Engineering Materials When low carbon steel is heated up to upper critical temperature 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 There is no change in grain size The grain size first increases and then decreases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Depth of hardness of steel is increased by addition of Nickel Tungsten Chromium Vanadium Nickel Tungsten Chromium Vanadium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following pipes is least corrosion resistant? Cast iron Brass Wrought iron Mild steel Cast iron Brass Wrought iron Mild steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Eutectoid reaction occurs at 723°C 1147°C 1493°C 600°C 723°C 1147°C 1493°C 600°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following display properties similar to that of steel? None of these Blackheart cast iron Both (A) and (B) Whiteheart cast iron None of these Blackheart cast iron Both (A) and (B) Whiteheart cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hardness of lower bainite (tempered martensite) is about RC 48 RC 57 RC 65 RC 80 RC 48 RC 57 RC 65 RC 80 ANSWER DOWNLOAD EXAMIANS APP
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