PADI - Enriched Air Diver Review exam with answers.

PADI - Enriched Air Diver Review exam |\ |\ |\ |\ |\ |\ |\




with answers |\




The primary benefit of using enriched air nitrox is that it -
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CORRECT ANSWERS ✔✔The primary benefit of using enriched air
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is longer no stop (no decompression) dive times. It is not a
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suitable deep diving gas due to oxygen exposure, and there is no
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substantiated evidence that it makes you feel better.
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When using EANx, you should expect narcosis to be - CORRECT
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ANSWERS ✔✔Although enriched air has less nitrogen than air
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does, oxygen has been shown to be about as narcotic as
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nitrogen. Therefore, you should expect little difference between
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diving nitrox and air with respect to narcosis.
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The primary concern regarding enriched air nitrox and equipment
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is high oxygen content. - CORRECT ANSWERS ✔✔The primary
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concern regarding nitrox is the high oxygen content because
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some materials more readily burn, or even explode, in the
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presence of oxygen. |\ |\




The recommendations for using equipment, other than cylinders,
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with enriched air with up to 40% oxygen, include that (choose all
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that apply) - CORRECT ANSWERS ✔✔Generally, for all equipment
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except your cylinder you can use regular scuba equipment with
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enriched air with up to 40% oxygen. However, local laws,
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standards or practices may require special fittings or cleanings;
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follow these if they apply. In any case, during servicing, oxygen
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, compatible lubricants, as well as other materials, are generally
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recommended.


The potential hazards of improper enriched air filling procedures
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include (choose all that apply) - CORRECT ANSWERS ✔✔The
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primary hazards are fire or explosion hazard due to high oxygen
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content coming in contact with combustible substances, and
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inaccuracies in the blend leading to uncertainty of what the final |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


blend is. Nothing about blending would affect the potential for
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narcosis, nor likely affect the reliability of a scuba regulator.
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The markings that, according to broadly accepted dive
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community practices, you should have on a scuba cylinder used
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for enriched air nitrox include (choose all that apply) - CORRECT
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ANSWERS ✔✔The minimum markings on an enriched air cylinder
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include all the markings required of an air cylinder, plus a band
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around the cylinder shoulder reading NITROX, ENRICHED AIR or
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the like. Yellow cylinders should have a 10 centimetre/4 inch
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green band. Non yellow cylinders should have a 15 centimetre/6
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inch band. The top and bottom of this band should be a yellow,
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2.5 cm/1 in. band, with the center 10 cm/4 in of green. There
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should also be a sticker/decal indicating whether or not the
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cylinder is oxygen service rated, and a tag or sticker with the
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diver's name, the EANx blend, fill date and the maximum depth
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for using the blend. Local laws or standards may also add or
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substitute required markings. The blender's name, initials or the
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boat name may be on the cylinder, but these are not considered
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required markings. |\




The maximum oxygen partial pressure is _____________ and
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contingency partial pressure is ________________. - CORRECT |\ |\ |\ |\ |\ |\ |\


ANSWERS ✔✔The maximum oxygen partial pressure for a given
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