How long will the self-contained air support for totally enclosed lifeboats last?

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Multiple Choice

How long will the self-contained air support for totally enclosed lifeboats last?

Self-contained air supply in totally enclosed lifeboats is there to provide breathable air for a short, critical period when external air isn’t available—such as if the boat is sealed off by flooding or smoke. The 10-minute duration is chosen because it gives enough time for crew to stay conscious, operate necessary equipment, assess surroundings, and reach a safe exit or be rescued, without making the system overly heavy or complex. Shorter air would be risky during urgent situations, while longer air would require bigger, more cumbersome gear with limited added benefit in typical rescue scenarios. So, 10 minutes is the standard operating duration.

Self-contained air supply in totally enclosed lifeboats is there to provide breathable air for a short, critical period when external air isn’t available—such as if the boat is sealed off by flooding or smoke. The 10-minute duration is chosen because it gives enough time for crew to stay conscious, operate necessary equipment, assess surroundings, and reach a safe exit or be rescued, without making the system overly heavy or complex. Shorter air would be risky during urgent situations, while longer air would require bigger, more cumbersome gear with limited added benefit in typical rescue scenarios. So, 10 minutes is the standard operating duration.

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