Engineering Materials Which of the following property is desirable in parts subjected to shock and impact loads? Strength Brittleness Stiffness Toughness Strength Brittleness Stiffness Toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following impurity in cast iron makes it hard and brittle? Manganese Sulphur Silicon Phosphorus Manganese Sulphur Silicon Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to lower critical temperature The average grain size is a minimum There is no change in grain size The grain size first increases and then decreases very rapidly The grain size increases very rapidly The average grain size is a minimum There is no change in grain size The grain size first increases and then decreases very rapidly The grain size increases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hardness of lower bainite (tempered martensite) is about RC 48 RC 65 RC 80 RC 57 RC 48 RC 65 RC 80 RC 57 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 10 : 20 40 : 30 : 20 : 10 30 : 20 : 30 : 20 50 : 20 : 20 : 10 50 : 20 : 10 : 20 40 : 30 : 20 : 10 30 : 20 : 30 : 20 50 : 20 : 20 : 10 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A small percentage of boron is added to steel in order to Reduce machinability Increase hardenability Increase endurance strength Increase wear resistance Reduce machinability Increase hardenability Increase endurance strength Increase wear resistance ANSWER DOWNLOAD EXAMIANS APP
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