Engineering Materials Ferromagnetic alpha iron exists in temperature range of 910 to 1440°C 770 to 910°C 1400 to 1539°C Below 723°C 910 to 1440°C 770 to 910°C 1400 to 1539°C Below 723°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of copper to aluminium results in Improvement of casting characteristics Improvement of corrosion resistance Improving machinability One of the best known age and precipitation hardening systems Improvement of casting characteristics Improvement of corrosion resistance Improving machinability One of the best known age and precipitation hardening systems ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness and tensile strength in austenitic stainless steel can be increased by Martempering Full annealing Hardening and cold working Normalizing Martempering Full annealing Hardening and cold working Normalizing ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The purpose of heat treatment is to Modify the structure of the material Change grain size Relieve the stresses set up in the material after hot or cold working Any one of these Modify the structure of the material Change grain size Relieve the stresses set up in the material after hot or cold working Any one of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Isotropic materials are those which have the same Thermal properties in all directions Electric and magnetic properties in all directions Elastic properties in all directions Stresses induced in all directions Thermal properties in all directions Electric and magnetic properties in all directions Elastic properties in all directions Stresses induced in all directions ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials German silver contains 2% silver 5% silver 1% silver No silver 2% silver 5% silver 1% silver No silver ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS