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 Cemented carbide tools are not found to be suitable for cutting Aluminium Brass Steel Cast iron Aluminium Brass Steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Drop forging dies contain carbon of the order of 0.6 to 0.7% 0.25 to 0.5% 0.7 to 0.9% 0.1 to 0.2% 0.6 to 0.7% 0.25 to 0.5% 0.7 to 0.9% 0.1 to 0.2% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials For the allotropic forms of iron, the points of arrest are The points of discontinuity The points where there is no further flow of metal Constant for all metals The points where no further change occurs The points of discontinuity The points where there is no further flow of metal Constant for all metals The points where no further change occurs ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Manganese in steel increases its Hardness Fluidity Tensile strength Ductility Hardness Fluidity Tensile strength Ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel Improves cutting ability and reduces hardenability 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 wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability 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 wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
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