Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as Hypereutectic cast irons Hypoeutectic cast irons Eutectic cast irons None of these Hypereutectic cast irons Hypoeutectic cast irons Eutectic cast irons None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Provides high hot hardness Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Promotes decarburisation Provides high hot hardness Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Promotes decarburisation ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The material in which the atoms are arranged regularly in some directions but not in others, is called Crystalline material None of these Amorphous material Mesomorphous material Crystalline material None of these Amorphous material Mesomorphous material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tensile strength of steel can be safely increased by Adding carbon up to 0.83% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 6.3% Adding carbon up to 0.83% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 6.3% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In malleable iron, carbon is present in the form of Flakes Free carbon Cementite Nodular aggregates of graphite Flakes Free carbon Cementite Nodular aggregates of graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion. Silicon Sulphur Phosphorus Manganese Silicon Sulphur Phosphorus Manganese ANSWER DOWNLOAD EXAMIANS APP
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