Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 10 : 20 50 : 20 : 20 : 10 40 : 30 : 20 : 10 30 : 20 : 30 : 20 50 : 20 : 10 : 20 50 : 20 : 20 : 10 40 : 30 : 20 : 10 30 : 20 : 30 : 20 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Eutectoid steel contains following percentage of carbon 0.0063 0.008 0.003 0.0002 0.0063 0.008 0.003 0.0002 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 An eutectoid steel consists of Pearlite and cementite Wholly austenite Pearlite and ferrite Wholly pearlite Pearlite and cementite Wholly austenite Pearlite and ferrite Wholly pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bronze contains 85 - 92% copper and rest tin with little lead and nickel 70 - 75% copper and rest tin 70% copper and 30% zinc 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel 70 - 75% copper and rest tin 70% copper and 30% zinc 90% copper and 10% tin ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Perminvar alloy having constant permeability is an alloy of Copper, nickel and antimony Nickel, copper and iron Iron, zinc and bismuth Nickel, copper and zinc Copper, nickel and antimony Nickel, copper and iron Iron, zinc and bismuth Nickel, copper and zinc ANSWER DOWNLOAD EXAMIANS APP
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