Engineering Materials Quenching is not necessary when hardening is done by Nitriding Case hardening Flame hardening Any one of these Nitriding Case hardening Flame hardening Any one of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities? Sulphur Phosphorus Silicon Manganese Sulphur Phosphorus Silicon Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Blast furnace produces following by reduction of iron ore Cast iron Pig iron Wrought iron Malleable iron Cast iron Pig iron Wrought iron Malleable iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gamma iron exits at following temperature Near melting point Between 910°C and 1400°C Between 1400°C and 1539°C Room temperature Near melting point Between 910°C and 1400°C Between 1400°C and 1539°C Room temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Reduces the grain size Lowers the toughness and transverse ductility Decreases tensile strength and hardness Acts as deoxidiser Reduces the grain size Lowers the toughness and transverse ductility Decreases tensile strength and hardness Acts as deoxidiser ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The charge of the blast furnace consists of Calcined ore, coke and limestone all in equal parts Calcined ore (4 parts), coke (1 part) and limestone (8 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, coke and limestone all in equal parts Calcined ore (4 parts), coke (1 part) and limestone (8 parts) Calcined ore (1 part), coke (8 parts) and limestone (4 parts) Calcined ore (8 parts), coke (4 parts) and limestone (1 part) ANSWER DOWNLOAD EXAMIANS APP
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