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Illumination Engineering important questionsMost repeated in SPPU papers

These 34 questions appeared in more than one SPPU Illumination Engineering paper we have: 9 papers, from Feb 2023 to Nov 2025. The most-asked come first. Each one links to the papers it was asked in.

All Illumination Engineering papers and notes

Repeated questions

Endsem questions (30)

  1. 6×asked

    State and explain the advantages of good illumination schemes.

    Nov 2025 ·May 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

  2. 5×asked

    Explain the various factors to be considered for design of indoor illumination scheme

    Nov 2025 ·May 2025 ·Nov 2024 ·Nov 2023 ·May 2023

  3. 5×asked

    What are different components of flux are considered in zonal cavity method? Explain each of them

    Nov 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

  4. 4×asked

    Compare intelligent lighting for domestic and commercial use.

    Nov 2025 ·May 2025 ·Nov 2023 ·May 2023

  5. 4×asked

    Explain natural light conduiting system (any two)

    Nov 2025 ·Nov 2024 ·Nov 2023 ·May 2023

  6. 4×asked

    What is Polar Curve? Describe its types. State its significance.

    Nov 2025 ·Nov 2024 ·May 2024 ·Nov 2023

  7. 3×asked

    Explain construction and working of Fiber optic cables. State and explain its types. (any two). Support your answer with diagram. ♦♦♦

    Nov 2025 ·Nov 2024 ·Nov 2023

  8. 3×asked

    Explain following terms with respect to road lighting — i) Visual performance ii) Visual comfort iii) Glare

    Nov 2025 ·Nov 2023 ·May 2023

  9. 3×asked

    Explain working of Laser arrangement with suitable diagram. State types of LASERs.

    Nov 2025 ·Nov 2024 ·Nov 2023

  10. 3×asked

    What are intelligent LED Fixtures? Explain.

    Nov 2025 ·Nov 2024 ·Nov 2023

  11. 3×asked

    What are the cavities to be considered in Indoor lighting design? Define and explain each of them. Also draw a cross section of a room showing these cavities.

    Nov 2025 ·Nov 2023 ·May 2023

  12. 3×asked

    What is Light loss factor? State its types and explain.

    Nov 2025 ·May 2024 ·Nov 2023

  13. 3×asked

    What are the key factors in designing an outdoor illumination scheme? Explain each in brief.

    Nov 2024 ·Nov 2023 ·May 2023

  14. 2×asked

    Define following terms i) Depreciation factor ii) Waste light factor

    Nov 2025 ·Nov 2023

  15. 2×asked

    Define following terms i) Reflection factor ii) Lumen

    Nov 2025 ·Nov 2023

  16. 2×asked

    Explain briefly with respect to residential lighting the following: i) General lighting ii) Decorative lighting iii) Spot / Focus lighting

    Nov 2025 ·Nov 2023

  17. 2×asked

    Explain illumination scheme for health care centres & hospitals

    Nov 2025 ·Nov 2024

  18. 2×asked

    Explain the illumination design for advertisement/ hoardings.

    Nov 2025 ·Nov 2023

  19. 2×asked

    Explain the procedure for design of illumination for an aquarium and swimming pool. 2

    Nov 2025 ·Nov 2023

  20. 2×asked

    Explain the various Road classifications according to BIS.

    Nov 2025 ·Nov 2023

  21. 2×asked

    Explain the working principle and construction of OLED. Support the answer with a diagram.

    Nov 2025 ·Nov 2023

  22. 2×asked

    What are the important features needed in street light luminaires?

    Nov 2025 ·May 2025

  23. 2×asked

    What is glare in street lighting? Explain each in brief

    Nov 2025 ·May 2025

  24. 2×asked

    Define and explain the following terms in concern with Illumination Engineering i) Coefficient of utilization ii) Beam Angle iii) Polar diagram

    May 2025 ·May 2023

  25. 2×asked

    What are intelligent LED lighting systems and how do they work?

    May 2025 ·May 2023

  26. 2×asked

    What are the advantages & disadvantages of OLED?

    May 2025 ·May 2023

  27. 2×asked

    Explain following special purpose lighting scheme. i) Decorative lighting ii) Swimming Pool lighting

    Nov 2024 ·May 2024

  28. 2×asked

    Explain following terms with respect to road lighting- i) Uniformity ratio ii) Field of vision

    Nov 2024 ·Nov 2023

  29. 2×asked

    With suitable diagram explain isolux diagram for designing outdoor illumination scheme.

    Nov 2024 ·Nov 2023

  30. 2×asked

    Write a short note on. i) Coefficient of utilization ii) Beam angle.

    Nov 2024 ·Nov 2023

Insem questions (4)

  1. 3×asked

    Draw a neat & labelled diagram of optical system of human eye.

    Mar 2025 ·Mar 2024 ·Feb 2023

  2. 2×asked

    Explain the terms. i) Visual Acuity ii) Contrast

    Mar 2024 ·Feb 2023

  3. 2×asked

    State the various methods of controlling natural light. Explain.

    Mar 2024 ·Feb 2023

  4. 2×asked

    With suitable diagram explain construction and working of Mercury vapour Lamp.

    Mar 2024 ·Feb 2023

Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.