Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 20 : 10 40 : 30 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 50 : 20 : 20 : 10 40 : 30 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of manganese to aluminium results in Improving machinability Improvement of casting characteristics Improvement of corrosion resistance One of the best known age and precipitation hardening systems Improving machinability Improvement of casting characteristics Improvement of corrosion resistance One of the best known age and precipitation hardening systems ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which reduces the formation of iron sulphide in steel is Chromium Nickel Manganese Vanadium Chromium Nickel Manganese Vanadium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chilled cast iron has No graphite A low percentage of graphite Graphite as its basic constituent of composition A very high percentage of graphite No graphite A low percentage of graphite Graphite as its basic constituent of composition A very high percentage of graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A small percentage of boron is added to steel in order to Increase wear resistance Reduce machinability Increase hardenability Increase endurance strength Increase wear resistance Reduce machinability Increase hardenability Increase endurance strength ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Induction hardening is the process of Heating and cooling rapidly Increasing hardness throughout Hardening surface of work-piece to obtain hard and wear resistant surface Inducing hardness by continuous process Heating and cooling rapidly Increasing hardness throughout Hardening surface of work-piece to obtain hard and wear resistant surface Inducing hardness by continuous process ANSWER DOWNLOAD EXAMIANS APP
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