Engineering Materials Which is false statement about tempering? Tempering is done to Release stresses Improve machinability Improve ductility Improve toughness Release stresses Improve machinability Improve ductility Improve toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The following element can't impart high strength at elevated temperature Magnesium Manganese Silicon Nickel Magnesium Manganese Silicon Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Machining properties of steel are improved by adding Chromium, nickel Silicon, aluminium, titanium Sulphur, lead, phosphorous Vanadium, aluminium Chromium, nickel Silicon, aluminium, titanium Sulphur, lead, phosphorous Vanadium, aluminium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ferromagnetic alpha iron exists in temperature range of 1400 to 1539°C 770 to 910°C 910 to 1440°C Below 723°C 1400 to 1539°C 770 to 910°C 910 to 1440°C Below 723°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is 910°C 770°C 1050°C Below recrystallization temperature 910°C 770°C 1050°C Below recrystallization temperature ANSWER DOWNLOAD EXAMIANS APP
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