Engineering Materials Which of the following display properties similar to that of steel? Blackheart cast iron Whiteheart cast iron None of these Both (A) and (B) Blackheart cast iron Whiteheart cast iron None of these Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about normalizing? Normalizing is done to Refine grain structure Induce stresses Improve mechanical properties Reduce segregation in casting Refine grain structure Induce stresses Improve mechanical properties Reduce segregation in casting ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The presence of sulphur in pig iron makes It easily machinable It hard The casting unsound It brittle It easily machinable It hard The casting unsound It brittle ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 10 : 20 40 : 30 : 20 : 10 50 : 20 : 20 : 10 30 : 20 : 30 : 20 50 : 20 : 10 : 20 40 : 30 : 20 : 10 50 : 20 : 20 : 10 30 : 20 : 30 : 20 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel increases if it contains Martensite Austenite Pearlite Cementite Martensite Austenite Pearlite Cementite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Delta iron occurs at temperature of Room temperature Above melting point Between 1400°C and 1539°C Between 910°C and 1400°C Room temperature Above melting point Between 1400°C and 1539°C Between 910°C and 1400°C ANSWER DOWNLOAD EXAMIANS APP
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