Engineering Materials Vanadium in high speed steels Promotes decarburisation 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The tensile strength of wrought iron is maximum Uniform in all directions Perpendicular to lines of slag distribution None of these Along the lines of slag distribution Uniform in all directions Perpendicular to lines of slag distribution None of these Along the lines of slag distribution ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The purpose of heat treatment is to Any one of these Relieve the stresses set up in the material after hot or cold working Modify the structure of the material Change grain size Any one of these Relieve the stresses set up in the material after hot or cold working Modify the structure of the material Change grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Acts as deoxidiser Decreases tensile strength and hardness Reduces the grain size Lowers the toughness and transverse ductility Acts as deoxidiser Decreases tensile strength and hardness Reduces the grain size Lowers the toughness and transverse ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Thermoplastic materials are those materials which Are formed into shape under heat and pressure and results in a permanently hard product Do not become hard with the application of heat and pressure and no chemical change occurs Are used as a friction lining for clutches and brakes Are flexible and can withstand considerable wear under suitable conditions Are formed into shape under heat and pressure and results in a permanently hard product Do not become hard with the application of heat and pressure and no chemical change occurs Are used as a friction lining for clutches and brakes Are flexible and can withstand considerable wear under suitable conditions ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Mild steel belongs to the following category High carbon steel Medium carbon steel Low carbon steel Alloy steel High carbon steel Medium carbon steel Low carbon steel Alloy steel ANSWER DOWNLOAD EXAMIANS APP
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