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Environment & Ecology MCQ practice free online · page 54

Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.

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  1. 531HPSC2018Environment & EcologyEnglish

    Which of the following renewable power resources had highest installed capacity in the country?

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    Correct option: D — Wind power

  2. 532UPSC2012Environment & EcologyEnglish

    Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statement(s) is/are correct? 1. Coconut shells, groundnut shells and rice husk can be used in biomass gasification. 2. The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only. 3. The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines. Select the correct answer using the codes given below.

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    Correct option: A — Only 1

  3. 533UPSC2016Environment & EcologyEnglish

    Consider the following statements. 1. The International Solar Alliance was launched at the United Nations Climate Change Conference in 2015. 2. The Alliance includes all the member countries of the United Nations. Which of the statements given above is/are correct?

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    Correct option: A — Only 1

  4. 534UPSC2015Environment & EcologyEnglish

    Concerning ‘fuel cells’ in which hydrogen-rich fuel and oxygen are used to generate electricity. Consider the following statements. 1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as a by-product. 2. Fuel cells can be used for powering buildings and not for small devices like laptop computers. 3. Fuel cells produce electricity in the form of Alternating Current (AC). Which of the statements given above is/are correct?

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    Correct option: A — Only 1

  5. 535UPSC2003Environment & EcologyEnglish

    Assertion (A): Coal-based thermal power stations contribute to acid rain. Reason (R): Oxides of carbon are emitted when coal burns.

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    Correct option: B — Both (A) and (R) are true, but (R) is not the correct explanation of (A)

  6. 536UPSC2011Environment & EcologyEnglish

    Microbial fuel cells are considered a source of sustainable energy. Why? 1. They use living organisms as catalysts to generate electricity from certain substrates. 2. They use a variety of inorganic materials as substrates. 3. They can be installed in waste water treatment plants to cleanse water and produce electricity. Which of the statements given above is/are correct?

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    Correct option: C — 1 and 3

  7. 537UPSC2017Environment & EcologyEnglish

    It is possible to produce algae based bio-fuels, but what is/are the likely limitations of developing countries in promoting this industry? 1. Production of algae based biofuels is possible in seas only and not on continents. 2. Setting up and engineering the algae based bio-fuel production requires high level of expertise/technology until the construction is completed. 3. Economically viable production necessitates the setting up of large scale facilities which may raise ecological and social concerns. Select the correct answer using the code given below.

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    Correct option: B — Only 2 and 3

  8. 538UPSC1996Environment & EcologyEnglish

    Consider the following statements. At the present level of technology available in India, solar energy can be conveniently used to 1. Supply hot water to residential buildings. 2. Supply water for minor irrigation projects. 3. Provide street lighting. 4. Electrify a cluster of villages and small towns. Of these statements.

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    Correct option: D — 1, 2 and 3 are correct

  9. 539UPSC2010Environment & EcologyEnglish

    Other than Jatropha curcas, why is Pongamia pinata also considered a good option for the procedure of bio-diesel in India? 1. Pongamia pinata grows naturally in most of the arid regions of India. 2. The seeds of Pongamia pinata are rich in lipid content of which nearly half is oleic acid. Which of the statements given above is/are correct?

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    Correct option: C — Both 1 and 2

  10. 540UPPSC2016Environment & EcologyEnglish

    In which of the following areas of India geo-thermal energy sources have not been found?

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    Correct option: B — Ganga Delta

Environment & Ecology practice — common questions

Page 54 of this set has 10 questions on it.

Are these Environment & Ecology questions free to practise?
Yes. Every question on this page is free and needs no account. Create a free account only if you want your progress saved.
Where do these Environment & Ecology MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".