Basic Environmental Engineering And Elementary Biology (Evs) - 25-08-2015
Answer all the questions. Each questions has only one valid answer.
- 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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