Open Water Course Knowledge Review Four| Questions with Correct Answers Verified by Experts| Latest Update

Open Water Course Knowledge Review Four| Questions with Correct Answers Verified by
Experts| Latest Update
One reason it is important to be certified as PADI as a Enriched Air Diver, or under the
supervision of a PADI Enriched Air Instructor, before using enriched air nitrox is to avoid toxicity
problems. True


During a dive, I begin to have a headache, feel ill and dizzy. Are there possible symptoms of
contaminated air? Yes


To avoid contaminated air, I should have my cylinder filled only at reputable scuba air source.
True


The two primary factors that influence how much nitrogen dissolves into my body tissues
during a dive are ..... and ..... . Depth, time


If I exceed established depth and time limits while diving and then surface, bubble can form in
my body tissues, causing decompression sickness. True


After a dive, a diver has numbness, tingling, and weakness in the arms. Are there possible
signs/symptoms of DCS? Yes



Secondary factors though to contribute to DCS include - Age
- Cold
- Injuries
- Poor fitness/high body fat


A no stop dive means I can, ..... the dive, ascend directly to the surface without stopping if
necessary (although I would normally plan a safety stop). At any time during