Padi Open Water Diving Section 4 Already Passed

For practical purposes, air consists of oxygen and {Ans: Notrogen}Factors that can strain my heart in diving include. {Ans: Swimming hard, carrying equipment, climbing ladders, heat stress}A spare parts kit contains {Ans: User-replaceable items}I log my dives: {Ans: To document training, as a reference tool, to share information, keep related information}Enriched air nitric can have oxygen issues. To avoid these, I should become qualified to dive with enriched air in the PADI Enriched Air Diver Course, or be under the supervision of a PADI Enriched Air Instructor {Ans: True}Which of the following might I have in a spare parts kit? A. Spare mask strap, fin straps B. Harness / weight belt buckle C. Cable (pull) ties D. Adjustable wrench (spanner), pliers, screw drivers, hex wrenched (Allen keys) E. Regulator mouthpiece F. Accessory clip G. Various sized cylinder valve/DIN valve o-rings {Ans: A. Spare mask strap, fin straps B. Harness / weight belt buckle C. Cable (pull) ties D. Adjustable wrench (spanner), pliers, screw drivers, hex wrenched (Allen keys) E. Regulator mouthpiece F. Accessory clip G. Various sized cylinder valve/DIN valve o-rings}If I dive within recreational limits using air, I avoid the problems associated with