EPA Lead Abatement Methods & Techniques 1 — Questions and Answers
Question 1: Which abatement method involves completely removing lead-based paint from a surface?
- Paint removal (Correct answer)
- Encapsulation
- Enclosure
- Interim controls
Correct answer: Paint removal
Paint removal is the abatement method that physically eliminates lead-based paint from surfaces, providing a permanent solution.
Question 2: What is encapsulation in the context of lead abatement?
- Removing lead paint entirely
- Applying a durable coating that bonds to and covers lead paint (Correct answer)
- Building a barrier over lead-painted surfaces
- Chemically neutralizing lead compounds
Correct answer: Applying a durable coating that bonds to and covers lead paint
Encapsulation involves applying a specially formulated coating that bonds to lead-based paint to prevent lead dust and chips from being released.
Question 3: Which abatement method installs rigid materials such as drywall or paneling over lead-painted surfaces?
- Encapsulation
- Chemical stripping
- Enclosure (Correct answer)
- Wet scraping
Correct answer: Enclosure
Enclosure places a permanent rigid barrier over lead-painted surfaces to prevent access and exposure to the lead hazard.
Question 4: When using chemical strippers for lead paint removal, what is the primary hazard to manage?
- Fire from flammable solvents
- Fumes and skin contact with caustic agents (Correct answer)
- Electrical shock
- Structural collapse
Correct answer: Fumes and skin contact with caustic agents
Chemical strippers can release harmful fumes and cause chemical burns, requiring proper respiratory protection and chemical-resistant PPE.
Question 5: Which paint removal technique uses a heat gun or infrared device to soften lead paint before scraping?
- Chemical stripping
- Wet scraping
- Thermal methods (Correct answer)
- Mechanical grinding
Correct answer: Thermal methods
Thermal methods use heat to soften lead paint, making it easier to scrape off; however, temperatures must stay below 1,100°F to avoid generating lead fumes.
Question 6: What is the main advantage of component replacement as a lead abatement strategy?
- It is the least expensive method
- It permanently eliminates the lead hazard by removing the substrate (Correct answer)
- It requires no protective equipment
- It can be performed without a certified contractor
Correct answer: It permanently eliminates the lead hazard by removing the substrate
Component replacement removes the entire lead-painted element (e.g., a window or door), permanently eliminating the lead hazard at that location.
EPA Lead Abatement Methods & Techniques 1
Which abatement method involves completely removing lead-based paint from a surface?