Engineering Materials Which of the following represents the allotropic forms of iron? Alpha iron, gamma from and delta iron Alpha iron and beta iron Alpha iron, beta iron and gamma iron Body centered cubic iron and face centered cubic iron Alpha iron, gamma from and delta iron Alpha iron and beta iron Alpha iron, beta iron and gamma iron Body centered cubic iron and face centered cubic iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The crystal structure of brass is F.C.C. H.C.P. C.C. Orthorhombic crystalline structure F.C.C. H.C.P. C.C. Orthorhombic crystalline structure ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Balls for ball bearings are made of Mild steel Stainless steel Carbon-chrome steel Cast iron Mild steel Stainless steel Carbon-chrome steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite. Less than None of these Equal to More than Less than None of these Equal to More than ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel primarily depends on Heat treatment employed Percentage of alloying elements Percentage of carbon Shape of carbides and their distribution in iron Heat treatment employed Percentage of alloying elements Percentage of carbon Shape of carbides and their distribution in iron ANSWER DOWNLOAD EXAMIANS APP
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