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PADI OPEN WATER DIVER, FINAL EXAM QUESTIONS WITH
COMPLETE SOLUTIONS GUARANTEED PASS BRAND NEW
- 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. - ANSWER - >D float. Salt water is heavier than fresh water because it has dissolved minerals in it. This means it causes more upward force (buoyancy) on an object. An object that is neutrally buoyant in fresh water would float in salt water because there is greater upward force. See Being a Diver I - Buoyancy and Controlling Buoyancy.
- 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. - ANSWER - >B The balloon will get smaller and the air inside the balloon will be more dense (molecules move closer together). As water pressure increases, the volume of an air space will decrease. This causes the density of the air inside to increase and air molecules are pushed closer together. The balloon would get smaller and the air density inside would be greater. See Being a Diver I - Water Pressure and Air Volume Effects.
- 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
See Being a Diver I - The Effects of Increasing Pressure on Body Air Spaces.
- 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. - ANSWER - >C I am feeling a squeeze and need to equalize. Pain in your ears or sinuses means that they aren't equalized. Stop your descent and ascend slightly to relieve pressure on your ears. Then attempt to equalize again. If you can't equalize, end the dive. See Being a Diver I - The Effects of Increasing Pressure on Body Air Spaces.
- 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. - ANSWER - >B In the triangle area formed by my chin and the lower corners of my rib cage. Your alternate air source attaches with a quick release in the triangle area formed by your chin and the lower corners of your rib cage. Avoid letting your alternate air source dangle unsecured from your kit. See Equipment I - Regulators.
- 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. - ANSWER - >D Holding my breath while scuba diving. Blocking off your lungs by holding your breath and ascending could cause them to overexpand and rupture, which is a serious injury that could result in paralysis and
A Once a year. B Once every two years. C Every six months. D Every five years. - ANSWER - >A Once a year. Have your cylinder visually inspected annually for internal corrosion or other contamination/damage. See Equipment I - Cylinders.
- The difference between DIN valves and yoke valves is that DIN valves A are made from durable plastic. B contain a spring-operated shutoff valve that is held open by cylinder pressure. C have an o-ring in them. D have threaded openings to screw the regulator into. - ANSWER - >D Have threaded openings to screw the regulator into. With the DIN system, the regulator screws into the valve. The yoke system holds the regulator first stage to the cylinder with a clamp system.
See Equipment I - Cylinders.
- Which of the following is part of proper care for my scuba cylinder? A Sand and repaint it every year. B Dry it in the sun. C Keep some air in it. D Have it pressure tested every month. - ANSWER - >C Keep some air in it. You should keep some air in the cylinder to prevent moisture from entering and causing corrosion. Also, have it pressure tested at required intervals, usually two to five years. Have it visually inspected annually. Store it standing in a safe place and keep it away from high heat. See Equipment I - Cylinder Care.
- Refer to the regulator picture. Each regulator part has a number next to it. Please choose the correct number for the choices below. regulator first stage, regulator second stage alternate air source second stage
See Being a Diver II - Seeing and Hearing as a Diver.
- ___________ 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 - ANSWER - >D Sound Sound travels about four times faster in water than in air. This makes it difficult to determine where the sound is coming from because it seems to come from all around or directly overhead. See Being a Diver II - Hearing Underwater.
- Unless there are laws that say differently, I should stay within ___________ of my dive flag. A 60 meters B 30 meters C 15 meters D 5 meters - ANSWER - >C 15 meters
If there are no specific local laws regarding dive flags, stay within 15 meters of the flag. Boats should stay 30 to 60 meters away. See Equipment III - Dive Flags.
- 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). - ANSWER - >B Stop all activity and rest, holding onto something for support if possible. If you find it difficult to breathe you're overexerted. Immediately stop and rest while holding onto something for support to restore normal breathing. Continue only after you've regained a normal, slow breathing rate. See Being a Diver II - Overexertion.
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. - ANSWER - >C Float at eye level while holding a normal breath of air and with an empty BCD. Part of having good buoyancy and trim is having the right amount of weight. You should float at eye level with an empty BCD and holding a normal breath. When you exhale, you should slowly sink. See Your Skills as a Diver II - Weight Check and Proper Weighting.
- 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. - ANSWER - >A Stop, hold it, stay there. This is the hand signal for stop, hold it or stay there.
See Your Skills as a Diver I - Hand Signals.
- Choose the best answer for the signal shown from the choices provided. A Which is the right way? B Something is wrong. C Go up and down. D Everything is okay. - ANSWER - >B Something is wrong. This is the hand signal for something is wrong. See Your Skills as a Diver I - Hand Signals.
- Choose the best answer for the signal shown from the choices provided. A My finger is cold. B Go around the rock. C Okay? Okay. D Stay together. - ANSWER - >C Okay? Okay. This is the hand signal for Okay. See Your Skills as a Diver I - Hand Signals.
- Choose the best answer for the signal shown from the choices provided. A Which way to the boat? B Stay at this depth. C Go this way. D Out of air. - ANSWER - >D Out of air. This is the hand signal for out of air. See Your Skills as a Diver I - Hand Signals.
- 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. - ANSWER - >B Low on air. This is the hand signal for low on air. See Your Skills as a Diver I - Hand Signals.
- 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. - ANSWER - >B Share air. This is the hand signal for share air. See Your Skills as a Diver I - Hand Signals.
- 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. - ANSWER - >B Search for a minute and then go up to reunite with my buddy at the surface.
D Dive at an angle to the current. - ANSWER - >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.
- What the bottom is made of can cause big changes in A visibility (how far you can see underwater). B temperature (how warm the water is). C current (the movement of water). D buoyancy (whether you sink or float). - ANSWER - >A Visibility (how far you can see underwater). The nature and composition of particles in the water affects visibility. Large, heavy material - like from gravel and rock bottoms - settles out of the water quickly, restoring visibility quickly. Small, light particles - like from mud and clay bottoms - can remain suspended for very long periods. See Being a Diver III - Visibility.
- Most injuries caused by aquatic animals happen because the animals are A hungry. B curious. C injured. D trying to defend themselves. - ANSWER - >D Trying to defend themselves. Nearly all aquatic life injuries result from defensive actions by the animals. You can generally avoid injuries by being aware and respectful of aquatic organisms. See Being a Diver III - Aquatic Life.
- 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). - ANSWER - >D Divers who are distressed or panicked often have their masks on their foreheads and don't use their breathing
