Environmental Studies - Jun 2014

First Year Engineering (C Cycle) (Semester 2)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 The air prevention and control of pollution Act was enacted in the year____
a) 1987
b) 1974
c) 1981
d) 1986(1 marks) 10 Which atmospheric layer is closest to the Earth's surface?
a) Mesosphere
b) Troposphere
c) Stratosphere
d) Thermosphere(1 marks) 11 Ozone is present in which layer of the atmosphere
a) Ozonosphere
b) Stratosphere
c) Troposphere
d) Ionosphere(1 marks) 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 marks) 13 Which of the following gas is not concerned with the green house effect?
a) CO2
b) CH4
c) SO2
d) H2O vapor(1 marks) 14 Which of the following is not a renewable source of energy?
a) Solar
b) Wind
c) Nuclear
d) Geo-thermal(1 marks) 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 marks) 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 marks) 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 marks) 18 Presence of BOD in drinking water indicates
a) Rich content of oxygen
b) Organic matter
c) Turbidity
d) Physical impurities(1 marks) 19 Which of the following is a natural source of Air pollution?
a) Acid rain
b) Precipitation
c) Storms
d) Volcanic eruption(1 marks) 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 marks) 20 Effect of carbon monooxide on blood, causing
a) H2CO3
b) COHb
c) CO2Hb
d) HbCO2(1 marks) 21 Anthropogenic activities means
a) Natural made
b) Biological
c) Man made
d) Animal made(1 marks) 22 Which of the following energy source is less eco-friendly?
a) Wind
b) Water
c) Solar
d) Thermal(1 marks) 23 Which of the following is a biotic component of an ecosystem?
a) Sunlight
b) Fungi
c) Temperature
d) Water(1 marks) 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 marks) 25 Example ofr abiotic component of an ecosystem
a) Plants
b) Food
c) Water
d) Live stock(1 marks) 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 marks) 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 marks) 28 Water pollution prevention and control act was enacted in the year ______
a) 1986
b) 1974
c) 1981
d) 1987(1 marks) 29 Stone cancer is an effect of
a) Climatic change
b) Hard water
c) Acid rain
d) Excess of calcium(1 marks) 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 marks) 30 Most stable eco-system is ______
a) Mountain
b) Ocean
c) Population
d) Fossil fuels(1 marks) 31 Example for tertiary consumers
a) Plants
b) Cattle
c) Snake
d) Elephant(1 marks) 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 marks) 33 In hydro power plants, power is generated by _____
a) Solar
b) Thermal
c) Water
d) Coal(1 marks) 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 marks) 35 First international Earth summit was held at
a) USA
b) Russia
c) Rio-de-Janeiro
d) Johannesberg(1 marks) 36 Bhopal gas tragedy was caused due to leakage of ___
a) CH4
b) MIC
c) SO2
d) Pesticides(1 marks) 37 Karnatake state pollution control board was established in the year
a) 1984
b) 1976
c) 1974
d) 1983(1 marks) 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 marks) 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 marks) 4 Methemoglobinemia is caused by the contamination of water due to _______
a) Mercury
b) Nitrate
c) Arsenic
d) Nitrates(1 marks) 40 Minimum allowable limit of noise pollution for human persistence is ___
a) 40dB
b) 90dB
c) 45dB
d) 55dB(1 marks) 41 Demography means
a) Study on forest
b) Study on human activities
c) Study on earthquake
d) Study on population growth(1 marks) 42 Freons are called
a) Hydrocarbons
b) Ozone
c) Methane
d) Solvents(1 marks) 43 Which of the following is a biodegradable pollutant?
a) DDT
b) Sewage
c) CFC
d) Freons(1 marks) 44 Percentage of ground water available on Earth's environment is ____
a) 0.02
b) 0.5
c) 1.5
d) 0.2(1 marks) 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 marks) 46 Amount of Carbon dioxide present in atmosphere air is
a) 21%
b) 0.383%
c) 78%
d) 0.318%(1 marks) 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 marks) 48 Physical pollution of water is due to
a) Chlorides
b) Turbidity
c) pH
d) All of these(1 marks) 49 Control of water borne diseases can be achieved effectively in a community by
a) Defluoridation
b) Disinfection
c) Sterilization
d) Vaccination(1 marks) 5 Earth's day is celebrated on ______ every year
a) June 22
b) Sept 22
c) Aprill 22
d) June 5(1 marks) 50 Ozone layer thickness is measured in which units?
a) PPM
b) PPB
c) Db
d) DU(1 marks) 6 HIV can be transmitted to humans through which media?
a) air
b) Blood
c) Virus
d) Hereditary(1 marks) 7 Mineral resources are
a) Renewable
b) Fossil fuels
c) Non-renewable
d) Sedimentary rocks(1 marks) 8 World Ozone day is being celebrated on every year
a) 15 Sept
b) 16 October
c) 16 Sept
d) 22 April(1 marks) 9 Contribution of carbon dioxide to global warming from industries
a) 50%
b) 24%
c) 25%
d)75%(1 marks)