Engineering Materials The percentage of carbon in grey iron castings usually varies between 5 to 7% 2.5 to 4.5% 0.012 0.5 to 1% 5 to 7% 2.5 to 4.5% 0.012 0.5 to 1% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to upper critical temperature The grain size first increases and then decreases very rapidly The grain size increases very rapidly There is no change in grain size The average grain size is a minimum The grain size first increases and then decreases very rapidly The grain size increases very rapidly There is no change in grain size The average grain size is a minimum ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Neutral solution is one which has pH value Equal to 7 Greater than 7 Less than 7 pH value has nothing to do with neutral solution Equal to 7 Greater than 7 Less than 7 pH value has nothing to do with neutral solution ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Gives ductility, toughness, tensile strength and anti-corrosion properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The elastic stress strain behavior of rubber is Plastic Linear Nonlinear No fixed relationship Plastic Linear Nonlinear No fixed relationship ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of aluminium increases when _________ is added to aluminium. Copper Magnesium Silicon Lead and bismuth Copper Magnesium Silicon Lead and bismuth ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS