CPI Environmental Impact Considerations 2 — Questions and Answers
Question 1: Which refrigerant classification has the LOWEST global warming potential (GWP) among modern HVAC alternatives?
- R-410A
- R-22
- R-32 (Correct answer)
- R-404A
Correct answer: R-32
R-32 has a GWP of approximately 675, significantly lower than R-410A (2088) or R-404A (3922).
Question 2: When installing solar panels on a rooftop, which environmental factor must be documented to comply with stormwater regulations?
- Panel wattage output
- Changes to impervious surface runoff (Correct answer)
- Inverter heat dissipation
- Magnetic declination of the array
Correct answer: Changes to impervious surface runoff
Adding panels can alter stormwater runoff patterns, which must be assessed under many local and federal stormwater management regulations.
Question 3: A certified installer discovers that an older building uses asbestos pipe insulation near the installation area. What is the correct first step?
- Remove the insulation yourself before proceeding
- Proceed with installation while wearing a respirator
- Stop work and notify the site supervisor or project owner (Correct answer)
- Seal the area with duct tape and continue
Correct answer: Stop work and notify the site supervisor or project owner
Asbestos abatement must be performed by licensed professionals; installers must halt work and report the hazard per OSHA and EPA regulations.
Question 4: Which of the following best describes the purpose of an Environmental Management System (EMS)?
- A software tool for scheduling HVAC maintenance
- A framework for managing an organization's environmental responsibilities (Correct answer)
- A federal database tracking refrigerant sales
- A checklist for inspecting electrical panels
Correct answer: A framework for managing an organization's environmental responsibilities
An EMS, such as ISO 14001, provides a structured framework organizations use to monitor, control, and improve their environmental performance.
Question 5: What does the term 'embodied carbon' refer to in the context of building installations?
- CO₂ emissions from HVAC combustion during building operation
- Greenhouse gas emissions from manufacturing, transporting, and installing materials (Correct answer)
- Carbon stored inside concrete structural members
- CO₂ released during building demolition only
Correct answer: Greenhouse gas emissions from manufacturing, transporting, and installing materials
Embodied carbon encompasses all lifecycle greenhouse gas emissions associated with building materials from extraction through installation, excluding operational energy use.
Question 6: Which federal agency administers the Toxic Substances Control Act (TSCA), which can affect installer handling of certain chemical products?
- OSHA
- DOT
- EPA (Correct answer)
- CPSC
Correct answer: EPA
The EPA administers TSCA, which regulates the manufacture, import, processing, distribution, use, and disposal of chemical substances including many used in installations.
Question 7: During exterior LED lighting installation, which environmental consideration relates specifically to wildlife protection?
- Minimizing electromagnetic interference
- Reducing light pollution through shielding and appropriate color temperature (Correct answer)
- Ensuring the fixtures are UL listed
- Using copper instead of aluminum wiring
Correct answer: Reducing light pollution through shielding and appropriate color temperature
Properly shielded fixtures and warm color temperatures (below 3000K) reduce light pollution that disrupts nocturnal wildlife behavior and migratory bird patterns.
CPI Environmental Impact Considerations 2
Which refrigerant classification has the LOWEST global warming potential (GWP) among modern HVAC alternatives?