ENV SP Resource Allocation & Materials 1 — Questions and Answers
Question 1: What does lifecycle assessment (LCA) evaluate in the Envision framework?
- The environmental impacts of a project from raw material extraction through end of life (Correct answer)
- Only the construction phase costs and impacts
- The expected lifespan of the structure in years
- Employee lifecycle from hiring to retirement
Correct answer: The environmental impacts of a project from raw material extraction through end of life
Lifecycle assessment evaluates all environmental impacts across a project's entire lifecycle: material extraction, manufacturing, construction, operation, maintenance, and end-of-life disposal or recycling.
Question 2: How does Envision encourage the use of recycled materials in infrastructure projects?
- By awarding credits for using recycled and locally sourced materials that reduce virgin resource consumption (Correct answer)
- By requiring 100% recycled materials in all projects
- By penalizing projects that use any new materials
- Envision does not address material selection
Correct answer: By awarding credits for using recycled and locally sourced materials that reduce virgin resource consumption
Envision awards sustainability credits for incorporating recycled, reused, and locally sourced materials, reducing the demand for virgin resources and minimizing transportation impacts.
Question 3: What is 'net-zero energy' as applied to infrastructure in Envision?
- A project that produces as much renewable energy as it consumes over its operational lifetime (Correct answer)
- A project that uses no energy at all during construction
- A project with zero upfront construction costs
- A project that eliminates all lighting and electrical systems
Correct answer: A project that produces as much renewable energy as it consumes over its operational lifetime
Net-zero energy means the project's renewable energy generation equals or exceeds its total energy consumption over its operational period, resulting in no net energy draw from the grid.
Question 4: Why does Envision emphasize reducing potable water consumption in infrastructure?
- Potable water is a finite resource and reducing its use conserves supply for drinking and essential needs (Correct answer)
- It only matters in desert climates
- Reducing water use increases project costs with no benefit
- Envision does not address water consumption
Correct answer: Potable water is a finite resource and reducing its use conserves supply for drinking and essential needs
Envision promotes reducing potable water use because treating water to drinking standards requires significant energy and resources, and conserving it preserves this finite resource for essential human needs.
Question 5: What is the Envision approach to waste management during construction?
- Minimize waste generation, maximize diversion from landfills through recycling and reuse (Correct answer)
- Dispose of all waste in the nearest landfill for convenience
- Waste management is not covered in the Envision framework
- Burn all construction waste on-site to reduce volume
Correct answer: Minimize waste generation, maximize diversion from landfills through recycling and reuse
Envision promotes construction waste reduction at the source, diverting materials from landfills through recycling, reuse, and repurposing, and tracking waste metrics.
Question 6: How does Envision define 'sustainable procurement'?
- Selecting materials and services that minimize environmental impact and support responsible supply chains (Correct answer)
- Buying the cheapest materials available regardless of source
- Only purchasing from local vendors within a 5-mile radius
- Avoiding all procurement to reduce environmental impact
Correct answer: Selecting materials and services that minimize environmental impact and support responsible supply chains
Sustainable procurement involves evaluating suppliers and materials based on environmental and social criteria, including responsible sourcing, reduced environmental impact, and ethical supply chain practices.
ENV SP Resource Allocation & Materials 1
What does lifecycle assessment (LCA) evaluate in the Envision framework?