Deck : Expired / Deck General - 904/199
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| 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? |
| A) 1 minute |
| B) 3 minutes |
| C) 5 minutes |
| D) 10 minutes |
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