Engineering Materials Addition of lead and bismuth to aluminium results in 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 Improving machinability Improvement of casting characteristics ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of aluminium increases when _________ is added to aluminium. Silicon Lead and bismuth Copper Magnesium Silicon Lead and bismuth Copper Magnesium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage carbon content in wrought iron is about 0.02 0.4 2 0.1 0.02 0.4 2 0.1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The surface hardness of the following order is achieved by nitriding operation 600 VPN 1500 VPN 1000 to 1100 VPN 250 VPN 600 VPN 1500 VPN 1000 to 1100 VPN 250 VPN ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The aluminium alloy, mainly used, for anodized utensil manufacture, is Hindalium Y-alloy Duralumin Magnalium Hindalium Y-alloy Duralumin Magnalium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following constituents of steels is softest and least strong? Cementite Austenite Ferrite Pearlite Cementite Austenite Ferrite Pearlite ANSWER DOWNLOAD EXAMIANS APP
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