Padi Open Water Exam Questions And Answers Verified 100% Correct

Padi Open Water Exam Questions And Answers Verified 100% Correct What 5 features do BCDs have in common? - ANSWER 1) enough air 2) large diameter inflation/deflation hose 3) low pressure inflation system 4) over pressure relief valve 5) adjustable to fit comfortably How do you prepare a BCD for use? - ANSWER adjustment for proper fit is required With it deflated, adjust the straps Put it on, have someone help fine tune it Inflate it What additional maintenance requirements do you have with a BCD? - ANSWER rinse interior with fresh water store partially inflated Why does a diver need a scuba cylinder? - ANSWER used to safely store high pressure air What does a cylinder valve do? - ANSWER control air flow from the cylinder With what piece of equipment is the backpack integrated? - ANSWER cylinder What are 4 common sizes and 2 materials for scuba cylinders? - ANSWER 8, 10, 12, 15 liters aluminum and steel What 5 common markings do you commonly find on the neck of a scuba cylinder? - ANSWER 1) type of material cylinder is made of 2) max pressure permitted in cylinder 3) serial number 4) dates of pressure tests 5) manufacturer symbol What are 2 basic types of cylinder valves? - ANSWER K-valve: simple on and off J-valve: built in mechanism that signals when you run low on air What's the difference between a DIN valve and a Yoke valve? - ANSWER DIN: screw the regulator into the valve Yoke: most common, attach regulator via Yoke What is the purpose of a burst disc? - ANSWER relieve the cylinder over pressurization which can happen from overfilling the cylinder or excess heat How do you turn a cylinder valve on and off? - ANSWER Open slowly until it stops turning Close it all the way gently What's the best way to keep water out of a scuba cylinder? - ANSWER never allow it to be completely empty Why do you need scuba cylinder visual inspections and pressure tests? - ANSWER overfilling can lead to metal fatigue and shorten the life of the cylinder to avoid corrosion What does a regulator do? - ANSWER - makes it possible to use the air to your cylinder - reduces scuba cylinder's high pressure air to match the surrounding water pressure When looking at a regulator, which are the following parts: first stage - ANSWER first stage: attach to scuba cylinder valve second stage: has a mouthpiece What's the most important feature for consideration when purchasing a regulator? - ANSWER ease of breathing How do you rinse a regulator after use? - ANSWER soak it, while attached to your scuba cylinder then rinse with running water What 3 points do you need to keep in mind when rinsing your regulator? - ANSWER 1)put the first stage dust cover firmly in place to keep H2o out of first stage 2) Do not use high pressure water to rinse 3) Don't press the purge button while rinsing or soaking, bc it opens the second stage inlet valve What is a SPG? - ANSWER Submersible Pressure Gauge Why do divers need a submersible pressure gauge? - ANSWER to monitor how much air you have Proper airway control means to: - ANSWER 1) Always inhale slowly if water enters your regulator, snorkel or mouth, so you don't pull it into your throat; 2) always inhale cautiously and slowly after clearing your snorkel or reg- ulator; and 3) use your tongue as a splash guard by putting the tip on the roof of your mouth when you breath past small amounts of water. How to breath? - ANSWER Always breathe slowly and deeply and continu- ously when using scuba. Strive to develop airway control. Overexertion symptoms include - ANSWER symptoms include fatigue, labored breathing, a feel- ing of suffocation, weakness, anxiety, headache, muscle cramping or a tendency to panic. three basic styles of exposure suits, - ANSWER the body suit, the wet suit and the dry suit. All expo- sure suits have four basic maintenance steps: - ANSWER 1) rinse, 2) dry inside out, 3) store and 4) lubricate dry suit zip- pers periodically. You can follow these points to avoid overheating: - ANSWER 1. Set up all your equip- ment before putting on the exposure suit. Put the suit on at the last possible moment. 2. Once you have the suit on, limit your activ- ity as much as possible. 3. Stay out of the sun as much as possible. 4. Keep your hood off, or at least pulled back off your head as long as possible. 5. Leave your jacket unzipped as long as possible. 6. Cool off by entering the water, or spraying down with a hose (common on dive boats) as much as you need. You can get two basic weight system types: - ANSWER the weight belt, and the integrated weight system The most important feature on any weight system. - ANSWER The quick release. An important part of setup is determining how much weight you need. - ANSWER You should float at eye level. If not, add or subtract weight until you do. You can hold weights while you figure out how much you need, then adjust your weight system. What is "alternate air source". - ANSWER An "alternate air source" is any second stage you may use, other than your own primary second stage, to ascend while breathing normally. Alternate air sources that require another diver include ? - ANSWER the alternate air