Engineering Materials Iron ore is usually found in the form of Oxides All of these Sulphides Carbonates Oxides All of these Sulphides Carbonates ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as Eutectic cast irons Hypoeutectic cast irons Hypereutectic cast irons None of these Eutectic cast irons Hypoeutectic cast irons Hypereutectic cast irons None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Closed packed hexagonal space lattice is found in Zinc, magnesium, cobalt, cadmium, antimony and bismuth Alpha-iron, tungsten, chromium and molybdenum None of these Gamma-iron, aluminium, copper, lead, silver and nickel Zinc, magnesium, cobalt, cadmium, antimony and bismuth Alpha-iron, tungsten, chromium and molybdenum None of these Gamma-iron, aluminium, copper, lead, silver and nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Shock resistance of steel is increased by adding Sulphur, lead and phosphorus Nickel Chromium Nickel and chromium Sulphur, lead and phosphorus Nickel Chromium Nickel and chromium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Wrought iron Is a ductile material Can be easily forged or welded All of these Cannot stand sudden and excessive shocks Is a ductile material Can be easily forged or welded All of these Cannot stand sudden and excessive shocks ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability ANSWER DOWNLOAD EXAMIANS APP
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