Engineering Materials Ferromagnetic alpha iron exists in temperature range of 1400 to 1539°C 910 to 1440°C 770 to 910°C Below 723°C 1400 to 1539°C 910 to 1440°C 770 to 910°C Below 723°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Recrystallization temperature is one 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 first start forming from molten metal when it is cooled At which crystals grow bigger in size 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 first start forming from molten metal when it is cooled At which crystals grow bigger in size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The surface hardness of the following order is achieved by nitriding operation 1000 to 1100 VPN 1500 VPN 250 VPN 600 VPN 1000 to 1100 VPN 1500 VPN 250 VPN 600 VPN ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tensile strength of steel can be safely increased by Adding carbon up to 6.3% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 0.83% Adding carbon up to 6.3% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 0.83% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The property of a material which enables it to retain the deformation permanently, is called Brittleness Plasticity Ductility Malleability Brittleness Plasticity Ductility Malleability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cementite consist of 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% carbon and 87% ferrite 13% cementite and 87% ferrite 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% carbon and 87% ferrite 13% cementite and 87% ferrite ANSWER DOWNLOAD EXAMIANS APP
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