Engineering Materials The heat treatment process used for softening hardened steel is Normalizing Annealing Tempering Carburising Normalizing Annealing Tempering Carburising ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about properties of aluminium? Wear resistance is very good Creep strength limits its use to fairly low temperatures Modulus of elasticity is fairly low Fatigue strength is not high Wear resistance is very good Creep strength limits its use to fairly low temperatures Modulus of elasticity is fairly low Fatigue strength is not high ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is Cobalt Chromium Vanadium Nickel Cobalt Chromium Vanadium Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of lead and bismuth to aluminium results in Improvement of casting characteristics One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance Improvement of casting characteristics One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical temperature Depends upon the rate of heating Decreases as the carbon content in steel increases Increases as the carbon content in steel increases Is same for all steels Depends upon the rate of heating Decreases as the carbon content in steel increases Increases as the carbon content in steel increases Is same for all steels ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statements are true for annealing of steels? Internal stresses are relieved All of these Cooling is done slowly and steadily Steels are heated to 500 to 700°C Internal stresses are relieved All of these Cooling is done slowly and steadily Steels are heated to 500 to 700°C ANSWER DOWNLOAD EXAMIANS APP
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