GATE 2022 AR — Architecture – Question 50

Building Construction, Materials, and Structural Systems · Building materials characteristics & applications · 1 mark · Multiple choice

Which process is used for surface treatment of metals?

Soldering
Thermoplating
Extrusion
Riveting

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Correct answer: (B) Thermoplating

Explanation

Thermoplating is the surface-treatment option, B. Soldering and riveting join components, while extrusion shapes a section by forcing material through a die. The question distinguishes a surface treatment from joining and bulk-forming operations.

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