Engineering Materials In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled Any one of these Slowly in the furnace Suddenly in a suitable cooling medium In still air Any one of these Slowly in the furnace Suddenly in a suitable cooling medium In still air ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The property of a material due to which it breaks with little permanent distortion, is called Malleability Plasticity Ductility Brittleness Malleability Plasticity Ductility Brittleness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to lower critical temperature There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum The grain size increases very rapidly There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum The grain size increases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium when added to steel _________ the tensile strength. Decreases None of these Does not effect Increases Decreases None of these Does not effect Increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite. None of these Less than More than Equal to None of these Less than More than Equal to ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The addition of which of the following improves machining of copper? Zinc Vanadium Tin Sulphur Zinc Vanadium Tin Sulphur ANSWER DOWNLOAD EXAMIANS APP
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