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EndsemMay 20252019 patternBE Electrical

Illumination Engineering SPPU Endsem Question Paper May 2025

All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated Illumination Engineering questions
Subject code
403151 B
Pattern
2019 pattern
Exam
Endsem
Session
May 2025
Max. marks
70
Time
2½ Hours
Semester
VIII
Paper code
[6404]-121

Printed for: B.E. (Electrical Engineering )

Instructions to the candidates

  1. Answer Q.1 or Q.2, Q.3 or Q.4, Q.5 or Q.6, Q.7 or Q.8.
  2. Figures to the right indicate full marks.
  3. Neat diagrams must be drawn wherever necessary.
  4. Assume suitable data, if necessary.
  5. Use of non-programmable calculator is allowed.

Questions

  1. Q1

    1. a)

      Discuss the factors to be considered in Indoor lighting scheme.

      Also asked:Nov 2025 ·Nov 2024 ·Nov 2023 ·May 2023

      [4]
    2. b)

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

      Also asked:May 2023

      [6]
    3. c)

      What are the different cavities to be considered in indoor illumination design? Explain each of them along with a diagram showing the three cavities.

      [8]

  2. Q2

    1. a)

      Explain in brief about Lumen Method.

      [4]
    2. b)

      Discuss in brief about Room reflectance & Room Index.

      [6]
    3. c)

      Explain the terms: Light loss factor, Maintenance factor and acoustic ceiling.

      [8]

  3. Q3

    1. a)

      What is the measure of colour appearance of a lamp? Discuss it in brief.

      [3]
    2. b)

      What are the factors to be considered in Lighting design of an educational institute? Explain each in brief.

      [6]
    3. c)

      State the advantages of good illumination design. Discuss each in brief. 2

      Also asked:Nov 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

      [8]

  4. Q4

    1. a)

      What is contrast (in concern with lighting design)?

      [3]
    2. b)

      Define and explain the following terms: Colour temperature & colour rendering index.

      [6]
    3. c)

      What are the crucial factors in the design of a swimming pool. Discuss each in brief.

      [8]

  5. Q5

    1. a)

      What is the significance of good street lighting?

      [4]
    2. b)

      Which are the lamps suitable for street lights? Explain one in brief.

      [6]
    3. c)

      What are the important features needed in street light luminaires?

      Also asked:Nov 2025

      [8]

  6. Q6

    1. a)

      What is glare in street lighting? Explain each in brief.

      Also asked:Nov 2025

      [4]
    2. b)

      How to calculate the average illuminance on the road surface?

      [6]
    3. c)

      What are the different types of pole arrangement? Also justify the suitability of each for a particular class of road.

      [8]

  7. Q7

    1. a)

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

      Also asked:May 2023

      [3]
    2. b)

      Write a short note on Intelligent lighting.

      [6]
    3. c)

      Compare LED and OLED?

      [8]

  8. Q8

    1. a)

      Compare intelligent lighting for residential & commercial use

      Also asked:Nov 2025 ·Nov 2023 ·May 2023

      [3]
    2. b)

      What are the advantages & disadvantages of OLED?

      Also asked:May 2023

      [6]
    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

      [8]