NAFA CAFS Exam | Actual Exam Questions | 100% Correct Answers | Verified 2024 Version

What are the 3 types of media used in contaminate control - Active carbon, chemically treated carbon, potassium permanganate What is residence time? - the time it takes air to cross a distance equal to the thickness of the filter without accounting for the resistance of the media through which it travels What are the variations of the contamination control principle - clean the air required by the process, blanket the product with cleaned air, offer enough air flow to move contaminated air away from the product What is removal efficiency - The fraction of the contaminate that once in contact with the media is removed by either physical or chemical means What is Capacity - The amount the media is capable of removing - this determines the life of the filter What are two types of filter options - partial bypass, total retention