Engineering Materials Addition of copper to aluminium results in Improvement of corrosion resistance One of the best known age and precipitation hardening systems Improvement of casting characteristics Improving machinability Improvement of corrosion resistance One of the best known age and precipitation hardening systems Improvement of casting characteristics Improving machinability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Super conduction by metals is observed in the temperature range of Below 10°K Around 100°C Around 0°C Above 100°K Below 10°K Around 100°C Around 0°C Above 100°K ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Admiralty gun metal contains Iron scrap and zinc 88% copper, 10% tin and rest zinc 63 to 67% nickel and 30% copper Alloy of tin, lead and cadmium Iron scrap and zinc 88% copper, 10% tin and rest zinc 63 to 67% nickel and 30% copper Alloy of tin, lead and cadmium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Blast furnace is used to produce Cast iron Pig iron Steel Wrought iron Cast iron Pig iron Steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Reduces the grain size Acts as deoxidiser Decreases tensile strength and hardness Lowers the toughness and transverse ductility Reduces the grain size Acts as deoxidiser Decreases tensile strength and hardness Lowers the toughness and transverse ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Free carbon in iron makes the metal Hard and gives a coarse grained crystalline structure Soft and gives a fine grained crystalline structure Hard and gives a fine grained crystalline structure Soft and gives a coarse grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a fine grained crystalline structure Hard and gives a fine grained crystalline structure Soft and gives a coarse grained crystalline structure ANSWER DOWNLOAD EXAMIANS APP
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