Download PADI, Open Water Diver, Final Exam Review Latest Questions and Answers 2024-2025. and more Exams Earth Sciences in PDF only on Docsity!
PADI, Open Water Diver, Final Exam Review
Latest Questions and Answers 2023
- If an object is neutrally buoyant (does not sink or float) in fresh water, the same object placed into salt water would A sink. B either sink or float. C do nothing. D float. - Correct answer D
- I blow up a balloon, tie it off, and take it to the bottom of the swimming pool. What will happen to the balloon and the air inside it? A The balloon will get bigger and the air inside the balloon will be less dense (molecules move further apart). B The balloon will get smaller and the air inside the balloon will be more dense (molecules move closer together). C The balloon will get bigger and the air inside the balloon will be more dense. D The balloon will get smaller and the air inside the balloon will be less dense. - Correct answer B
- I turn a glass upside down, trap the air in it by putting it in water, and then I take the glass down to 10 meters. The air space would A become half the size it was at the surface. B not change in size. C become 1/3 the size it was at the surface. D become 2/3 the size it was at the surface. - Correct answer A
- If I am not able to equalize (clear) my body air spaces, it may be because I have
A seasickness. B heart disease and high blood pressure. C a cold, allergy or another medical problem. D anxiety. - Correct answer C
- If my ears or sinuses hurt while I am descending (going down), it usually means A my air spaces are equalized. B my mask strap is too tight. C I am feeling a squeeze and need to equalize. D my mask is too small. - Correct answer C
- The best place for me to position an alternate air source is A loose by my side so I can find it fast. B in the triangle area formed by my chin and the lower corners of my rib cage. C to the base of my cylinder. D to the back of my BCD between my shoulder blades and waist. - Correct answer B
- Lung overexpansion injuries can be caused by A scuba diving without a buddy. B continuing a dive when not properly weighted. C not drinking enough water before scuba diving. D holding my breath while scuba diving. - Correct answer D
- If my cylinder of air lasts 60 minutes while I am at the surface breathing normally, assuming all else is the same, how long will it last at 20 meters breathing normally? A 60 minutes
alternate air source second stage low pressure inflator hose for the BCD instrument console/gauges/computer - Correct answer 1. regulator first stage, 2. regulator second stage, 3. alternate air source second stage, 4. instrument console/gauges/computer, 5. low pressure inflator hose for the BCD
- When I look at things underwater they often seem ___________ than they look on the surface. A larger and/or nearer B larger and/or further away C smaller and/or further away D smaller and/or nearer - Correct answer A
- ___________ travels faster in water than it does in air. This is why you cannot easily tell where it comes from. A Light B Current C Aquatic life D Sound - Correct answer D
- Unless there are laws that say differently, I should stay within ___________ of my dive flag. Boats should stay at least 100 ft away. A 200 ft. B 100 ft. C 50 ft. D 17 ft. - Correct answer C
- If I work too hard and find it difficult to breathe underwater, I should
A inflate my BCD. B stop all activity and rest, holding onto something for support if possible. C swim immediately to my buddy and signal for help. D do a controlled emergency swimming ascent (CESA - swimming up to the surface saying the ah-h-h-h sound). - Correct answer B
- As I descend (go down), my wet suit will A compress (feel thinner) from water pressure, and I will lose buoyancy and warmth. B expand (feel thicker) from water pressure, and I will gain buoyancy and warmth. C remain the same thickness from the water pressure, and there will be no change in warmth. D expand (feel thicker) from water pressure, and I will lose buoyancy and warmth. - Correct answer A
- I know I am properly weighted for diving if I A float at neck level with my BCD about half full while I am holding a normal breath of air. B sink slowly holding a normal breath of air and with an empty BCD. C float at eye level while holding a normal breath of air and with an empty BCD. D sink easily with a partially filled BCD. - Correct answer C
- Choose the best answer for the signal shown from the choices provided. A Stop, hold it, stay there. B Go back. C Please be quiet. D Go up. - Correct answer A
B Stay at this depth. C Go this way. D Out of air. - Correct answer D
- Choose the best answer for the signal shown from the choices provided. A Look at me. B Low on air. C Share air. D Go up. - Correct answer B B Share air. This is the hand signal for share air. See Your Skills as a Diver I - Hand Signals. - Correct answer 26) Choose the best answer for the signal shown from the choices provided. A Turn the dive. B Share air. C I am thirsty. D I have lost my mouthpiece. B Search for a minute and then go up to reunite with my buddy at the surface. The general procedure for buddy separation is to search for no more than one minute, then surface to reunite. See Being a Diver II - The Buddy System. - Correct answer 27) If I were separated from my buddy, the general procedure is to
A go up immediately, wait a minute and then go back down. B search for a minute and then go up to reunite with my buddy at the surface. C go to the surface immediately and get out of the water. D look for my buddy's bubbles and follow the bubbles to find my buddy. D In midwater When descending and ascending in reduced visibility, you can feel disoriented, especially in mid-water when you can't see either the bottom or the surface. See Being a Diver III - Visibility. - Correct answer 28) I am most likely to become confused about which way is up or down _____________. A at the surface B near the surface C on the bottom D in midwater C Dive against or into the current. By swimming into a current for the first part of a dive, you can let it carry you back to where you started during the second part. See Being a Diver III - Water Movement. - Correct answer 29) I feel a mild current at the start of my dive. How should I begin this dive? A Dive with the current. B Dive across the current. C Dive against or into the current. D Dive at an angle to the current.
jerky movements, and do not follow instructions. They need immediate help because they may continue to struggle until exhausted. See Being a Diver III - Surface Problem Management - Responsive Diver. - Correct answer 32) A diver at the surface is moving quickly and jerkily, has the mask off the face, the regulator/snorkel is out of the mouth, and the diver does not respond to directions. The diver is A giving the okay signal. B performing a predive safety check. C excited about the dive. D showing signs of distress (trouble). A Switch to my buddy's alternate air source. When out of air, your best option is usually to make an alternate air source ascent using your buddy's alternate air source. See Being a Diver III - Underwater Problem Management. - Correct answer 33) I am close to my buddy and realize I am out of air. The best response is to A switch to my buddy's alternate air source. B make a controlled emergency swimming ascent (swim up to the surface making a continuous sound, like ah-h-h-h). C make a buoyant emergency ascent (dropping my weight system). D switch to my buddy's alternate air source and continue the dive. C Hold the regulator without sealing my mouth around the mouthpiece and "sip" the air I need as I ascend (go up).
You can breathe from a freeflowing regulator by "sipping" air as you need it. Don't seal your mouth around the mouthpiece. Begin your ascent promptly, because the freeflow will exhaust your air supply quickly. See Being a Diver III - Underwater Problem Management. - Correct answer 34) If my regulator begins to free flow (release air continuously) while underwater, I should A make a controlled emergency swimming ascent. B do nothing special. C hold the regulator without sealing my mouth around the mouthpiece and "sip" the air I need as I ascend (go up). D make a buoyant emergency ascent. A Ascend using my buddy's alternate air source / make a controlled emergency swimming ascent You can make a normal ascent when very low on air, but your cylinder isn't completely empty. When out of air, your best option is usually to make an alternate air source ascent using your buddy's alternate air source. Make a controlled emergency swimming ascent when fairly shallow and the surface is closer than a buddy with an alternate air source. Make a buoyant emergency ascent when your buddy is not near and you're deep enough that you don't think you can make it to the surface by just swimming. See Being a Diver III - Underwater Problem Management. - Correct answer 35) Although it shouldn't have happened, on a dive I fail to watch my SPG and run out of air. If my buddy is close by, my best option is to __________. Another option is to _____________, if I'm in shallow water and the surface is closer than my buddy. Note: you may have to scroll down to see the whole question or to submit your answer. A ascend using my buddy's alternate air source / make a controlled emergency swimming ascent
D reduce the risk of breathing contaminated air. A Ascend (go up) to a shallower depth. If you or a buddy experience narcosis, immediately ascend to a shallower depth. Narcosis generally fades quickly when you return to a shallower depth. See Being a Diver V - Gas Narcosis. - Correct answer 38) Divers who act foolishly at depth due to gas narcosis may start acting normally again if they A ascend (go up) to a shallower depth. B breathe slowly and deeply. C signal their buddy for help. D dive within no stop limits. B Dive while tired, cold, sick, thirsty or injured. Secondary factors that can contribute to developing decompression sickness include fatigue, dehydration, cold, poor fitness, high body fat, illness, injuries, age, alcohol consumption before or after a dive, and vigorous exercise before, during or immediately after a dive. See Being a Diver IV - Decompression Sickness. - Correct answer 39) I am likely to increase the risk of decompression sickness (DCS) if I A dive in poor visibility, strong moving water, and rough seas. B dive while tired, cold, sick, thirsty or injured. C do not look after my equipment. D am using a dive computer. C Breathe 100 percent oxygen and contact emergency medical care.
For a suspected case of decompression illness, contact emergency medical care, lie down and breathe emergency oxygen. Almost all cases of decompression illness require treatment in a recompression chamber. Don't delay first aid and getting to treatment. See Using Dive Computers and Tables II - First Aid Treatment for Decompression Illness. - Correct answer 40) If I think I have decompression sickness I should A stop diving until I feel better. B go back in the water. C breathe 100 percent oxygen and contact emergency medical care. D see a doctor when I can. B Reading the manufacturer's instructions. Before you dive with a computer, you need to read the manufacturer's dive computer manual. It's your responsibility to read and understand the manufacturer's instructions. See Using Dive Computers and Tables I - Planning Dives with Your Computer. - Correct answer 41) The first step in using my dive computer is A setting the time and date. B reading the manufacturer's instructions. C calibrating it for enriched air nitrox. D setting it for fresh or salt water.
- When planning a dive with a computer, I use the "plan" or "no stop scroll" mode to determine A the maximum depth of the previous dive.
C my dive computer will probably not work at all. D I do not need to do anything special. - Correct answer A
- If my computer fails during a dive, I can use my backup computer to continue the dive. If I'm not wearing a backup, I should A ascend (go up), make a safety stop and end the dive. B borrow my buddy's backup. C continue the dive until low on air, but make no repetitive dives. D end the dive and surface immediately. - Correct answer A
- I make two dives in one day and am flying home on a commercial plane. I should wait until my computer says I can fly or ________ hours, whichever is longer. A 0 B 48 C 24 D 18. - Correct answer D
- As a new PADI Open Water Diver, the recommended maximum depth is ______________, or the actual depth I reached in training, if shallower. The maximum depth for all recreational scuba divers, even experienced divers, is ______________. A 10 meters/ 18 meters B 12 meters / 30 meters C 18 meters / 40 meters D 24 meters / 58 meters - Correct answer C
- When diving at an altitude above 300 meters A I do not need to follow special procedures.
B I can't use my dive computer. C I do not need to follow special procedures, but my computer may need to be set for the altitude. D I need to follow special procedures and may need to set my computer for the altitude.
- I dive to 18 meters for 33 minutes. After a 30-minute surface interval, I plan to dive to 17 meters. What is the maximum allowable time for the second dive? A 21 minutes B 32 minutes C 23 minutes D 19 minutes - Correct answer B
- I am planning to make two dives. The first dive is to 18 meters for 49 minutes. The second dive is to 18 meters for 24 minutes. How long would I have to stay on the surface (minimum surface interval) to do these two dives safely? A 26 minutes B 32 minutes C 54 minutes D 59 minutes - Correct answer B
- I dive to 17 meters for 47 minutes. After a 30-minute surface interval, I do a second dive to 17 meters. Losing track of time, I notice my bottom time is now 25 minutes. According to the General Rules, what should I do? Note: you may have to scroll down to see the whole question or to submit your answer.
My third dive is to 18 meters. What would be my maximum allowable bottom time for this third dive? A 21 minutes B 54 minutes C 34 minutes D 25 minutes - Correct answer C
