Engineering Materials Which of the following material has nearly zero coefficient of expansion? Invar High speed steel Heat resisting steel Stainless steel Invar High speed steel Heat resisting steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ratio of the volume occupied by the atoms to the total volume of the unit cell is called Coordination number Atomic packing factor None of these Space lattice Coordination number Atomic packing factor None of these Space lattice ANSWER DOWNLOAD EXAMIANS APP
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 In still air Slowly in the furnace Suddenly in a suitable cooling medium Any one of these In still air Slowly in the furnace Suddenly in a suitable cooling medium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Blast furnace produces following by reduction of iron ore Malleable iron Wrought iron Cast iron Pig iron Malleable iron Wrought iron Cast iron Pig iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ferromagnetic alpha iron exists in temperature range of 770 to 910°C Below 723°C 910 to 1440°C 1400 to 1539°C 770 to 910°C Below 723°C 910 to 1440°C 1400 to 1539°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Dye penetrant method is generally used to locate Core defects Surface defects Temporary defects Superficial defects Core defects Surface defects Temporary defects Superficial defects ANSWER DOWNLOAD EXAMIANS APP
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