Materials and Construction Iron rust is Ferrous oxide Powdered iron Hydrated ferric oxide Ferric sulphide Ferrous oxide Powdered iron Hydrated ferric oxide Ferric sulphide ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The electrical conductivity of a __________ decreases with rise in temperature. None of these Dielectric Metal/alloy Semi-conductor None of these Dielectric Metal/alloy Semi-conductor ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one has the maximum tensile strength out of the following? Grey cast iron Nodular cast iron Pig iron White cast iron Grey cast iron Nodular cast iron Pig iron White cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Percentage elongation of a material is a measure of its Toughness Malleability Ductility Brittleness Toughness Malleability Ductility Brittleness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. Having poor fatigue resistance Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor toughness Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor fatigue resistance Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor toughness Not helpful in producing cleaner steel due to oxidising action of vanadium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ can replace tungsten in high speed steel, Cobalt Chromium Vanadium Molybdenum Cobalt Chromium Vanadium Molybdenum ANSWER DOWNLOAD EXAMIANS APP
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