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______ apparatus is used in the determination of Flash and Fire point of a lubricating oil.(a) saybolt(b) engler(c) able’s(d) redwoodThis question was addressed to me by my college professor while I was bunking the class.Enquiry is from Testing of Lubricants topic in chapter Lubrication and Lubricants of Automotive Engine Design

Answer»

Right option is (c) able’s

To explain I WOULD say: FLASHPOINT is the minimum temperature at which it gives vapor which is sufficient to FORM an explosive mixture with air. The fire point is the further heating to a stage where it STARTS to burn continuously on applying flame to it. Both are determined by Abel’s apparatus.



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