Engineering Materials In spheroidising process, the steel is None of these Heated up to the lower critical temperature and then cooled in still air Heated below the lower critical temperature and then cooled slowly Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C None of these Heated up to the lower critical temperature and then cooled in still air Heated below the lower critical temperature and then cooled slowly Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Drop forging dies contain carbon of the order of 0.25 to 0.5% 0.1 to 0.2% 0.6 to 0.7% 0.7 to 0.9% 0.25 to 0.5% 0.1 to 0.2% 0.6 to 0.7% 0.7 to 0.9% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of steel is increased by Silicon and sulphur Phosphorous, lead and sulphur Phosphorous and aluminium Sulphur, graphite and aluminium Silicon and sulphur Phosphorous, lead and sulphur Phosphorous and aluminium Sulphur, graphite and aluminium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical temperature Is same for all steels Depends upon the rate of heating Increases as the carbon content in steel increases Decreases as the carbon content in steel increases Is same for all steels Depends upon the rate of heating Increases as the carbon content in steel increases Decreases as the carbon content in steel increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of manganese to aluminium results in One of the best known age and precipitation hardening systems Improvement of corrosion resistance Improving machinability Improvement of casting characteristics One of the best known age and precipitation hardening systems Improvement of corrosion resistance Improving machinability Improvement of casting characteristics ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Connecting rod is, usually, made from Medium carbon steel Low carbon steel High speed steel High carbon steel Medium carbon steel Low carbon steel High speed steel High carbon steel ANSWER DOWNLOAD EXAMIANS APP
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