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EndsemMay 20252019 patternBE Civil

Air Pollution and Control (APC) 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 APC questions
Subject code
401004A
Pattern
2019 pattern
Exam
Endsem
Session
May 2025
Max. marks
70
Time
2½ Hours
Semester
VII
Paper code
[6404]-61

Printed for: B.E. (Civil)

Instructions to the candidates

  1. Answer Q.1 or Q.2, Q.3 or Q.4, Q5 or Q6, Q7 or Q8.
  2. Figures to the right indicate full marks.
  3. Neat diagrams must be drawn wherever necessary.
  4. Assume any other data, if necessary.

Questions

  1. Q1

    1. a)

      Enlist Various methods of Sampling Particulate matter and Explain any one in detail.

      Also asked:Nov 2024 ·Nov 2023

      [7]
    2. b)

      Describe WHO, Air Quality guidelines 2021.

      [5]
    3. c)

      Describe the Important functions of CPCB.

      [5]

  2. Q2

    1. a)

      Explain with neat sketch location of sampling ports and traverse point.

      Also asked:May 2024 ·May 2023

      [7]
    2. b)

      Write a short note on high volume sampler.

      Also asked:Nov 2024 ·Nov 2023 ·May 2023

      [5]
    3. c)

      What is iso kinetic, sub iso kinetic iso kinetic sampling? Why is it required?

      [5]

  3. Q3

    1. a)

      Describe the importance of Air Quality Modelling?

      Also asked:Nov 2025 ·Nov 2024 ·Nov 2023

      [7]
    2. b)

      Explain the strength and limitation of clear ACT( 1970).

      [5]
    3. c)

      Describe the responsibilities of Environmental Protection agencies.

      [5]

  4. Q4

    1. a)

      State Classification of Air quality Modelling.

      Also asked:Nov 2025 ·Nov 2024 ·Nov 2023

      [7]
    2. b)

      Write short note on USEPA.

      [5]
    3. c)

      Write short note on EPA. 2

      [5]

  5. Q5

    1. a)

      A cylindrical Electrostatic precipitator of Diameter 0.3 m is used for Separating pulverized coal fly ash particles from a furnace gas stream. If volumetric flow rate of the gas is 0.05m3/s, what will be the length of the precipitator for obtaining a collection efficiency of 99.9%? what percent change in electrode collection area is required to increase the collection efficiency from 99.9 to 99.95%.

      [8]
    2. b)

      Write note on Fabric Filters.

      [5]
    3. c)

      What are the incinerators? Draw sketch and explain its working.

      [5]

  6. Q6

    1. a)

      A monodispersed aerosol 1.99  m in diameter is passed through a gravity settler 20 cm wide and 50 cm long with 18 plates and channel thickness 0.124 cm. the gas flow is rate 8.6 LPM and it is observed that it operates at an efficiency of 64.9% how many plates would be required to have the unit operate at 80% efficiency.

      [8]
    2. b)

      Write a note on flood and ducts.

      [5]
    3. c)

      Describe advantage and disadvantages of gravity settling chamber.

      Also asked:Nov 2025

      [5]

  7. Q7

    1. a)

      Define indoor air pollution, state causes and effects of indoor air pollutants.

      Also asked:Nov 2025 ·Nov 2024 ·Nov 2023 ·Nov 2022

      [6]
    2. b)

      Explain Sick building Syndrome.

      Also asked:May 2024 ·May 2023 ·Nov 2022

      [6]
    3. c)

      Explain air cleaning system for indoor air pollution control.

      [6]

  8. Q8

    1. a)

      How can the indoor air pollution be controlled using ventilation?

      [6]
    2. b)

      Explain method of Measurements of odor.

      [6]
    3. c)

      Describe the method of oxidation used to eliminate odor. 

      [6]