Vehicle Lifecycle Accounting Overview
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Questions and Answers

What percentage of the total lifetime energy use and greenhouse gas emissions of a vehicle is accounted for by the well-to-tank phase?

  • 15% (correct)
  • 75%
  • 90%
  • 10%
  • Which of the following is NOT one of the three phases of vehicle operation mentioned in the text?

  • Tank-to-wheels
  • Well-to-tank
  • Cradle-to-grave
  • Cradle-to-gate (correct)
  • What is the approximate percentage of the total lifetime energy use and greenhouse gas emissions that is accounted for by the tank-to-wheels phase?

  • 15%
  • 10%
  • 90%
  • 75% (correct)
  • What is the approximate percentage of the total lifetime energy use and greenhouse gas emissions that is accounted for by the cradle-to-grave phase?

    <p>10%</p> Signup and view all the answers

    By investing more money in improving existing light-duty vehicle technology, how much can fuel consumption be reduced over the next 20 years?

    <p>33%</p> Signup and view all the answers

    What is the estimated cost range per vehicle for the improvements in existing light-duty vehicle technology that can reduce fuel consumption by about one third over the next 20 years?

    <p>$500 to $1,000</p> Signup and view all the answers

    What is the primary reason for the shift to larger, more powerful vehicles?

    <p>Consumer preference for increased performance and size</p> Signup and view all the answers

    What is the main challenge in developing alternative fuels to displace petroleum?

    <p>Compatibility with the existing fuel distribution system</p> Signup and view all the answers

    What is the primary environmental concern with the use of nonconventional petroleum sources?

    <p>Increased greenhouse gas emissions from the processing required</p> Signup and view all the answers

    What is the projected trajectory for petroleum demand in the developed world in the next 15-20 years?

    <p>Leveling off at about 20% above current demand</p> Signup and view all the answers

    What is the main drawback of using hydrogen or electricity as alternative propulsion systems?

    <p>Reduced energy density compared to liquid fuels</p> Signup and view all the answers

    What is the main strategy proposed in the text to slow the rate of petroleum demand growth in the developed world?

    <p>Reducing the performance and horsepower of vehicles</p> Signup and view all the answers

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