Engineering Materials The purpose of heat treatment is to Any one of these Modify the structure of the material Change grain size Relieve the stresses set up in the material after hot or cold working Any one of these Modify the structure of the material Change grain size Relieve the stresses set up in the material after hot or cold working ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Grey cast iron has Carbon in the form of free graphite High tensile strength Low compressive strength All of these Carbon in the form of free graphite High tensile strength Low compressive strength All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Pearlite consists of 13% ferrite and 87% cementite 13% cementite and 87% ferrite 13% carbon and 87% ferrite 6.67% carbon and 93.33% iron 13% ferrite and 87% cementite 13% cementite and 87% ferrite 13% carbon and 87% ferrite 6.67% carbon and 93.33% iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion. Manganese Silicon Sulphur Phosphorus Manganese Silicon Sulphur Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in cast iron Makes the iron soft and easily machinable Increases hardness and brittleness Make the iron white and hard Aids fusibility and fluidity Makes the iron soft and easily machinable Increases hardness and brittleness Make the iron white and hard Aids fusibility and fluidity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gamma-iron occurs between the temperature ranges of 400°C to 600°C 600°C to 900°C 1400°C to 1530°C 900°C to 1400°C 400°C to 600°C 600°C to 900°C 1400°C to 1530°C 900°C to 1400°C ANSWER DOWNLOAD EXAMIANS APP
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