Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 20 : 10 30 : 20 : 30 : 20 40 : 30 : 20 : 10 50 : 20 : 10 : 20 50 : 20 : 20 : 10 30 : 20 : 30 : 20 40 : 30 : 20 : 10 50 : 20 : 10 : 20 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The material in which the atoms are arranged chaotically, is called Amorphous material Crystalline material None of these Mesomorphous material Amorphous material Crystalline material None of these Mesomorphous material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion. Silicon Phosphorus Manganese Sulphur Silicon Phosphorus Manganese Sulphur ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cyaniding is the process of Reacting steel surface with cyanide salts Obtaining cyanide salts Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness Dipping steel in cyanide bath Reacting steel surface with cyanide salts Obtaining cyanide salts Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness Dipping steel in cyanide bath ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The toughness of a material __________ when it is heated. None of these Increases Remain same Decreases None of these Increases Remain same Decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Super conduction by metals is observed in the temperature range of Above 100°K Below 10°K Around 100°C Around 0°C Above 100°K Below 10°K Around 100°C Around 0°C ANSWER DOWNLOAD EXAMIANS APP
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