Engineering Materials Carbon steel is An alloy of iron and carbon with varying quantities of phosphorus and sulphur Refined from cast iron Extensively used for making cutting tools Made by adding carbon in steel An alloy of iron and carbon with varying quantities of phosphorus and sulphur Refined from cast iron Extensively used for making cutting tools Made by adding carbon in steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in grey iron castings usually varies between 5 to 7% 2.5 to 4.5% 0.012 0.5 to 1% 5 to 7% 2.5 to 4.5% 0.012 0.5 to 1% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to upper critical temperature The grain size increases very rapidly The average grain size is a minimum There is no change in grain size The grain size first increases and then decreases very rapidly The grain size increases very rapidly The average grain size is a minimum There is no change in grain size The grain size first increases and then decreases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The presence of sulphur in pig iron makes It brittle It easily machinable It hard The casting unsound It brittle It easily machinable It hard The casting unsound ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ball bearings are, usually, made from Low carbon steel Medium carbon steel High carbon steel Chrome steel Low carbon steel Medium carbon steel High carbon steel Chrome steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Perminvar alloy having constant permeability is an alloy of Copper, nickel and antimony Nickel, copper and zinc Iron, zinc and bismuth Nickel, copper and iron Copper, nickel and antimony Nickel, copper and zinc Iron, zinc and bismuth Nickel, copper and iron ANSWER DOWNLOAD EXAMIANS APP
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