Engineering Materials Points of arrest for iron correspond to Stages at which allotropic forms change There is nothing like points of arrest Stages at which further heating does not increase temperature for some time Stages at which properties do not change with increase in temperature Stages at which allotropic forms change There is nothing like points of arrest Stages at which further heating does not increase temperature for some time Stages at which properties do not change with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to 100°C will Increase First increase and then decrease Remain same Decrease Increase First increase and then decrease Remain same Decrease ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In a hardening process, the hypo-eutectoid steel is Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The cupola is used to manufacture Pig iron Cast iron Steel Wrought iron Pig iron Cast iron Steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Wrought iron Is a ductile material Can be easily forged or welded All of these Cannot stand sudden and excessive shocks Is a ductile material Can be easily forged or welded All of these Cannot stand sudden and excessive shocks ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following constituents of steels is softest and least strong? Cementite Pearlite Ferrite Austenite Cementite Pearlite Ferrite Austenite ANSWER DOWNLOAD EXAMIANS APP
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