PADI Knowledge Review Four question n answers rated A+

PADI Knowledge Review Four During an underwater cleanup, my buddy and I fill up 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 cold but feel I can manage the dive well enough, so it is okay to dive. T/F - correct answer False Exertion from swimming hard, carrying equipment, climbing a ladder, long walks wearing gear, and heat stress from wearing an exposure suit in a hot climate can lead to heart attack in predisposed individuals. These factors can also cause problems for people with other cardiovascular conditions. T/F - correct answer True Before diving, I should refrain from using: - correct answer alcohol and tobacco Medications can create problems when diving, so I should use prescription drugs and over-the-counter medications with caution. Any drug that affects my judgment, thinking and/or reactions should generally not be used before diving. T/F - correct answer True It is recommended that pregnant women do not dive. T/F - 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 a PADI Enriched Air Diver, or under the supervision of a PADI Enriched Air Instructor, before using enriched air nitrox is to avoid oxygen toxicity problems. T/F - correct answer True During a dive, I begin to have a headache, feet ill and dizzy. Are these possible symptoms of contaminated air? - correct answer Yes To avoid contaminated air, I should have my cylinder filled only at reputable scuba air sources. T/F - correct answer True The two primary factors that influence how much nitrogen dissolves into my body tissues a dive are ______ and ______ - correct answer depth and time If i exceed established depth and time limits while diving and then surface, bubbles can form in my body tissues, causing decompression sickness. T/F - correct answer True After a dive, a diver had numbness, tingling and weakness in the arms. Are these possible signs/symptoms of DCS? - correct answer Yes Secondary factors thought 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. - correct answer At any time during If I am planning a dive to 12 metres/40 feet, my no stop limit will be __________ than my no stop limit for a dive to 10 metres/30 feet - correct answer shorter