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Metallurgical Engineering Powder Metallurgy Difficulty: Medium

Match the associated primary change in Group 2 with the corresponding phenomenon in Group 1 . Group 1 Group 2 P. Recovery 1. change in dislocation density Q. Recrystallisation 2. change in the shape of a phase R. Malleabilising 3. change in vacancy concentration S. Texture 4. change in grain orientation Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature & pressure limits of the reactor? Match the properties in Group 1 with the testing techniques in Group 2 . Group 1 Group 2 P. Electrical conductivity 1. Jominy test Q. Impact energy 2. Izod test R. Thermal expansion 3. Dilatometry S. Specific heat 4. Four probe technique 5. Differential scanning calorimetry For dislocation with Burger vector b, the energy is Identify the false statement.