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Lesson 2: Evaluating Energy Solutions — Practice Questions

  1. 1. An engineer is reviewing notes to decide on a material for a new product. Which of the following statements represents an opinion rather than a piece of factual evidence?

    • A. Material X has a tensile strength of 400 MPa.
    • B. Material Y corrodes when exposed to salt water.
    • C. Material Z is the best-looking option.
    • D. Material W costs $15 per kilogram to source.
  2. 2. What is a likely outcome if an engineer ignores the process of gathering evidence and instead chooses a solution based on a guess?

    • A. The project is guaranteed to be finished under budget due to the faster decision.
    • B. The public's opinion of the engineering firm will automatically improve.
    • C. The chosen solution may fail to perform as needed.
    • D. The solution will work perfectly because experienced engineers have good intuition.
  3. 3. A team of engineers is tasked with designing a new public transportation system. Which of the following questions is most directly focused on gathering evidence about environmental impact?

    • A. How many passengers can the system carry per hour?
    • B. What are the estimated emissions from the proposed buses or trains?
    • C. What is the total budget allocated for the project's construction?
    • D. Will the new transit stations be aesthetically pleasing for the neighborhoods?
  4. 4. The primary goal for an engineer in gathering comprehensive evidence about all possible solutions is to ensure that the final decision is what?

    • A. The quickest one to implement
    • B. The most popular choice among politicians
    • C. Grounded in facts and data
    • D. The most expensive and technologically complex
  5. 5. According to engineering principles, what is the most critical foundation for selecting a new energy system?

    • A. The personal opinions of the engineering team
    • B. The initial cost of the available options
    • C. Comprehensive evidence gathered through investigation
    • D. The popularity of a particular energy source
  6. 6. What is the primary function shared by all energy solutions used by communities?

    • A. To store electrical power for later use.
    • B. To convert a natural form of energy into electricity.
    • C. To eliminate all environmental impacts of power generation.
    • D. To create new sources of natural energy from scratch.
  7. 7. A coastal community with strong, consistent winds is considering a wind farm. However, some residents are concerned about the visual impact on the landscape. This situation is a clear example of what?

    • A. An energy conversion failure
    • B. A community evaluating energy trade-offs
    • C. A problem that has no possible solution
    • D. The inability of wind to generate sufficient power
  8. 8. Which statement best describes the fundamental process that occurs in any power generation system?

    • A. Electrical energy is created from nothing, violating the law of conservation of energy.
    • B. One form of natural energy is transformed into electrical energy.
    • C. Natural resources are consumed without any change in their energy state.
    • D. Electricity is directly captured from the environment without any conversion process.
  9. 9. If a hypothetical energy source were discovered that had no negative impacts, was inexpensive, and was available everywhere, how would this affect the concept of "trade-offs"?

    • A. The concept of trade-offs would become more complex.
    • B. Trade-offs would shift to focus only on political factors.
    • C. The need to evaluate trade-offs for this source would be eliminated.
    • D. Trade-offs would still be necessary to decide how much energy to produce.
  10. 10. Choosing an energy solution for a community is primarily a process of:

    • A. finding the newest available technology.
    • B. copying the choice of a neighboring town.
    • C. weighing benefits against drawbacks.
    • D. selecting the cheapest possible option.