Hamad Engineering Materials 13/05/2021 A. below 0.5% B. below 1% C. above 1% D. above 2.2% E. nil Related Mcqs: Annealing of white cast iron results in production of_________________?A. malleable iron B. nodular iron C. spheroidal iron D. grey iron E. none of the above... Hardness of martensite is about___________________?A. RC 65 B. RC 48 C. RC 57 D. RC 80 E. RC 32... The most effective inhibitor of grain growth, when added in small quantities is__________________?A. carbon B. vanadium C. manganese D. cobalt E. copper... The presence of sulphur in pig iron makes__________________?A. it easily machinable B. it brittle C. it hard D. the casting unsound E. increases the fluidity... Dow metal contains____________________?A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe B. 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg C. 90% aluminium and 90% copper D. 90% magnesium and 9% aluminium with some copper E. 90% magnesium and 10% tin...
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