📢 Q. An enclosed lifeboat is fitted with self contained air support system, with the engine running what is the minimum period of time the air should remain safe and breathable.

The correct answer is B, '10 minutes.' Enclosed lifeboats equipped with self-contained air support systems are required to provide breathable air for at least 10 minutes while the engine is running. This ensures that even if the engine generates fumes or if there is smoke or fire, the air inside the lifeboat remains safe and breathable for a sufficient period of time.

The 10-minute duration is designed to give enough time for individuals inside the lifeboat to await rescue or ensure they are not exposed to harmful gases. It is a critical safety measure in maritime emergencies.

• The air support system provides vital oxygen in emergencies.
• The 10-minute duration prevents suffocation in enclosed spaces.
• The system helps filter harmful gases and fumes from the engine.
• This regulation is part of international maritime safety standards.
• Lifeboats must be equipped with reliable air support for emergencies.