Parisutham Institute of Technology & Science, Thanjavur.
TECHNICAL QUIZ
GE2021 – Environmental Science and Engineering
1. Which of the following is not a measure of biodiversity?
(a) Economic diversity
(b) Ecosystem diversity (c) Genetic diversity (d) Species diversity (e)
Species richness
2. Which of the following countries has the highest biodiversity?
a. Brazil, b. South Africa, c. Russia, d. India
3. Which of the following is not a cause for loss of biodiversity?
a. Destruction of habitat, b. Invasion by alien species, c. keeping animals
in zoological parks, d. Over-exploitation of natural resources
4. The active chemical drug reserving is obtained from:
a. Datura, b. Rauwolfia, c. Atropa, d. Papaver
5. Which of the following group of plants exhibit more species
diversity?
a. Angiosperms, b. Algae, c. Bryophytes, d. Fungi
6. Amongst the animal groups given below, which one has the highest
percentage of endangered species?
a. Insects, b. Mammals, c. Amphibians, d. Reptiles
7. Which one of the following is an endangered plant species of India?
a. Rauwolfia serpentina, b. Santalum album (Sandal wood)
c. Cycas beddonei, d. All of them
8. Which of the following are biodegradable waste products?
a. rubber, plastic, manure, b. metal, glass, plastic, c. vegetable peels,
garden refuse, paper, d. glass, wood cuttings, batteries
9. The main cause of water pollution is:
a. untreated sewage, glass bottles and plastic bags, b. chemical effluent,
leaching of pesticides and algae, c. pesticides, treated sewage and litter,
d. oil spills, untreated sewage and chemical effluent
10. Typhoid, cholera and dysentery are diseases that are spread by:
a. air pollution, b. water pollution, c. land/soil pollution, d. the use of
pesticides
11. Non-biodegradable means:
a. A substance that cannot decompose naturally, b. A substance that is
thrown away as kitchen refuse, c. A substance that costs too much to
recycle, d. A substance that will not dissolve in water.
12. One solution to reduce air pollution may be…
a. the use of leaded petrol, b. the burning of wood and coal, c. the use of
public transport, d. causing veld fires
13. One of the following has a positive human influence on the
environment.
a. Deforestation, b. Overpopulation, c. Pollution, d. Conservation
14.The following are all sources of pollution:
i) Solid waste, ii) Pesticides, iii) Sewage, iv) Fertilisers
Which of the following combinations contains sources of soil pollution?
a. (i), (ii) and (iii), b. (ii), (iii), (iv), c. (i), (ii), (iii) and (iv),d. (ii) and (iv)
15.Which gas of following is found highest by volume in air?
a.Nitrogen, b.Oxygen, c.Ozone, d.Methane
16.Incomplete burning of petrol or diesel in vehicles creates ……….
Gas which is very poisonous
a. carbondioxide, b. carbon monoxide, c. methane, d. Ozone
17. Combustion of coal in power plant produces mainly ………..whcih
is a major pollutant of air
a. SO2, b. NO2, c. CH4, d. CCl4
18. Which gas is responsible for depletion of Ozone layer around earth
which protectsus from harmful ultraviolet rays?
a.CCl4, b. N2, c.O2, d. NO2
19. Which gas is primarily responsible for Green House effect i.e global
warming?
a. Hydrogen Dioxide, b. CO2, c. CCl4, d. SO2
20. The disease Cholera, Typhoid and Jaundice are due to pollution of
a. Water, b. Air, c. Food items, d. All the above
21. Air pollutant is severe in
a. Cities, b. industrialized area, c. densely populated area, d. All the
above
22. Carbon monoxide is a pollutant because
a. It reacts with o2, b. It reacts with Hemoglobin, c. Make nervous system
inactive, d. It inhibits glycol sis
23. The supersonic jets cause pollution by the thinning of
a. CO2 layer, b.SO2 layer, c.O3 layer, d.O2 layer
24. The true statement about green house effect is that it is
a. Caused by combustion of many gases, b. Caused by CO2, CCl4, CH4
and NO2 gases, c. Caused by CO2, d. None of these
25. Which of the following is the secondary pollution?
a. CO2, b.SO2, c..CO, d. O3
26. Find organic or inorganic particles suspended in air is called
A. Aerosol, B. Gaseous pollutant, C. Particulate pollutant, D. None of
these
27. All the particulate pollutant is
A. Dust, B. Ozone, c. Smoke, D. Soot
28. Do you thing distilled water is good as drinking water?
a. Yes, distilled water doesn’t contain germs; b. Water loses many good minerals
during evaporation, c. Both A and B are true, d. Yes, contain bacteria’s
29.Do you think we can make use of rain water?
a. Yes, rain water can be used after filtration and chlorination, b. No,
rain water cannot be used as it is salty water, c. No, dirt can't be
separated from rain water, d. No, after filtration also some germs
30. Can we drink water from dirty pond after sedimentation and
filtration?
a. Yes, obviously, b. Yes, filtration would be enough
c. No, these processes dones't remove germs from the water
d. Yes, they can remove germs from the water
31. Does addition of chemicals in water always cause water pollution?
a. Yes, chemicals always cause water pollution
b. No, some chemicals added to water are useful
c. No, chemicals don't cause water pollution, d. Both of them
32.The maximum desirable limits (BIS) of total hardness (as CaCO3) in
drinking water
a. 600 ppm, b. 300 ppm, c. 1000 ppm, d. 500 ppm
33. Conventional tertiary treatment is
a. Chemical coagulation and flocculation, b. Filtration, c. Sedimentation
d. None of these
34.The chemical oxygen demand (COD) measure the .......
a. Amount of oxygen required for growth of micro organisms in water
b. Amount of O2 that would be removed from the H2O in order to oxidize
pollution, c. Amount of O2 required oxidizing the Ca present in waste water,
d. None of the above.
35.Zeolite softening process removes
a. Only temporary hardness of water,b. Only permanent hardness of water, c.
Both temporary and permanent hardness of water
d. The dissolved gases in permanent hard water
36.Secondary treatment use ................. to consume wastes.
a. Micro – organisms, b. Chemicals, c. Filtration, d. None of these
37.Which of the following chemicals is sometime added in the process of
coagulation and flocculation
a. Aluminum oxide, b. Aluminum Sulphate, c. CaCl2, d. None of these
38.Which of the following are biodegradable waste products
a. Rubber, Plastics, Manure, b. Metal, Glass, c. Wood cuttings, Batteries
d. Vegetables peels, Garden refuse, paper
39.The following are all sources of pollution.
i) Solid waste ii) Pesticides iii) Sewage iv) Fertilizers
Which of the following combinations contains source of soil pollution
a. (i), (ii) and (iii), b. (ii), (iii) and (iv), c. (i), (ii), (iii) and (iv),d. (ii) and (iv)
40.Of the following, the most ecologically responsible way to dispose of
sewage sludge is
a. incineration, b. dumping into the deep trenches of the ocean
c. conventional landfills., d. treating with heat to kill harmful bacteria,
removal of toxic metals, and using as fertilizer.
41. Which of the following substances are removed to the greatest extent by
combined primary and secondary wastewater treatment?
a. organic pesticides, b. organic oxygen-demanding wastes, c. toxic metals
and synthetic organic chemicals, d. radioactive isotopes
42. Farmers can reduce pesticide runoff by
a. applying pesticides only when needed, b. using biological methods of
pest control, c. control runoff, d. All of these answers.
43. Water pollution from oil can be prevented by
a. instituting a national energy policy based on decreased reliance on
fossil fuels, b. prohibiting oil drilling in ecologically sensitive areas.
c. requiring double hulls on oil tankers, d. All of these answers.
44. The leading nonpoint source of water pollution is
a. municipal landfills, b. runoff from city streets and storm sewers.
c. agriculture, d. industrial wastes.
45. Farmers can sharply reduce fertilizer runoff by
a. using prescribed amounts of fertilizer, b. planting nitrogen-fixing
plants, c. planting buffer zones between cultivated fields and surface water.
d. All of these answers.
46.The majority of the oil pollution of the ocean comes from
a. blowouts (rupture of a borehole of an oil rig in the ocean), b. tanker accidents.
c. environmental terrorism, d. runoff from land.
47. The effects of an oil spill depend on the
a. time of year, b. type of oil (crude or refined), c. distance of release from shore.
d.All of these answers.
48. The most common problem encountered by seabirds coated with oil is
a. immediate death, b. vulnerability to predators, c. loss of buoyancy and
insulation, causing deaths from exposure,d. poisoning by taking in the oil
internally.
49. Most irrigation systems lose about half of their water to
a. runoff, b. evaporation, c. seepage, d. b and c.
50. The major types of flora and fauna found in aquatic ecosystems are determined
primarily by
a. temperature, b. salinity, c. pH, d. light
51.Where is most of the marine biodiversity found?
a. deep ocean floor, b. salt flats, c. coral reefs,d. tide pools
52. A mechanical means of treating industrial effluents:
(a) sedimentation, (b) rainwater harvesting, (c) recycling of waste water
(d) biologically
53. Smoke emitted by chemical and paper factories, refineries, etc. can be reduced
by using:
(a) coal, (b) oil, (c) gas, (d) either (b) or (c)
54. When does thermal pollution take place?
(a) Sun heats up the lakes and ponds, (b) Hot water from factories drains into rivers
and ponds, (c) When hot oil drains into rivers and lakes, (d) None of these
55.Air pollution is caused because of the high proportion of undesirable gases such
as:
(a) methane, (b) hydrogen, (c) sulphur dioxide, (d) carbon
ANSWERS:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
A
C
B
D
C
D
C
D
B
A
C
D
C
A
B
B
A
B
A
Staff Incharge:
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
D
B
C
B
D
A
B
C
A
C
B
B
A
B
C
A
B
D
C
D
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
B
D
D
C
D
D
D
C
C
D
C
A
D
B
C
H.O.D Sign
56. What percentage of the earth's atmosphere does O2 comprise?
a. 75%
b. 50%
c. 21%
d. 32%
57. Global climate change is being attributed to the atmospheric increase
in what two gases produced by human activities?
a. oxygen and hydrogen
b.ozone and methane
c. nitrous oxide and sulfur dioxide
d.methane and carbon dioxide
58. Which of the following is an igneous rock?
a. Granite
b. Shale
c. Coal
d. Slate
59. Which of the following materials is the hardest?
a.calcite
b. silicon carbide
c. topaz
d.quartz
60.Certain substances are classified as water pollutants, others as air
pollutants and still others as land pollutants. Which of the following pollutes all three parts of our
environment?
a. fluorocarbons
b. smog
c.acid rain
d. ozone
61. Which of the following place is unlikely to be affected by a cyclone
a. Chennai
b. Mangalore
c. Amritsar
d. Pune
62. Tornadoes, although erratic in their pathways, are always characterized by ………….
pressure
a. Low
b. High
c. Constantly variable
d.Devaporized
63.Relative humidity is “relative” to ……….
a. Temperature
b. Moisture
c. Vapour pressure
d. Evapouration
64. The greatest annual number of halistorms can be found in
a. Florida
b.California
c. Hawaii
d. Texas
65. …………. And ………….. both occur at night
a. Sea breeze and land breeze
b. Sea breeze and Mountain breeze
c. Mountain and land breeze
d. Land and valley breeze