Engineering Materials The machinability of aluminium increases when _________ is added to aluminium. Magnesium Copper Lead and bismuth Silicon Magnesium Copper Lead and bismuth Silicon ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Acts as deoxidiser Reduces the grain size Decreases tensile strength and hardness Lowers the toughness and transverse ductility Acts as deoxidiser Reduces the grain size Decreases tensile strength and hardness Lowers the toughness and transverse ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials An example of amorphous material is Lead Zinc Silver Glass Lead Zinc Silver Glass ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The presence of sulphur in pig iron makes It brittle It easily machinable The casting unsound It hard It brittle It easily machinable The casting unsound It hard ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hardness of martensite is about RC 80 RC 65 RC 57 RC 48 RC 80 RC 65 RC 57 RC 48 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Delta iron occurs at temperature of Between 910°C and 1400°C Above melting point Room temperature Between 1400°C and 1539°C Between 910°C and 1400°C Above melting point Room temperature Between 1400°C and 1539°C ANSWER DOWNLOAD EXAMIANS APP
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