Scuba Diving International (SDI) Computer Nitrox Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What must divers avoid when planning a dive with Nitrox?

Exceeding the maximum operating depth for the specific blend

When planning a dive with Nitrox, it is crucial for divers to avoid exceeding the maximum operating depth for the specific blend of Nitrox they are using. Each Nitrox blend has a specific partial pressure of oxygen, which is a key factor in determining the maximum depth at which divers can safely operate. Going beyond this depth can lead to oxygen toxicity, which is a serious condition that can affect the central nervous system and lead to symptoms such as seizures or loss of consciousness.

Therefore, adhering to the maximum operating depth ensures that divers maintain a safe level of oxygen exposure throughout their dive, thereby minimizing the risk of decompression sickness and other diving-related injuries. Proper planning that includes awareness of these limits allows for a safer diving experience and makes it essential for all nitrox divers to be informed and cautious about their depth limits.

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Using a dive computer

Staying underwater for more than two hours

Diving without a buddy

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