Engineering Materials Vanadium in high speed steels Provides high hot hardness Promotes decarburisation Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes decarburisation Promotes retention of austenite Forms very hard carbides and thus increases wear resistance ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials If a refractory contains high content of silicon, it means refractory is Neutral Acidic Basic Brittle Neutral Acidic Basic Brittle ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has maximum ductility? Aluminium Nickel Copper Mild steel Aluminium Nickel Copper Mild steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel increases if it contains Pearlite Austenite Cementite Martensite Pearlite Austenite Cementite Martensite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The addition of which of the following improves machining of copper? Vanadium Tin Sulphur Zinc Vanadium Tin Sulphur Zinc ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Age hardening is related to Duralumin Silver Brass Copper Duralumin Silver Brass Copper ANSWER DOWNLOAD EXAMIANS APP
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