Engineering Materials Machining properties of steel are improved by adding Chromium, nickel Sulphur, lead, phosphorous Vanadium, aluminium Silicon, aluminium, titanium Chromium, nickel Sulphur, lead, phosphorous Vanadium, aluminium Silicon, aluminium, titanium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to lower critical temperature The average grain size is a minimum The grain size first increases and then decreases very rapidly The grain size increases very rapidly There is no change in grain size The average grain size is a minimum The grain size first increases and then decreases very rapidly The grain size increases very rapidly There is no change in grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Isotropic materials are those which have the same Stresses induced in all directions Electric and magnetic properties in all directions Elastic properties in all directions Thermal properties in all directions Stresses induced in all directions Electric and magnetic properties in all directions Elastic properties in all directions Thermal properties in all directions ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio 2.9375 2.1180555555556 40 : 60 30 : 70 2.9375 2.1180555555556 40 : 60 30 : 70 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statements are true for annealing of steels? Steels are heated to 500 to 700°C All of these Internal stresses are relieved Cooling is done slowly and steadily Steels are heated to 500 to 700°C All of these Internal stresses are relieved Cooling is done slowly and steadily ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical temperature Decreases as the carbon content in steel increases Is same for all steels Depends upon the rate of heating Increases as the carbon content in steel increases Decreases as the carbon content in steel increases Is same for all steels Depends upon the rate of heating Increases as the carbon content in steel increases ANSWER DOWNLOAD EXAMIANS APP
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