations with combustible materials or where smoke and heat could easily travel, increasing the fire hazard. Therefore, routing ducts straight to the outside minimizes fire risk by keeping exhaust away from interior spaces and structural components.