Engineering Materials The addition of which of the following improves machining of copper? Vanadium Zinc Tin Sulphur Vanadium Zinc Tin Sulphur ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness is the property of a material due to which it Can be drawn into wires Can be rolled or hammered into thin sheets Can cut another metal Breaks with little permanent distortion Can be drawn into wires Can be rolled or hammered into thin sheets Can cut another metal Breaks with little permanent distortion ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has maximum ductility? Aluminium Mild steel Nickel Copper Aluminium Mild steel Nickel Copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ferromagnetic alpha iron exists in temperature range of 1400 to 1539°C 770 to 910°C Below 723°C 910 to 1440°C 1400 to 1539°C 770 to 910°C Below 723°C 910 to 1440°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The material in which the atoms are arranged chaotically, is called Amorphous material Mesomorphous material Crystalline material None of these Amorphous material Mesomorphous material Crystalline material None of these ANSWER DOWNLOAD EXAMIANS APP
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