Engineering Materials When low carbon steel is heated up to lower critical temperature There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum The grain size increases very rapidly There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum The grain size increases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Silicon when added to copper improves Strength and ductility Hardness Hardness and strength Machinability Strength and ductility Hardness Hardness and strength Machinability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following display properties similar to that of steel? None of these Both (A) and (B) Blackheart cast iron Whiteheart cast iron None of these Both (A) and (B) Blackheart cast iron Whiteheart cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in high speed steel provides Sharp cutting edge Wear resistance Hot hardness Toughness Sharp cutting edge Wear resistance Hot hardness Toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Age-hardening is related with Gun metal Stainless steel Duralumin German silver Gun metal Stainless steel Duralumin German silver ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following elements does not impart hardness to steel? Copper Silicon Nickel Chromium Copper Silicon Nickel Chromium ANSWER DOWNLOAD EXAMIANS APP
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