Openings shall be provided at which locations on the duct, whichever is more accessible, and at changes of direction?

• A. Front and back
• B. Sides, or the Top
• C. Bottom and Top
• D. Sides and Bottom

Answer: (B)

Access to the interior of grease ducts for cleaning and inspection is the main idea here. Openings must be placed where cleaning crews can reach the inside easily, and also at each change of direction so grease buildup in bends can be reached and removed.

Choosing the sides or the top makes the openings easy to access with standard ladders or cleaning tools, which helps ensure thorough cleaning and inspection. Front, back, or bottom locations tend to be awkward or harder to reach, and a bottom opening can complicate drainage and cleaning from below.

So, openings on the sides or the top provide the best, most practical access, and openings are also required at changes of direction to address grease buildup where it’s most likely.