Engineering Materials Addition of manganese to aluminium results in Improvement of casting characteristics Improvement of corrosion resistance Improving machinability One of the best known age and precipitation hardening systems Improvement of casting characteristics Improvement of corrosion resistance Improving machinability One of the best known age and precipitation hardening systems ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The toughness of a material __________ when it is heated. Remain same None of these Increases Decreases Remain same None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In which of the following cases, consideration of creep is important Cast iron pipes Flywheel of steam engine Gas turbine blades Cycle chains Cast iron pipes Flywheel of steam engine Gas turbine blades Cycle chains ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Corrosion resistance of steel is increased by addition of Vanadium, aluminium Chromium and nickel Tungsten, molybdenum, vanadium, chromium Sulphur, phosphorus, lead Vanadium, aluminium Chromium and nickel Tungsten, molybdenum, vanadium, chromium Sulphur, phosphorus, lead ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Isotropic materials are those which have the same Stresses induced in all directions Elastic properties in all directions Electric and magnetic properties in all directions Thermal properties in all directions Stresses induced in all directions Elastic properties in all directions Electric and magnetic properties in all directions Thermal properties in all directions ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Foundry crucible is made of Mild steel Graphite Lead German silver Mild steel Graphite Lead German silver ANSWER DOWNLOAD EXAMIANS APP