WorksheetsCHE 423 LCA Quiz
Total questions: 10
Worksheet time: 2mins
What is the primary purpose of a Life Cycle Assessment (LCA)?
A. Reduce product cost
B. Measure energy efficiency
C. Quantify environmental impacts throughout a product's life
D. Increase product sales
What does “cradle to grave” mean in the context of LCA?
A. From manufacturing to retail
B. From design to consumer use
C. From raw material extraction to end-of-life disposal
D. From product development to customer feedback
What is the first phase of the LCA methodology according to ISO 14040?
A. Inventory analysis
B. Goal and scope definition
C. Impact assessment
D. Interpretation
What rule was used to exclude components from the inventory in the LCA?
A. Items below 5% in cost
B. Items below 1% of total impact, not exceeding 5% in total
C. Items under 10g in weight
D. Items not included in Dyson’s bill of materials
What is “open loop” recycling?
A. Recycling within the same factory
B. Recycling a product back into itself
C. Recycling a product into a different product category
D. A failed recycling process
Which database was used to map material impacts in the study?
A. GaBi
B. GREET
C. SimaPro
D. ecoinvent
What does the classification step in impact assessment involve?
A. Ranking product cost
B. Assigning environmental impact categories to emissions
C. Listing transport routes
D. Comparing brand reputation
What is the purpose of characterization in LCA?
A. Assess user experience
B. Assign financial values to products
C. Quantify emissions in common impact units (e.g., CO₂e)
D. Predict market success
Which of the following is NOT a true environmental impact category?
A. Global Warming Potential
B. Cumulative Energy Demand
C. Human Health Impact
D. Ecosystem Quality
Why did the researchers perform Monte Carlo simulations?
A. To predict market demand
B. To simulate drying times in bathrooms
C. To account for uncertainty in multiple input variables
D. To test legal claims about hand dryers
