Engineering Materials Vanadium in high speed steels Provides high hot hardness Forms very hard carbides and thus increases wear resistance Promotes retention of austenite Promotes decarburisation Provides high hot hardness Forms very hard carbides and thus increases wear resistance Promotes retention of austenite Promotes decarburisation ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Pearlite consists of 6.67% carbon and 93.33% iron 13% cementite and 87% ferrite 13% carbon and 87% ferrite 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% cementite and 87% ferrite 13% carbon and 87% ferrite 13% ferrite and 87% cementite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Age hardening is related to Brass Duralumin Silver Copper Brass Duralumin Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials For the allotropic forms of iron, the points of arrest are Constant for all metals The points where no further change occurs The points where there is no further flow of metal The points of discontinuity Constant for all metals The points where no further change occurs The points where there is no further flow of metal The points of discontinuity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Super conduction by metals is observed in the temperature range of Below 10°K Above 100°K Around 0°C Around 100°C Below 10°K Above 100°K Around 0°C Around 100°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has nearly zero coefficient of expansion? Heat resisting steel Invar High speed steel Stainless steel Heat resisting steel Invar High speed steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
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