GATE 2026 AR — Architecture – Question 59

Building Construction, Materials, and Structural Systems · Building materials characteristics & applications · 2 marks · Multiple choice

Under the NBC 2016 terminology, match glass P reflective, Q tempered fire-resistant, R insulating glass units, S wired with 1 edge-sealed prefabricated multi-sheet unit, 2 embedded wire mesh, 3 rolled surface pattern, 4 metallic coating to reduce heat gain/glare, 5 breaks into granular fragments without large sharp edges.

P–5; Q–4; R–3; S–2
P–4; Q–2; R–1; S–3
P–4; Q–5; R–1; S–2
P–1; Q–5; R–4; S–3

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Correct answer: (C) P–4; Q–5; R–1; S–2

Explanation

Reflective glass uses the specified metallic coating(4). The tempered glass description concerns granular breakage(5). An insulating glass unit seals multiple panes at the edges(1), while wired glass embeds mesh(2). Thus C. Patterned rolled glass is the unused description; these matches do not imply that every ordinary tempered pane independently meets a fire-resistance rating.

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