In a Brinell hardness test the hardness number is determined by the measurement of Production Engineering Mcqs July 25, 2019 BILAL KHATTAK0 A.Width of depression B.Depth of depression C.Diameter of depression D.Surface area of depression E.None of the above Related Mcqs: In Rockwell hardness test the hardness is measured by In Brinell hardness testing the minimum thickness of the specimen should be In case of very hard surfaces the Brinell Hardness test method fails to give reliable results because In Brinell hardness tests if a soft ball is used for indentation In Brinell hardness testing, while determining hardness of aluminium Brinell and Vickers hardness values are practically identical upto a hardness of In Brinell hardness testing the time of loading is In Brinell hardness tester the load for aluminium is In Brinell hardness testing the timer for loading is Brinell hardness of nitrided surface may be of the order of