Risk Management & Mitigation 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 Risk Management & Mitigation flashcards as text
Which term describes the process of transferring financial risk associated with an HVAC cleaning project to an insurance company or another party?
Answer: Risk transfer
Risk transfer shifts the financial burden of a potential loss to another party, most commonly through insurance or contractual indemnification clauses.
A pre-cleaning inspection reveals damaged fiberglass duct liner inside a large commercial air handling unit. The PRIMARY risk associated with disturbing this material during cleaning is:
Answer: Release of respirable glass fibers into the airstream and work environment
Damaged fiberglass liner releases respirable glass fibers that can cause respiratory irritation and potential long-term lung damage if inhaled.
When establishing a containment zone for HVAC cleaning in an occupied building, which measure BEST prevents pressure differentials from pushing contaminants into unaffected areas?
Answer: Placing a negative air machine inside the containment zone exhausting to the outside
A negative air machine creates lower pressure inside the containment zone, ensuring airflow moves inward rather than outward, preventing contaminant migration.
After completing HVAC cleaning in a sensitive environment, which verification step BEST confirms that risk mitigation was effective?
Answer: Post-cleaning air quality testing and visual inspection of cleaned surfaces
Post-cleaning air quality testing and visual inspection objectively verify that contaminants have been removed and the environment is safe, not just that work was performed.
Which scenario represents a 'near miss' in the context of HVAC cleaning risk management?
Answer: A worker slips on a wet floor but catches themselves on a ladder without injury
A near miss is an unplanned event that did not result in injury but had the potential to, and must be documented and investigated to prevent future incidents.
Which NADCA standard section specifically addresses the requirement to contain and control the spread of contaminants during HVAC cleaning?
Answer: ACR 2021 Section 6 — Source Removal Cleaning Procedures and Containment
ACR 2021 Section 6 outlines source removal procedures and the containment requirements that prevent contaminant spread during active cleaning.
A risk management plan for an HVAC cleaning project should be reviewed and updated when:
Answer: Unexpected site conditions are discovered that were not identified during the initial assessment
Unexpected site conditions represent new or changed hazards that invalidate the original risk assessment, requiring the plan to be revised before work continues.