GATE ME 2014 Set 4 — Question 30

MCQ+1 / -0.33EasyWelding Metallurgy & HAZJoiningManufacturing Processes

Manufacturing Processes → Joining → Welding Metallurgy & HAZ

Last updated 5 September 2026

Question

Within the Heat Affected Zone (HAZ) in a fusion welding process, the work material undergoes

Correct answer (A) microstructural changes but does not melt Solution The Heat Affected Zone (HAZ) is the area of base material which has had its microstructure and properties altered by intensive heat-induction during welding, but it is defined by the fact that it has not reached the melting temperature. Therefore, it undergoes microstructural changes without melting. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (A) microstructural changes but does not melt Solution The Heat Affected Zone (HAZ) is the area of base material which has had its microstructure and properties altered by intensive heat-induction during welding, but it is defined by the fact that it has not reached the melting temperature. Therefore, it undergoes microstructural changes without melting.

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