SDI Open Water Scuba Diver Practice Exam 2025 – Complete Test Prep

Question: 1 / 400

What does the term "no-decompression dive" mean?

A dive requiring multiple ascent stops

A dive that allows safe ascent without a decompression stop

The term "no-decompression dive" refers to a dive that allows a diver to ascend to the surface without the need for mandatory decompression stops. During such a dive, the diver remains within established depth and time limits, which prevents the accumulation of excess nitrogen in the body. As a result, the diver can safely return to the surface directly, reducing the risk of decompression sickness.

This concept is essential for divers to understand, as it indicates that they can complete the dive within a prescribed limit and return without the complex procedures that accompany deeper or longer dives where decompression stops are necessary. Understanding no-decompression limits is critical for safe diving practices and planning dives to ensure diver safety and health.

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A dive at shallow depths

A dive with increased air pressure

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