Engineering Materials When low carbon steel is heated up to upper critical temperature The grain size first increases and then decreases very rapidly There is no change in grain size The average grain size is a minimum The grain size increases very rapidly The grain size first increases and then decreases very rapidly There is no change in grain size The average grain size is a minimum The grain size increases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ball bearings are, usually, made from Chrome steel Medium carbon steel Low carbon steel High carbon steel Chrome steel Medium carbon steel Low carbon steel High carbon steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is the false statement about wrought iron? It has High ductility High resistance to rusting and corrosion Uniform strength in all directions Ability of hold protective coating High ductility High resistance to rusting and corrosion Uniform strength in all directions Ability of hold protective coating ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Preheating is essential in welding High speed steel Cast iron All of these All nonferrous materials High speed steel Cast iron All of these All nonferrous materials ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage carbon content in wrought iron is about 0.02 2 0.4 0.1 0.02 2 0.4 0.1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of steel is improved by adding Sulphur, lead and phosphorus Nickel and chromium Nickel Chromium Sulphur, lead and phosphorus Nickel and chromium Nickel Chromium ANSWER DOWNLOAD EXAMIANS APP
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