Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as None of these Eutectic cast irons Hypereutectic cast irons Hypoeutectic cast irons None of these Eutectic cast irons Hypereutectic cast irons Hypoeutectic cast irons ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Wrought iron All of these Is a ductile material Can be easily forged or welded Cannot stand sudden and excessive shocks All of these Is a ductile material Can be easily forged or welded Cannot stand sudden and excessive shocks ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is Chromium Vanadium Nickel Cobalt Chromium Vanadium Nickel Cobalt ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cementite consist of 6.67% carbon and 93.33% iron 13% carbon and 87% ferrite 13% ferrite and 87% cementite 13% cementite and 87% ferrite 6.67% carbon and 93.33% iron 13% carbon and 87% ferrite 13% ferrite and 87% cementite 13% cementite and 87% ferrite ANSWER DOWNLOAD EXAMIANS APP
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 The machinability of steel is increased by Silicon and sulphur Phosphorous and aluminium Phosphorous, lead and sulphur Sulphur, graphite and aluminium Silicon and sulphur Phosphorous and aluminium Phosphorous, lead and sulphur Sulphur, graphite and aluminium ANSWER DOWNLOAD EXAMIANS APP
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