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Metallurgical Engineering Steel Making In Metallurgy Difficulty: Medium

Manganese recovery in steel making is aided by

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Match the defect with appropriate cause. List-I List-II P. Hot tear 1. Inadequate riser Q. Porosity 2. Loosely rammed sand mould R. Sand inclusions 3. Mould restraint S. Shrinkage cavity 4. Gas entrapment Match the energy gaps in Group II with the materials in Group I . Group I Group II P. Diamond 1. 0.1 eV Q. Silicon 2. 0.7 eV R. Grey tin 3. 1.1 eV 4. 6.0 eV Ferritic stainless steels are straight chromium steels containing . . . . . . . . percent chromium. Tata salt was tested (FCC) with X-ray (0.071nm) which is diffracted by (110) plane with lattice constant of 0.28nm. Find the diffraction angle for 2 nd order diffraction. Boundary layer thickens at solid-fluid interface