Engineering Materials The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is 910°C 770°C Below recrystallization temperature 1050°C 910°C 770°C Below recrystallization temperature 1050°C ANSWER DOWNLOAD EXAMIANS APP
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 alloying element which reduces the formation of iron sulphide in steel is Vanadium Manganese Nickel Chromium Vanadium Manganese Nickel Chromium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gamma-iron occurs between the temperature ranges of 400°C to 600°C 600°C to 900°C 900°C to 1400°C 1400°C to 1530°C 400°C to 600°C 600°C to 900°C 900°C to 1400°C 1400°C to 1530°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is known as allotropic or polymorphic if it Responds to heat treatment Has its atoms distributed in a random pattern Exists in several crystal forms at different temperatures Has a fixed structure under all conditions Responds to heat treatment Has its atoms distributed in a random pattern Exists in several crystal forms at different temperatures Has a fixed structure under all conditions ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in high speed steel provides Wear resistance Hot hardness Sharp cutting edge Toughness Wear resistance Hot hardness Sharp cutting edge Toughness ANSWER DOWNLOAD EXAMIANS APP
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