Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 20 : 10 50 : 20 : 10 : 20 40 : 30 : 20 : 10 30 : 20 : 30 : 20 50 : 20 : 20 : 10 50 : 20 : 10 : 20 40 : 30 : 20 : 10 30 : 20 : 30 : 20 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The purpose of heat treatment is to Relieve the stresses set up in the material after hot or cold working Modify the structure of the material Any one of these Change grain size Relieve the stresses set up in the material after hot or cold working Modify the structure of the material Any one of these Change grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials High carbon steel carries carbon percentage 0.8 to 1.5% 0.3 to 0.6% 0.1 to 0.3% 0.6 to 0.8% 0.8 to 1.5% 0.3 to 0.6% 0.1 to 0.3% 0.6 to 0.8% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cast iron is a Ductile material Tough material Brittle material Malleable material Ductile material Tough material Brittle material Malleable material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A coarse grained steel 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 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Brass contains 70% copper and 30% zinc 90% copper and 10% tin 70 - 75% copper and rest tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 90% copper and 10% tin 70 - 75% copper and rest tin 85 - 92% copper and rest tin with little lead and nickel ANSWER DOWNLOAD EXAMIANS APP