1.Walk me through how you set up a full containment for a ceiling removal.
Why they ask
It's the fastest way to tell whether you've actually built one or only worked inside one.
How to answer
- Start with shutting down and sealing the HVAC and isolating electrical with the building's people
- Pre-clean, then critical barriers on openings, then poly on floors and walls in the right layers
- Place the decon unit and negative air machines, then confirm pressure with a manometer before work
- Mention smoke testing the enclosure and posting warning signs at entry

