Engineering Materials When low carbon steel is heated up to lower critical temperature There is no change in grain size The grain size increases very rapidly The grain size first increases and then decreases very rapidly The average grain size is a minimum There is no change in grain size The grain size increases very rapidly The grain size first increases and then decreases very rapidly The average grain size is a minimum ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Quenching is not necessary when hardening is done by Case hardening Flame hardening Nitriding Any one of these Case hardening Flame hardening Nitriding Any one of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Body centered cubic space lattice is found in None of these Gamma iron, aluminium, copper, lead, silver and nickel Zinc, magnesium, cobalt, cadmium, antimony and bismuth Alpha iron, tungsten, chromium and molybdenum None of these Gamma iron, aluminium, copper, lead, silver and nickel Zinc, magnesium, cobalt, cadmium, antimony and bismuth Alpha iron, tungsten, chromium and molybdenum ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The temperature required for full annealing in hypereutectoid steel is 30° C to 50° C above lower critical temperature 30° C to 50° C below lower critical temperature 30° C to 50° C above upper critical temperature 30° C to 50° C below upper critical temperature 30° C to 50° C above lower critical temperature 30° C to 50° C below lower critical temperature 30° C to 50° C above upper critical temperature 30° C to 50° C below upper critical temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Malleability of a material can be defined as Ability to undergo large permanent deformations in tension Ability to undergo large permanent deformations in compression Ability to recover its original form All of these Ability to undergo large permanent deformations in tension Ability to undergo large permanent deformations in compression Ability to recover its original form All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Compressive strength of grey cast iron in tonnes/cm is of the order of 1015 710 35 57 1015 710 35 57 ANSWER DOWNLOAD EXAMIANS APP
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