12 Questions
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%
Which of the following is NOT one of the three phases of vehicle operation mentioned in the text?
Cradle-to-gate
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?
75%
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?
10%
By investing more money in improving existing light-duty vehicle technology, how much can fuel consumption be reduced over the next 20 years?
33%
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?
$500 to $1,000
What is the primary reason for the shift to larger, more powerful vehicles?
Consumer preference for increased performance and size
What is the main challenge in developing alternative fuels to displace petroleum?
Compatibility with the existing fuel distribution system
What is the primary environmental concern with the use of nonconventional petroleum sources?
Increased greenhouse gas emissions from the processing required
What is the projected trajectory for petroleum demand in the developed world in the next 15-20 years?
Leveling off at about 20% above current demand
What is the main drawback of using hydrogen or electricity as alternative propulsion systems?
Reduced energy density compared to liquid fuels
What is the main strategy proposed in the text to slow the rate of petroleum demand growth in the developed world?
Reducing the performance and horsepower of vehicles
Learn about the three phases of vehicle operation: well-to-tank, tank-to-wheels, and cradle-to-grave. Understand the energy consumption and greenhouse gas emissions involved in producing, distributing, driving, maintaining, and disposing of a vehicle over its lifetime.
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