NAFA CAFS /EXAM 2024 WITH 100% ACCURATE SOLUTIONS

What are the 3 types of media used in contaminate control - ANSWER ☑☑Active carbon, chemically treated carbon, potassium permanganate What is residence time? - ANSWER ☑☑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 - ANSWER ☑☑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 - ANSWER ☑☑The fraction of the contaminate that once in contact with the media is removed by either physical or chemical means What is Capacity - ANSWER ☑☑The amount the media is capable of removing - this determines the life of the filter What are two types of filter options - ANSWER ☑☑partial bypass, total retention What is the ASHRAE standard 62.1/62.2 - ANSWER ☑☑Ventilation for acceptable indoor air quality to specif