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InsemAug 20252019 patternBE Civil

Air Pollution and Control (APC) SPPU Insem Question Paper Aug 2025

All 4 questions from this SPPU insem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated APC questions
Subject code
401004A
Pattern
2019 pattern
Exam
Insem
Session
Aug 2025
Max. marks
30
Time
1 Hour
Semester
VII
Paper code
[6580]-539

Printed for: B.E. (Civil) (Insem.)

Instructions to the candidates

  1. Answer Q1 or 2, Q3 or 4.
  2. Figures to the right indicate full marks.
  3. Draw neat figures wherever necessary.
  4. Assume necessary data, if required.
  5. Use of scientific calculators is allowed.

Questions

  1. Q1

    1. a)

      Explain with sketch various zones of atmosphere? Explain why unprotected astronaut blood boil in mesosphere?

      [5]
    2. b)

      What is a carbon Footprint? Write emission factor (Conversion factor) for i) Annual Electricity consumption. ii) Annual Transportation use iii) Annual LPGgas consumption.

      [5]
    3. c)

      Define air quality index how it is calculated.

      Also asked:Sep 2024 ·Oct 2022

      [5]

  2. Q2

    1. a)

      Explain the various Initiatives undertaken by Government for mitigation of Ambient air quality?

      [5]
    2. b)

      Explain the important provision made in the environmental protection act 1986.

      Also asked:Oct 2022

      [5]
    3. c)

      Briefly elaborate the Bhopal Gas Tragedy 1984 considering following points i) Reason of accident ii) Effect on human being iii) Remedial measures taken

      [5]

  3. Q3

    1. a)

      Explain the plume rise with sketch, and write 3 empirical formulae to estimate the plume rise

      [5]
    2. b)

      Determine the effective height of a stack, with the following given data: 1. Physical stack is 180 m tall with 0.95m inside diameter. 2. Wind velocity is 2.75m/s 3. Air temperature is 20°C 4. Barometric pressure is l000m bars 5. Stack gas velocity is 11.12m/s 6. Stack gas temperature is 160°C.

      [5]
    3. c)

      Explain the primary and secondary Meteorological parameters?

      [5]

  4. Q4

    1. a)

      Explain the Types of Radiation with Sketch?

      [5]
    2. b)

      Explain Gaussian diffusion model for finding ground level concentration.

      [5]
    3. c)

      A thermal power plant daily burns 100 tonnes of coal with 5.5% Sulphur content. Calculate minimum stack height required. The particulate concentration in flue gases is 8000 mg/m 3 and the gas flow rate is 20m 3 /sec. 

      [5]