Space Exploration and Biogas Introduction
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Questions and Answers

What is the primary use of liquid hydrogen in space exploration?

  • As rocket fuel in combination with liquid oxygen (correct)
  • For lighting streetlamps
  • To convert sewage into biogas
  • As a source of renewable energy
  • When did India and China start developing small-scale biogas digesters for farmers?

  • 1960s (correct)
  • Late 18th Century
  • 1898
  • 17th Century
  • Who identified methane as the flammable gas produced during the decomposition of organic matter?

  • Bombay
  • Jan Baptise van Helmont
  • John Dalton (correct)
  • Humphrey Davy
  • What prompted renewed interest in biogas systems in the early 21st Century?

    <p>Rising fossil fuel prices</p> Signup and view all the answers

    Which century saw the establishment of the first significant anaerobic digestion plant in Bombay?

    <p>1859</p> Signup and view all the answers

    Why is liquid hydrogen utilized in combination with liquid oxygen for launch vehicles?

    <p>As rocket fuel for launch vehicles</p> Signup and view all the answers

    What are the main components of biomass found in wood, crop residues, and organic waste?

    <p>Cellulose, Hemicellulose, Lignin</p> Signup and view all the answers

    Which method is NOT a thermochemical conversion process used for biomass?

    <p>Fermentation</p> Signup and view all the answers

    What is the primary source of energy for activities like cooking and space heating in many parts of the world?

    <p>Wood and agricultural products</p> Signup and view all the answers

    Which of the following is NOT a synonym for biomass briquettes?

    <p>Energy bricks</p> Signup and view all the answers

    What type of energy applications can be achieved by utilizing biomass?

    <p>Renewable energy and waste reduction</p> Signup and view all the answers

    Algae mainly consist of which components useful for energy production?

    <p>Carbohydrates, Lipids, Proteins</p> Signup and view all the answers

    What is the heating value of a briquette made from pure charcoal particles?

    <p>24.9 MJ/kg</p> Signup and view all the answers

    Which organic material is NOT commonly used in biomass briquettes?

    <p>Plastic waste</p> Signup and view all the answers

    What is the ash content of a briquette made from pure charcoal particles?

    <p>6.0%</p> Signup and view all the answers

    What are the carbon, hydrogen, and oxygen contents of a briquette made from pure charcoal particles?

    <p>Carbon: 49.5%, Hydrogen: 5.1%, Oxygen: 40.2%</p> Signup and view all the answers

    Which type of waste was NOT mentioned as a source for biomass briquettes?

    <p>Paper waste</p> Signup and view all the answers

    What is the purpose of industrial briquetting machines?

    <p>To create compact and sustainable fuel sources</p> Signup and view all the answers

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