Engineering Materials Hardness of martensite is about RC 57 RC 48 RC 65 RC 80 RC 57 RC 48 RC 65 RC 80 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio 40 : 60 2.1180555555556 2.9375 30 : 70 40 : 60 2.1180555555556 2.9375 30 : 70 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel 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 Improves cutting ability and reduces hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Large forgings, crank shafts, axles normally contain carbon up to 0.20 to 0.45% 0.05 to 0.20% 0.55 to 1.0% 0.45 to 0.55% 0.20 to 0.45% 0.05 to 0.20% 0.55 to 1.0% 0.45 to 0.55% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In mottled cast iron, carbon is available in Partly in free and partly in combined state Free form Combined form Nodular form Partly in free and partly in combined state Free form Combined form Nodular form ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Dow metal contains 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg 90% aluminium and 90% copper 90% magnesium and 9% aluminium with some copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg 90% aluminium and 90% copper 90% magnesium and 9% aluminium with some copper ANSWER DOWNLOAD EXAMIANS APP
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