Engineering Materials A small percentage of boron is added to steel in order to Increase wear resistance Increase endurance strength Reduce machinability Increase hardenability Increase wear resistance Increase endurance strength Reduce machinability Increase hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In malleable iron, carbon is present in the form of Free carbon Nodular aggregates of graphite Flakes Cementite Free carbon Nodular aggregates of graphite Flakes Cementite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion. Phosphorus Silicon Sulphur Manganese Phosphorus Silicon Sulphur Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Blast furnace produces following by reduction of iron ore Malleable iron Cast iron Pig iron Wrought iron Malleable iron Cast iron Pig iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to 100°C will Increase Decrease Remain same First increase and then decrease Increase Decrease Remain same First increase and then decrease ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel primarily depends on Percentage of carbon Heat treatment employed Percentage of alloying elements Shape of carbides and their distribution in iron Percentage of carbon Heat treatment employed Percentage of alloying elements Shape of carbides and their distribution in iron ANSWER DOWNLOAD EXAMIANS APP
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