Engineering Materials Which of the following impurity in cast iron makes it hard and brittle? Sulphur Phosphorus Silicon Manganese Sulphur Phosphorus Silicon Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Beryllium bronze contains 97.75% copper and 2.25% beryllium 80% copper and 20% beryllium 60% copper and 40% beryllium 99% copper and 1% beryllium 97.75% copper and 2.25% beryllium 80% copper and 20% beryllium 60% copper and 40% beryllium 99% copper and 1% beryllium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials White metal contains Silver and chromium Alloy of tin, lead and cadmium 88% copper and 10% tin and rest zinc 63 to 67% nickel and 30% copper Silver and chromium Alloy of tin, lead and cadmium 88% copper and 10% tin and rest zinc 63 to 67% nickel and 30% copper 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 Preheating is essential in welding All of these Cast iron High speed steel All nonferrous materials All of these Cast iron High speed steel All nonferrous materials ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves wear resistance, cutting ability and toughness 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 cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness 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 cutting ability and reduces hardenability ANSWER DOWNLOAD EXAMIANS APP
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