Practice test

Pollution - Test Set 2

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Cattle waste has COD several times higher than BOD because of
    1. high levels of fiber
    2. high levels of microflora
    3. high levels of cellulose, lignin and fiber
    4. all of the above
    View explanation

    Sign In to See Explanations. Sign Up Here

  2. Question 2

    Air pollution causes
    1. Global warming
    2. Respiratory problem
    3. Soil erosion
    4. None of the above
    View explanation

    Sign In to See Explanations. Sign Up Here

  3. Question 3

    DDT and Aluminium cans are examples of
    1. primary pollutant
    2. secondary pollutant
    3. biodegradable pollutant
    4. non-biodegradable pollutant
    View explanation

    Sign In to See Explanations. Sign Up Here

  4. Question 4

    Which of he following is called the secondary air pollutant?
    1. Ammonia
    2. Ozone
    3. Carbon monoxide
    4. Nitrogen dioxide
    View explanation

    Sign In to See Explanations. Sign Up Here

  5. Question 5

    Common indicator organism of water pollution is
    1. Entamoeba
    2. Escherichia coli
    3. Elchhornia cassipes
    4. Lemna paucicostata
    View explanation

    Sign In to See Explanations. Sign Up Here

  6. Question 6

    The noise level during plane take off is around
    1. 100dB
    2. 150 dB
    3. 200 dB
    4. 250 dB
    View explanation

    Sign In to See Explanations. Sign Up Here

  7. Question 7

    The following waste comes under red category:
    1. metal
    2. drug
    3. oil waste
    4. food waste
    View explanation

    Sign In to See Explanations. Sign Up Here

  8. Question 8

    The disinfection of drinking water municipalities is mostly by
    1. Chlorination
    2. Bromination
    3. Boiling
    4. UV radiation
    View explanation

    Sign In to See Explanations. Sign Up Here

  9. Question 9

    The country where paper recycling was initiated in the world is
    1. Uk
    2. USA
    3. Germany
    4. France
    View explanation

    Sign In to See Explanations. Sign Up Here

  10. Question 10

    What is Incinerator?
    1. Furnace used for burning solid waste
    2. Furnace used for treating liquid waste
    3. Both A and B
    4. None of the above
    View explanation

    Sign In to See Explanations. Sign Up Here

  11. Question 11

    Which of the following is the largest sink for caarbon dioxide gas?
    1. Forests
    2. Oceans
    3. Ice sheets
    4. Grassland
    View explanation

    Sign In to See Explanations. Sign Up Here

  12. Question 12

    Which of the following is a liquide form of aerosol?
    1. Fume
    2. Dust
    3. Mist
    4. Smoke
    View explanation

    Sign In to See Explanations. Sign Up Here

  13. Question 13

    Below, which of the following pH in rain regarded as 'acid rain'?
    1. 7
    2. 7.3
    3. 5.6
    4. 6
    View explanation

    Sign In to See Explanations. Sign Up Here

  14. Question 14

    Which of the following pollutant is the major contributor to photochemical smog?
    1. Peroxynitrates
    2. Hydroperoxides
    3. Nitrogen dioxide
    4. Ozone
    View explanation

    Sign In to See Explanations. Sign Up Here

  15. Question 15

    What is the primary standard level for carbon monoxide for assuring air quality?
    1. 10 ppm
    2. 90 ppm
    3. 1 ppm
    4. 9 ppm
    View explanation

    Sign In to See Explanations. Sign Up Here

  16. Question 16

    BOD value will be maximum in
    1. waste water
    2. river water
    3. rain water
    4. sewaga water
    View explanation

    Sign In to See Explanations. Sign Up Here

  17. Question 17

    During Bhopal gas tragedy, the hurmful gas evolved was
    1. Phosgene
    2. Ammonia
    3. Carbyl amine
    4. methyl isocyanate
    View explanation

    Sign In to See Explanations. Sign Up Here

  18. Question 18

    Which one of the following statements is false?
    1. River pollution is due to industrial and domestic sewage disscharge
    2. surface water contains a lot of organic matters and nutrients
    3. Oil slick in sea increases dissolve oxygen content
    4. Oil spill in sea causes heavy damage to fishery
    View explanation

    Sign In to See Explanations. Sign Up Here

  19. Question 19

    The efficient utilization of fly ash does not recommend for making
    1. Portland fly ash cement
    2. fly ash based building bricks
    3. synthetic stone chips
    4. fillers in concrete
    View explanation

    Sign In to See Explanations. Sign Up Here

  20. Question 20

    Which of the following is a biodegradable pollutant?
    1. Dye effluent
    2. Bleaching effluent
    3. Sewage
    4. Heavy metals
    View explanation

    Sign In to See Explanations. Sign Up Here