Question

What is the resistance to flow in the range of bar offered by a new filter element?

(a) 0-0.1

(b) 0.1-0.3

(c) 0.3-0.5

(d) 0.5-0.7

The question was posed to me by my college director while I was bunking the class.

Asked question is from Lubrication and Lubricants topic in section Lubrication and Lubricants of Automotive Engine Design

Answer 1

Right choice is (c) 0.3-0.5

The best I can explain: The resistance to flow offered by a new filter element is about 0.3-0.5 bar. However, with the use, the resistance increases due to clogging of the filter element as the time passes by due to accumulation of dirt and other impurities.