Engineering Materials The percentage of carbon in grey iron castings usually varies between 2.5 to 4.5% 5 to 7% 0.5 to 1% 0.012 2.5 to 4.5% 5 to 7% 0.5 to 1% 0.012 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cast iron is characterized by minimum of following percentage of carbon 0.013 0.02 0.002 0.008 0.013 0.02 0.002 0.008 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following represents the allotropic forms of iron? Alpha iron and beta iron Alpha iron, gamma from and delta iron Alpha iron, beta iron and gamma iron Body centered cubic iron and face centered cubic iron Alpha iron and beta iron Alpha iron, gamma from and delta iron Alpha iron, beta iron and gamma iron Body centered cubic iron and face centered cubic iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of Pearlite and cementite Mainly ferrite Mainly pearlite Ferrite and pearlite Pearlite and cementite Mainly ferrite Mainly pearlite Ferrite and pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to lower critical temperature The grain size increases very rapidly The average grain size is a minimum The grain size first increases and then decreases very rapidly There is no change in grain size The grain size increases very rapidly The average grain size is a minimum The grain size first increases and then decreases very rapidly There is no change in grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is Cobalt Nickel Vanadium Chromium Cobalt Nickel Vanadium Chromium ANSWER DOWNLOAD EXAMIANS APP
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