VTU First Year Engineering (C Cycle) (Semester 1)
Environmental Studies
May 2014
Total marks: --
Total time: --
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 The air prevention and control of pollution Act was enacted in the year____
a) 1987
b) 1974
c) 1981
d) 1986
1 M

2 Smog is fromed by the reaction of which air pollutants.
a) Smoke and mist
b) Smoke and fog
c) Smoke and biogas
d) Smoke and dust
1 M

3 Which of the following is not a solution for global warming?
a) Reducing use of fossil fuels
b) Planting more trees
c) Deforestation
d) Reducing vehicular transportation
1 M

4 Methemoglobinemia is caused by the contamination of water due to _______
a) Mercury
b) Nitrate
c) Arsenic
d) Nitrates
1 M

5 Earth's day is celebrated on ______ every year
a) June 22
b) Sept 22
c) Aprill 22
d) June 5
1 M

6 HIV can be transmitted to humans through which media?
a) air
b) Blood
c) Virus
d) Hereditary
1 M

7 Mineral resources are
a) Renewable
b) Fossil fuels
c) Non-renewable
d) Sedimentary rocks
1 M

8 World Ozone day is being celebrated on every year
a) 15 Sept
b) 16 October
c) 16 Sept
d) 22 April
1 M

9 Contribution of carbon dioxide to global warming from industries
a) 50%
b) 24%
c) 25%
1 M

10 Which atmospheric layer is closest to the Earth's surface?
a) Mesosphere
b) Troposphere
c) Stratosphere
d) Thermosphere
1 M

11 Ozone is present in which layer of the atmosphere
a) Ozonosphere
b) Stratosphere
c) Troposphere
d) Ionosphere
1 M

12 What is the maximum allowable concentration of fluorides in drinking water?
a) 1.0mg/l
b) 1.25mg/l
c) 1.50mg/l
d) 1.60mg/l
1 M

13 Which of the following gas is not concerned with the green house effect?
a) CO2
b) CH4
c) SO2
d) H2O vapor
1 M

14 Which of the following is not a renewable source of energy?
a) Solar
b) Wind
c) Nuclear
d) Geo-thermal
1 M

15 Optimum growth of bacteria in favorable pH value of
a) 6.5 - 8.5
b) 7.0
c) 6.5 - 7.5
d) 7.0 - 14.0
1 M

16 Eutrophication means
a) Quality of water in lakes
b) Enrichment of plant nutrients in water
c) Water purification technique
d) Meeting point of river and sea.
1 M

17 Earth's body temperature is approximately equal to ______?
a) 16.4 degree celcius
b) 16.6 degree celcius
c) 36 degree celcius
d) 21.6 degree celcius
1 M

18 Presence of BOD in drinking water indicates
a) Rich content of oxygen
b) Organic matter
c) Turbidity
d) Physical impurities
1 M

19 Which of the following is a natural source of Air pollution?
a) Acid rain
b) Precipitation
c) Storms
d) Volcanic eruption
1 M

20 Effect of carbon monooxide on blood, causing
a) H2CO3
b) COHb
c) CO2Hb
d) HbCO2
1 M

21 Anthropogenic activities means
a) Natural made
b) Biological
c) Man made
d) Animal made
1 M

22 Which of the following energy source is less eco-friendly?
a) Wind
b) Water
c) Solar
d) Thermal
1 M

23 Which of the following is a biotic component of an ecosystem?
a) Sunlight
b) Fungi
c) Temperature
d) Water
1 M

24 Generation of wind energy is mainly based on which factor?
a) Direction of wind
b) Storms
c) Velocity of wind
d) Wind pressure
1 M

25 Example ofr abiotic component of an ecosystem
a) Plants
b) Food
c) Water
d) Live stock
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26 Expansion of the term WWF is _____
a) World Wide life Force
b) World Wide Forest
c) World Wide life Forest
d) World Wild life Fund
1 M

27 Maximum allowable concentration of total hardness as per BIS in drinking water is _____
a) 600mg/l
b) 300mg/l
c) 1000mg/l
d) 250 mg/l
1 M

28 Water pollution prevention and control act was enacted in the year ______
a) 1986
b) 1974
c) 1981
d) 1987
1 M

29 Stone cancer is an effect of
a) Climatic change
b) Hard water
c) Acid rain
d) Excess of calcium
1 M

30 Most stable eco-system is ______
a) Mountain
b) Ocean
c) Population
d) Fossil fuels
1 M

31 Example for tertiary consumers
a) Plants
b) Cattle
c) Snake
d) Elephant
1 M

32 As per BIS, the minimum allowable limit of iron content in drinking water is ____
a) 1.0mg/l
b) 0.2mg/l
c) 0.3mg/l
d) 0.5mg/l
1 M

33 In hydro power plants, power is generated by _____
a) Solar
b) Thermal
c) Water
d) Coal
1 M

34 The pH value of acid rain was recorded in early days
a) 2.5
b) 7.5
c) 4.7
d) 5.7
1 M

35 First international Earth summit was held at
a) USA
b) Russia
c) Rio-de-Janeiro
d) Johannesberg
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36 Bhopal gas tragedy was caused due to leakage of ___
a) CH4
b) MIC
c) SO2
d) Pesticides
1 M

37 Karnatake state pollution control board was established in the year
a) 1984
b) 1976
c) 1974
d) 1983
1 M

38 Among all oxides of nitrogen which one is responsible for the formation of the acid rain?
a) Nitrous oxide
b) Nitric oxide
c) Nitrogen trioxide
d) Nitrogen pentoxide
1 M

39 The liquid waste generated from municipal solid waste disposal pits is called
a) Solid waste water
b) Sewage
c) Leachate
d) Compost waste water
1 M

40 Minimum allowable limit of noise pollution for human persistence is ___
a) 40dB
b) 90dB
c) 45dB
d) 55dB
1 M

41 Demography means
a) Study on forest
b) Study on human activities
c) Study on earthquake
d) Study on population growth
1 M

42 Freons are called
a) Hydrocarbons
b) Ozone
c) Methane
d) Solvents
1 M

43 Which of the following is a biodegradable pollutant?
a) DDT
b) Sewage
c) CFC
d) Freons
1 M

44 Percentage of ground water available on Earth's environment is ____
a) 0.02
b) 0.5
c) 1.5
d) 0.2
1 M

45 During green house effect, carbon dioxide and water vapor absorbs
a) Short wave radiations
b) Long wave radiations
c) Solar radiation
d) UV radiations
1 M

46 Amount of Carbon dioxide present in atmosphere air is
a) 21%
b) 0.383%
c) 78%
d) 0.318%
1 M

47 Estuary means
a) Rich in nutrients
b) End point of the river
c) Meeting place of river and sea
d) Treatment of water
1 M

48 Physical pollution of water is due to
a) Chlorides
b) Turbidity
c) pH
d) All of these
1 M

49 Control of water borne diseases can be achieved effectively in a community by
a) Defluoridation
b) Disinfection
c) Sterilization
d) Vaccination
1 M

50 Ozone layer thickness is measured in which units?
a) PPM
b) PPB
c) Db
d) DU
1 M

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