VTU Environmental Studies - June 2014 Exam Question Paper

VTU First Year Engineering (C Cycle) (Semester 2)
Environmental Studies
June 2014

Total marks: --
Total time: --

INSTRUCTIONS
(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

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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

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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

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

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

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

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

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

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9 Contribution of carbon dioxide to global warming from industries
a) 50%
b) 24%
c) 25%
d)75%

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

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

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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

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

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

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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

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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.

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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

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

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

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

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

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

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

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

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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

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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

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

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

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

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

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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

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

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

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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

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

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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

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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

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

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

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

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

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

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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

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

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

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

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

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

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