Engineering Materials The addition of which of the following improves machining of copper? Sulphur Zinc Tin Vanadium Sulphur Zinc Tin Vanadium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty gun metal contains Iron scrap and zinc Alloy of tin, lead and cadmium 88% copper, 10% tin and rest zinc 63 to 67% nickel and 30% copper Iron scrap and zinc Alloy of tin, lead and cadmium 88% copper, 10% tin and rest zinc 63 to 67% nickel and 30% copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Recrystallization temperature is one At which crystals first start forming from molten metal when it is cooled At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated At which change of allotropic form takes place At which crystals grow bigger in size At which crystals first start forming from molten metal when it is cooled At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated At which change of allotropic form takes place At which crystals grow bigger in size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Lowers the toughness and transverse ductility Acts as deoxidiser Reduces the grain size Decreases tensile strength and hardness Lowers the toughness and transverse ductility Acts as deoxidiser Reduces the grain size Decreases tensile strength and hardness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following element results in presence of free graphite in C.I.? Carbon Manganese Sulphur Silicon Carbon Manganese Sulphur Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The surface hardness of the following order is achieved by nitriding operation 1500 VPN 1000 to 1100 VPN 250 VPN 600 VPN 1500 VPN 1000 to 1100 VPN 250 VPN 600 VPN ANSWER DOWNLOAD EXAMIANS APP
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