Engineering Materials When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of Ferrite and pearlite Pearlite and cementite Mainly ferrite Mainly pearlite Ferrite and pearlite Pearlite and cementite Mainly ferrite Mainly pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in grey iron castings usually varies between 0.5 to 1% 5 to 7% 2.5 to 4.5% 0.012 0.5 to 1% 5 to 7% 2.5 to 4.5% 0.012 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hematite iron ore contains iron about 0.7 0.55 0.3 0.45 0.7 0.55 0.3 0.45 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Nodular cast iron is produced by adding ________ to the molten cast iron. Nickel Copper Magnesium Chromium Nickel Copper Magnesium Chromium 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 Atomic packing factor Coordination number None of these Space lattice Atomic packing factor Coordination number None of these Space lattice ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about tempering? Tempering is done to Improve machinability Improve toughness Release stresses Improve ductility Improve machinability Improve toughness Release stresses Improve ductility ANSWER DOWNLOAD EXAMIANS APP
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