Engineering Materials The surface hardness of the following order is achieved by nitriding operation 600 VPN 250 VPN 1000 to 1100 VPN 1500 VPN 600 VPN 250 VPN 1000 to 1100 VPN 1500 VPN 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 30 : 20 : 30 : 20 40 : 30 : 20 : 10 50 : 20 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 40 : 30 : 20 : 10 50 : 20 : 20 : 10 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten when added to steel __________ the critical temperature. Raises Does not effect None of these Lowers Raises Does not effect None of these Lowers ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Solder is an alloy consisting of Tin and lead Tin, antimony, copper Lead and zinc Tin and copper Tin and lead Tin, antimony, copper Lead and zinc Tin and copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In the lower part of the blast furnace (zone of fusion), the temperature is 400° to 700°C 800°C to 1000°C 1200°C to 1300°C 1500°C to 1700°C 400° to 700°C 800°C to 1000°C 1200°C to 1300°C 1500°C to 1700°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
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