Engineering Materials The addition of which of the following improves machining of copper? Tin Sulphur Zinc Vanadium Tin Sulphur Zinc Vanadium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Blast furnace is used to produce Pig iron Cast iron Wrought iron Steel Pig iron Cast iron Wrought iron Steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When medium carbon steel is heated to coarsening temperature The grain size increases very rapidly There is no change in grain size The average grain size is a minimum The grain size first increases and then decreases very rapidly The grain size increases very rapidly There is no change in grain size The average grain size is a minimum The grain size first increases and then decreases very rapidly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Y-alloy contains 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The charge of the blast furnace consists of Calcined ore (8 parts), coke (4 parts) and limestone (1 part) Calcined ore (4 parts), coke (1 part) and limestone (8 parts) Calcined ore, coke and limestone all in equal parts Calcined ore (1 part), coke (8 parts) and limestone (4 parts) Calcined ore (8 parts), coke (4 parts) and limestone (1 part) Calcined ore (4 parts), coke (1 part) and limestone (8 parts) Calcined ore, coke and limestone all in equal parts Calcined ore (1 part), coke (8 parts) and limestone (4 parts) ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Decreases tensile strength and hardness Acts as deoxidiser Lowers the toughness and transverse ductility Reduces the grain size Decreases tensile strength and hardness Acts as deoxidiser Lowers the toughness and transverse ductility Reduces the grain size ANSWER DOWNLOAD EXAMIANS APP
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