Open Water Course Knowledge Review Four fully solved 2023 passed

Open Water Course Knowledge Review FourDuring an underwater cleanup, my buddy and I fill a large mesh utility bag with several kilograms/pounds of garbage. We should - correct answer Carry the bag in our hands. I have a bit of a cold but feel I can manage the dive well enough, so it is okay to dive. - correct answer False Exertion from swimming hard, carrying equipment, climbing a ladder, long walk wearing gear, and heat stress from wearing exposure suiti n a hot climate can lead to heart attack in predisposed individuals. These factors can also cause problems for people with other cardiovascular conditions. - correct answer True Before diving, I should refrain from using - correct answer - Alcohol - Tobacco Medication can create problems when diving, so should I use prescription drugs and over-the-counter medications with caution. Any drug that effects my judgment, thinking and/or reactions should generally not used before diving. - correct answer True It is recommended that pregnant women do not dive. - correct answer True As a new PADI Open Water Diver, I should refresh my dive skills with a PADI Scuba Review after ..... of inactivity. - correct answer Six months 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. - correct answer True During a dive, I begin to have a headache, feel ill and dizzy. Are there possible symptoms of contaminated air? - correct answer Yes To avoid contaminated air, I should have my cylinder filled only at reputable scuba air source. - correct answer True The two primary factors that influence how much nitrogen dissolves into my body tissues during a dive are ..... and ..... . - correct answer 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. - correct answer True After a dive, a diver has numbness, tingling, and weakness in the arms. Are there possible signs/symptoms of DCS? - correct answer Yes Secondary factors though to contribute to DCS include - correct answer - 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). - correct answer At any time during If I am planning a dive to 12 meters/40 feet, my no stop limit will be ..... than my no stop limit for a dive to 10 meters/30 feet. - correct answer Shorter Exceeding my computer or table ascent rate may increase my risk of DCS. - correct answer True On a repetitive dive, for a given depth my no stop limits will be ..... those of the first dive. - correct answer Shorter than