Engineering Materials Sulphur in cast iron Makes the iron soft and easily machinable Make the iron white and hard Increases hardness and brittleness Aids fusibility and fluidity Makes the iron soft and easily machinable Make the iron white and hard Increases hardness and brittleness Aids fusibility and fluidity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Pick up wrong statement about wrought iron It contains carbon of the order of 0 to 0.25% It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It melts at 1535°C It is very soft and ductile It contains carbon of the order of 0 to 0.25% It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It melts at 1535°C It is very soft and ductile ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty gun metal contains Alloy of tin, lead and cadmium Iron scrap and zinc 63 to 67% nickel and 30% copper 88% copper, 10% tin and rest zinc Alloy of tin, lead and cadmium Iron scrap and zinc 63 to 67% nickel and 30% copper 88% copper, 10% tin and rest zinc ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The surface hardness of the following order is achieved by nitriding operation 1500 VPN 250 VPN 1000 to 1100 VPN 600 VPN 1500 VPN 250 VPN 1000 to 1100 VPN 600 VPN ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ferromagnetic alpha iron exists in temperature range of Below 723°C 770 to 910°C 910 to 1440°C 1400 to 1539°C Below 723°C 770 to 910°C 910 to 1440°C 1400 to 1539°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel primarily depends on Percentage of carbon Shape of carbides and their distribution in iron Heat treatment employed Percentage of alloying elements Percentage of carbon Shape of carbides and their distribution in iron Heat treatment employed Percentage of alloying elements ANSWER DOWNLOAD EXAMIANS APP
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