Engineering Materials When low carbon steel is heated up to lower critical temperature There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum The grain size increases very rapidly There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum The grain size increases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite. None of these Equal to More than Less than None of these Equal to More than Less than ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. Cementite None of these Both A and B Free graphite Cementite None of these Both A and B Free graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The transistor is made of Silver Gold Germanium Copper Silver Gold Germanium Copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Pearlite consists of 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% carbon and 87% ferrite 13% cementite and 87% ferrite 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% carbon and 87% ferrite 13% cementite and 87% ferrite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following metal shrinks most from molten state to solid state? Cast iron Admiralty metal Cast steel Brass Cast iron Admiralty metal Cast steel Brass ANSWER DOWNLOAD EXAMIANS APP
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