Engineering Materials Nodular cast iron is produced by adding ________ to the molten cast iron. Copper Nickel Magnesium Chromium Copper Nickel Magnesium Chromium 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. Less than More than Equal to None of these Less than More than Equal to None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to upper critical temperature There is no change in grain size The grain size increases very rapidly The grain size first increases and then decreases very rapidly The average grain size is a minimum There is no change in grain size The grain size increases very rapidly The grain size first increases and then decreases very rapidly The average grain size is a minimum ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is said to be allotropic, if it has Different crystal structures at different temperatures Fixed structure at all temperatures Atoms distributed in random pattern Any one of the above Different crystal structures at different temperatures Fixed structure at all temperatures Atoms distributed in random pattern Any one of the above 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. None of these Cementite Both A and B Free graphite None of these Cementite Both A and B Free graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The elastic stress strain behavior of rubber is Plastic Nonlinear No fixed relationship Linear Plastic Nonlinear No fixed relationship Linear ANSWER DOWNLOAD EXAMIANS APP
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