Engineering Materials The addition of which of the following improves machining of copper? Vanadium Sulphur Zinc Tin Vanadium Sulphur Zinc Tin ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following constituents of steels is softest and least strong? Austenite Ferrite Pearlite Cementite Austenite Ferrite Pearlite Cementite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In nodular iron, graphite is in the form of Spheroids Cementite Flakes Free carbon Spheroids Cementite Flakes Free carbon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A small percentage of boron is added to steel in order to Increase hardenability Increase wear resistance Reduce machinability Increase endurance strength Increase hardenability Increase wear resistance Reduce machinability Increase endurance strength ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials An eutectoid steel consists of Wholly austenite Pearlite and ferrite Wholly pearlite Pearlite and cementite Wholly austenite Pearlite and ferrite Wholly pearlite Pearlite and cementite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A reversible change in the atomic structure of steel with corresponding change in the properties is known as Physical change Allotropic change Molecular change Solidus change Physical change Allotropic change Molecular change Solidus change ANSWER DOWNLOAD EXAMIANS APP