1. What is the recommended dwell time for a disinfectant to be effective
on hard, non-porous surfaces?
 A) 1-2 minutes
 B) 3-5 minutes
 C) 10 minutes
 D) 15 minutes
 Answer: B) 3-5 minutes
 Rationale: The EPA recommends a dwell time of 3-5 minutes for
disinfectants to effectively kill germs on hard, non-porous surfaces.
2. Which of the following is NOT a factor in the effectiveness of a
sanitizing agent?
 A) Concentration of the solution
 B) Duration of exposure
 C) Temperature of the solution
 D) Color of the solution
 Answer: D) Color of the solution
 Rationale: The color of a sanitizing solution does not affect its
effectiveness. The key factors are the concentration, duration of exposure,
and temperature.
3. When performing non-disaster restoration, which of the following
would be considered a routine maintenance task?
 A) Repairing water damage
 B) Cleaning air ducts
 C) Removing mold
 D) Replacing damaged flooring
 Answer: B) Cleaning air ducts
 Rationale: Cleaning air ducts is a routine maintenance task that helps
maintain indoor air quality and is part of non-disaster restoration services.
4. In the context of interior cleaning, what does the term 'microfiber' refer
to?
 A) A type of fine, synthetic yarn
 B) A small, handheld vacuum cleaner
 C) A microorganism-based cleaning agent
 D) A certification standard for sanitizers
 Answer: A) A type of fine, synthetic yarn