Cargo pumprooms on tank vessels, constructed in 1965, handling grade C liquid cargo shall have power ventilation systems. What is time requirement for these ventillation systems to completely change the air?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 3 minutes
Cargo pumprooms on tank vessels built in 1965 handling Grade C liquids require power ventilation systems designed to completely change the air volume within a maximum of 3 minutes per 46 CFR.
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