Post-Cleaning Verification and Testing Flashcards
7 cards from real ASCS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Post-Cleaning Verification and Testing flashcards as text
Which instrument is commonly used to detect and quantify airborne particulate matter during post-cleaning air quality verification?
Answer: Particle counter
A particle counter measures airborne particles by size and concentration, making it the appropriate tool for verifying air quality improvement after cleaning.
In HVAC post-cleaning verification, what does 'source removal' confirmation verify?
Answer: That contaminants have been physically extracted from the HVAC system
Source removal verification confirms that contaminants have been physically extracted and removed from the HVAC system, not just displaced or encapsulated.
A third-party post-cleaning inspection is performed by whom?
Answer: An independent inspector not affiliated with the cleaning contractor
A third-party inspection is conducted by an independent inspector with no affiliation to the cleaning contractor, ensuring an unbiased assessment.
What type of camera is most effective for detailed visual inspection of interior ductwork surfaces after cleaning?
Answer: Video borescope or robotic inspection camera
A video borescope or robotic inspection camera allows direct visual inspection of interior duct surfaces that cannot be accessed by a technician.
How does a post-cleaning particle count comparison typically work?
Answer: Particle counts are taken before cleaning begins and after to demonstrate improvement
Pre- and post-cleaning particle counts are taken and compared to demonstrate the quantifiable improvement achieved by the cleaning process.
Which of the following is NOT a typical component of post-cleaning verification documentation?
Answer: Customer's personal financial information
Customer financial information is not relevant to post-cleaning verification and has no place in a cleaning completion report.
When verifying that an air handling unit (AHU) has been properly cleaned, which components should an ASCS technician inspect?
Answer: Coils, drain pans, blower section, and accessible interior surfaces
Coils, drain pans, blower section, and interior surfaces are the primary AHU components that accumulate contamination and must be verified as clean.