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Which type of filter used in engine is made up of cloth, felt and glass wool?(a) Dry-type(b) Oil-bath type(c) Soot blower(d) Bessel filterI have been asked this question in an online quiz.My doubt stems from Lubrication System, Intake and Exhaust Systems in chapter Diesel Engine Plant of Energy Engineering

Answer»

Right option is (a) Dry-TYPE

For explanation: Dry type of filter is made up of cloth, felt and glass WOOL etc. the filters catch dirt by CAUSING it to cling to the surface of filter material. The CAPACITY of such filters drops progressively when they are in use. The cleaning is DONE by amount of air used by the engines and dust concentrate in it.



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