Which material is used as a cleaning element in a light-duty type air cleaner?(a) Plastic(b) Metal(c) Cellulose(d) Both Plastic and metalThis question was posed to me in an online quiz.This key question is from Petrol Engine Fuel Supply System in chapter Petrol Engine Fuel Supply System of Automotive Engine Design

Which material is used as a cleaning element in a light-duty type air

1.	Which material is used as a cleaning element in a light-duty type air cleaner?(a) Plastic(b) Metal(c) Cellulose(d) Both Plastic and metalThis question was posed to me in an online quiz.This key question is from Petrol Engine Fuel Supply System in chapter Petrol Engine Fuel Supply System of Automotive Engine Design
Answer» The correct answer is (c) Cellulose For explanation: The cleaning ELEMENT consists of a cylindrical cellulose fiber material, over which is PUT a fine mesh SCREEN to provide strength. The element is corrugated to increase the surface AREA exposed to the INCOMING air.

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