PADI Divemaster Certification Practice Exam

When deep diving, why is it advisable to have spare weights and a spare cylinder with regulator at 5 metres/15 feet?

1. For emergencies

2. To comply with regulations

3. It's an unnecessary precaution

4. To avoid equipment failure

The correct answer is: For emergencies

Having spare weights and a spare cylinder with regulator at a shallow depth like 5 metres/15 feet during deep diving is fundamentally about ensuring safety in emergencies. In the event of an unforeseen situation, such as equipment failure or an unplanned ascent, these spare items can provide a crucial backup that enhances a diver's safety. The spare weights can assist in managing buoyancy control effectively, especially if the diver loses weight or the buoyancy of their wetsuit changes due to depth or temperature. Additionally, having a spare cylinder with a regulator allows for a source of air if the primary system fails, allowing the diver to ascend safely while still having access to breathable air. Relying solely on reliance on primary equipment limits flexibility in emergency responses. Hence, the inclusion of spare equipment at the 5-metre mark acts as a lifeline, significantly reducing risk during deep dive operations.