Materials and Construction Pure nickel is Having h.c.p. crystal lattice Ferromagnetic at room temperature Ferromagnetic above its curie point (i.e., 415°C) Not resistant to oxidation at high temperature Having h.c.p. crystal lattice Ferromagnetic at room temperature Ferromagnetic above its curie point (i.e., 415°C) Not resistant to oxidation at high temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain Decreases in proportion to stress Decreases very quickly Increases in proportion to stress Increases very quickly Decreases in proportion to stress Decreases very quickly Increases in proportion to stress Increases very quickly ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the most prone to atmospheric corrosion? Iron Tin Copper Silver Iron Tin Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The electrical conductivity of a __________ decreases with rise in temperature. Metal/alloy Semi-conductor None of these Dielectric Metal/alloy Semi-conductor None of these Dielectric ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following heat treatment processes is used for softening the hardened material? Normalising Tempering Annealing None of these Normalising Tempering Annealing None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Softening of hardned steel is done by its Annealing Tempering Carburising Normalising Annealing Tempering Carburising Normalising ANSWER DOWNLOAD EXAMIANS APP
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