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Environmental Studies Questions and Answers for Competitive Exams | Environmental Studies Quiz Set 6

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Free Download as PDF Environmental Studies Quiz Questions and Answers for Competitive Exams or solved MCQs with answers. These quiz objective questions are helpful for competitive exams SSC, UPSC, IAS, IPS, CDS, NDA, Railways or RRB, psc exams of Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Orissa, Punjab, Rajasthan, Sikkim, Tamil Nadu, Tripura, Uttar Pradesh, West Bengal, Chhattisgarh, Uttarakhand, Jharkhand, Telangana etc.
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(1) Bio-oil can be obtained from lignocellulose by
(1) Combustion
(2) Fast pyrolysis
(3) Gasification
(4) Transesterification
Answer: Fast pyrolysis
(2) The energy released during combustion of methane is ~ 900 kJ/mol. The carbon intensity of methane is
(1) ~ 0.05 gram C/kJ
(2) ~ 0.013 gram C/kJ
(3) ~ 0.018 gram C/kJ
(4) ~ 1.08 gram C/kJ
Answer: ~ 0.013 gram C/kJ

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(3) The term B10 implies
(1) Blending of 10 percent biodiesel with 90 percent conventional diesel.
(2) Blending of 90 percent biodiesel with 10 percent conventional diesel.
(3) Blending of 50 percent biodiesel with 50 percent conventional diesel.
(4) Blending of 1 percent biodiesel with 10 percent conventional diesel.
Answer: Blending of 10 percent biodiesel with 90 percent conventional diesel.
(4) The validity period of Environmental Clerance after Environmental Impact Assessment is least for
(1) Mining projects
(2) River valley projects
(3) Harbour projects
(4) Area development projects
Answer: Area development projects
(5) In Environmental assessment study, interpretation and evaluation should consider
(1) Uncertainty of possible impacts
(2) Significance of measured impacts
(3) Comparison of alternatives
(4) All of the above
Answer: All of the above
(6) Who are responsible for the public consultation process of EIA ?
(1) State Pollution Control Board
(2) State Pollution Control Board and District Collector
(3) State Pollution Control Board and CPCB Chairman
(4) State Pollution Control Board and Civil Society
Answer: State Pollution Control Board and District Collector
(7) Which statement is not correct for hazardous wastes ?
(1) They contain one or more of 39 toxic compounds
(2) They catch fire easily
(3) They are nonreactive and stable
(4) They are capable of corroding metal containers
Answer: They are nonreactive and stable
(8) Right to clean environment is guaranteed in Indian Constitution by
(1) Article 14
(2) Article 19
(3) Article 21
(4) Article 25
Answer: Article 21
(9) National Ambient Air Quality Standards for major pollutants were notified by CPCB in
(1) 1994
(2) 1984
(3) 2004
(4) 1974
Answer: 1994
(10) Public Liability Insurance Act came into existence in the year
(1) 1986
(2) 1989
(3) 1991
(4) 1995
Answer: 1991
(11) The population of an urban area increased from 5 million to 15 million over a period of 50 years. If the growth of population has been exponential at a constant rate over this period, the growth rate is
(1) ~ 0.693 %
(2) ~ 1.2 %
(3) ~ 1.38 %
(4) ~ 2.2 %
Answer: ~ 2.2 %
(12) A random sample of size 26 has a mean of 20. The sum of squares of the deviations taken from the mean is 200. If the population mean is 18, what is the value of t-statistic ?
(1) ~ 0.9
(2) ~ 2.1
(3) ~ 3.6
(4) ~ 5.2
Answer: ~ 3.6
(13) In Y-shaped energy flow model, one arm represents herbivore and the other
(1) Carnivore
(2) Decomposer
(3) Omnivore
(4) Secondary consumer
Answer: Decomposer
(14) A change in a population’s gene pool over time is called
(1) Microevolution
(2) Macroevolution
(3) Chemical evolution
(4) Inorganic evolution
Answer: Microevolution
(15) The scale length of variation of pressure in vertical direction in atmosphere is
(1) ~ 2.5 km
(2) ~ 5 km
(3) ~ 7 km
(4) ~ 8.5 km
Answer: ~ 7 km

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