Engineering Materials Delta iron occurs at temperature of Between 910°C and 1400°C Room temperature Between 1400°C and 1539°C Above melting point Between 910°C and 1400°C Room temperature Between 1400°C and 1539°C Above melting point 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 property is desirable in parts subjected to shock and impact loads? Strength Toughness Brittleness Stiffness Strength Toughness Brittleness Stiffness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Points of arrest for iron correspond to Stages at which further heating does not increase temperature for some time Stages at which allotropic forms change There is nothing like points of arrest Stages at which properties do not change with increase in temperature Stages at which further heating does not increase temperature for some time Stages at which allotropic forms change There is nothing like points of arrest Stages at which properties do not change with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel increases if it contains Pearlite Austenite Cementite Martensite Pearlite Austenite Cementite Martensite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Depth of hardness of steel is increased by addition of Chromium Nickel Tungsten Vanadium Chromium Nickel Tungsten Vanadium ANSWER DOWNLOAD EXAMIANS APP
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