Engineering Materials Bell metal contains 85 - 92% copper and rest tin with little lead and nickel 90% copper and 10% tin 70 - 75% copper and rest tin 70% copper and 30% zinc 85 - 92% copper and rest tin with little lead and nickel 90% copper and 10% tin 70 - 75% copper and rest tin 70% copper and 30% zinc 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
Engineering Materials A coarse grained steel Is less tough and has a less tendency to distort during heat treatment Is more ductile and has a greater tendency to distort during heat treatment Is less tough and has a greater tendency to distort during heat treatment Is more ductile and has a less tendency to distort during heat treatment Is less tough and has a less tendency to distort during heat treatment Is more ductile and has a greater tendency to distort during heat treatment Is less tough and has a greater tendency to distort during heat treatment Is more ductile and has a less tendency to distort during heat treatment ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Duralumin contains 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite. Equal to Less than More than None of these Equal to Less than More than None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ability of a material to resist softening at high temperature is known as Creep Fatigue Hot hardness Hot tempering Creep Fatigue Hot hardness Hot tempering ANSWER DOWNLOAD EXAMIANS APP
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