Internal hood joints, seams, filter support frames, and appurtenances attached inside the hood shall be sealed or otherwise made greasetight.

Internal hood joints, seams, filter support frames, and appurtenances attached inside the hood shall be sealed or otherwise made greasetight.

• A. Sealed
• B. Greasetight
• C. Sealed and greasetight
• D. Sealed or otherwise made greasetight

Answer: (D)

Internal hood areas can fuel a grease fire if grease can seep into joints or frames, so those parts must be kept grease-tight. The requirement allows either sealing the joints or using other accepted methods that achieve the same grease-tight condition. That flexibility is why the correct phrasing is “sealed or otherwise made greasetight.” It covers both sealing the joints and any other approved technique that stops grease from escaping into the hood or ductwork. Saying they must be sealed and greasetight together would be overly strict, and requiring both at once isn’t necessary. Similarly, requiring grease-tightness without allowing sealing isn’t correct, since sealing is a common way to achieve it.

Internal hood areas can fuel a grease fire if grease can seep into joints or frames, so those parts must be kept grease-tight. The requirement allows either sealing the joints or using other accepted methods that achieve the same grease-tight condition. That flexibility is why the correct phrasing is “sealed or otherwise made greasetight.” It covers both sealing the joints and any other approved technique that stops grease from escaping into the hood or ductwork. Saying they must be sealed and greasetight together would be overly strict, and requiring both at once isn’t necessary. Similarly, requiring grease-tightness without allowing sealing isn’t correct, since sealing is a common way to achieve it.