Basic Environmental Engineering And Elementary Biology (Evs) - 25-08-2015

40 Questions | Total Attempts: 349

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Basic Environmental Engineering And Elementary Biology (Evs) - 25-08-2015

Answer all the questions. Each questions has only one valid answer.


Questions and Answers
  • 1. 
    A natural phenomenon that becomes harmful due to pollution is
    • A. 

      Global warming

    • B. 

      Ecological balance

    • C. 

      Desertification

    • D. 

      Greenhouse effect

  • 2. 
    An air pollutant that reduce oxygen-carrying capacity of haemoglobin is
    • A. 

      Ammonia

    • B. 

      Hydrogen sulphide

    • C. 

      Carbon monoxide

    • D. 

      Carbon dioxide

  • 3. 
    Hydrosphere consists of
    • A. 

      Air layers

    • B. 

      Rocks

    • C. 

      Soil

    • D. 

      Various water bodies and oceans

  • 4. 
    In the stratosphere, with increasing altitude, temperature
    • A. 

      Rises gradually

    • B. 

      Decreases gradually

    • C. 

      Remains same

    • D. 

      Has no definite pattern of change

  • 5. 
    Ozone is the main constituent of
    • A. 

      Troposphere

    • B. 

      Stratosphere

    • C. 

      Mesosphere

    • D. 

      Thermosphere

  • 6. 
    The atmosphere is neutrally stable under the condition of
    • A. 

      ELR > ALR

    • B. 

      ELR = ALR

    • C. 

      ELR < ALR

    • D. 

      none of these

  • 7. 
    The dry adiabatic lapse rate in the troposphere is about
    • A. 

      −9.8 °C/Km

    • B. 

      −4.5 °C/Km

    • C. 

      −6.9 °C/Km

    • D. 

      −8.9 °C/Km

  • 8. 
    The hottest region of the atmosphere is
    • A. 

      Troposphere

    • B. 

      Mesosphere

    • C. 

      Stratosphere

    • D. 

      Thermosphere

  • 9. 
    The IR active gas is 
    • A. 

      O2

    • B. 

      CO2

    • C. 

      N2

    • D. 

      He

  • 10. 
    The pollutant responsible for ozone holes is
    • A. 

      CO2

    • B. 

      CFC

    • C. 

      CO

    • D. 

      SO2

  • 11. 
    The simple global temperature model predicts earth atmosphere to
    • A. 

      0°C

    • B. 

      34°C

    • C. 

      −19°C

    • D. 

      −273°C

  • 12. 
    The temperature range of mesosphere is
    • A. 

      −2°C to −92°C

    • B. 

      15°C to −56°C

    • C. 

      −56°C to −2°C

    • D. 

      −92°C to 1200°C

  • 13. 
    A natural phenomonone that becomes harmful due to pollution is
    • A. 

      Global warming

    • B. 

      Ecological balance

    • C. 

      Desertification

    • D. 

      Greenhouse effect

  • 14. 
    …………………………….of stratosphere provides protection of our life
    • A. 

      Ozone

    • B. 

      Nitrogen

    • C. 

      Hydrogen

    • D. 

      Argon

  • 15. 
    In the atmosphere, the larger above the troposhere is
    • A. 

      Stratosphere

    • B. 

      Exosphere

    • C. 

      Mesosphere

    • D. 

      Thermosphere

  • 16. 
    Ozone is the main constituent of
    • A. 

      Troposphere

    • B. 

      Stratosphere

    • C. 

      Mesosphere

    • D. 

      Thermosphere

  • 17. 
    The atmosphere is neutrally stable under the condition of
    • A. 

      ELR > ALR

    • B. 

      ELR = ALR

    • C. 

      ELR < ALR

    • D. 

      None of the above

  • 18. 
    The dry adiabatic lapse rate in the troposphere is about (in degree Celsium/Km)
    • A. 

      -9.8

    • B. 

      -4.5

    • C. 

      -8.9

    • D. 

      -7.8

  • 19. 
    Ozone has strongest absorption band at
    • A. 

      9 µm

    • B. 

      12 µm

    • C. 

      6 µm

    • D. 

      16 µm

  • 20. 
    Short term properties of the atmosphere at a given place and time is referred to as
    • A. 

      Microclimate

    • B. 

      Climate

    • C. 

      Weather

    • D. 

      Season

  • 21. 
    Which of the following conceptual sphere of the environment has the least storage cpacity of matter ?
    • A. 

      Atmosphere

    • B. 

      Hydrosphere

    • C. 

      Lithosphere

    • D. 

      Biosphere

  • 22. 
    ESP is
    • A. 

      Electrostatic precipitator

    • B. 

      Electrostatic producer

    • C. 

      Electrostatic production

    • D. 

      Electron source precipitator

  • 23. 
    Air pollutant which reduces oxygen carrying capacity of haemoglobin is
    • A. 

      Ammonia

    • B. 

      Hydrogen sulphide

    • C. 

      Carbon monoxide

    • D. 

      None of these

  • 24. 
    Lapse rate refers to the rate at which
    • A. 

      Population increases in an area with increasing temperature

    • B. 

      Temperature decreases with increase in elevation

    • C. 

      Temperature decreases with decrease in elevation

    • D. 

      None of these

  • 25. 
    Ozone is a pollutant when present in
    • A. 

      Stratosphere

    • B. 

      Troposphere

    • C. 

      Mesosphere

    • D. 

      Thermosphere

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