Engineering Materials Cobalt in steel Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Improves cutting ability and reduce hardenability Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti corrosion property Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Improves cutting ability and reduce hardenability Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti corrosion property ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Corrosion resistance of steel is increased by adding Tungsten and sulphur Nickel and molybdenum Chromium and nickel Aluminium and zinc Tungsten and sulphur Nickel and molybdenum Chromium and nickel Aluminium and zinc ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The metal suitable for bearings subjected to heavy loads, is Phosphor bronze Monel metal White metal Silicon bronze Phosphor bronze Monel metal White metal Silicon bronze ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following alloys does not have copper as one of the constituents? Nichrome Delta metal Constantan Monel metal Nichrome Delta metal Constantan Monel metal ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in grey iron castings usually varies between 0.5 to 1% 5 to 7% 2.5 to 4.5% 0.012 0.5 to 1% 5 to 7% 2.5 to 4.5% 0.012 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gun metal contains 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 70 - 78% copper and rest tin 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 70 - 78% copper and rest tin 90% copper and 10% tin ANSWER DOWNLOAD EXAMIANS APP
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