Each ventilation system for an enclosed classified location on a MODU must provide a complete change of air every __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — 5 minutes
Title 46 CFR ventilation standards for enclosed classified hazardous locations on MODUs require mechanical ventilation systems to provide a complete change of air every 5 minutes to prevent the dangerous accumulation of flammable gas mixtures.
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