GATE Building Services: Principles of electrification and illumination and special lighting for buildings – Previous Year Questions
5 GATE previous year questions on Principles of electrification and illumination and special lighting for buildings (Building Services, Architecture and Planning) with answers and explanations, from every paper.
- GATE 2021 AR Q58 – A 180 m diameter circular cricket field has four equally spaced perimeter floodlight towers 48 m high. Each tower has fifty 700 W lamps. Centre…
- GATE 2023 AR — Architecture Q61 – Match P goniophotometer, Q pyrheliometer, R spectrophotometer, S forward-looking infrared instrument with 1 spectral response at specific wavelengths,…
- GATE 2023 AR — Architecture Q62 – Match P scotopic vision, Q presbyopia, R emmetropia, S photopic vision with 1 low-light rod vision, 2 bright-light cone vision, 3 myopia, 4 normal…
- GATE 2025 AR — Architecture Q64 – Point light C is 1.75 m vertically above A. B is 1 m horizontally from A on the same receiving plane. If illumination at A is 300 lux, find…
- GATE 2026 AR — Architecture Q64 – A 25×12 m conference room has CFL efficacy 60 lumen/W and lighting-power density 12 W/m². Utilisation factor is 0.8 and maintenance factor 0.5. Find…