Materials and Construction The metals occuring at the lower most position in the electromotive series Are very brittle Are heat insulators Resist corrosion very strongly Do not resist corrosion Are very brittle Are heat insulators Resist corrosion very strongly Do not resist corrosion ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction 18-4-1 high speed steel contains 18%, 4% and 1% respectively of Vanadium, chromium and tungsten Tungsten, vanadium and chromium Chromium, tungsten and vanadium Tungsten, chromium and vanadium Vanadium, chromium and tungsten Tungsten, vanadium and chromium Chromium, tungsten and vanadium Tungsten, chromium and vanadium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Residual magnetism in steel for magnets is increased by the addition of Nickel Tungsten Cobalt Chromium Nickel Tungsten Cobalt Chromium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) Do not require heat treatment for any of its applications Are used for leaf and coiled springs Do not have good resilience properties Is tempered at 850°C Do not require heat treatment for any of its applications Are used for leaf and coiled springs Do not have good resilience properties Is tempered at 850°C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silicon percentage in acid resistant cast iron is about 20 8 4 14 20 8 4 14 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Galvanised iron is Harder Alumina coated iron None of these Protected from rusting Harder Alumina coated iron None of these Protected from rusting ANSWER DOWNLOAD EXAMIANS APP
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