Padi Open Water Diver Final Exam
Review 2024
1) 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
2) I blow up a balloon, tie it off, and take it...
what would be my maximum allowable bottom time for
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Padi Open Water Diver Final Exam Review 2024 1) 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 2) 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 3) 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 4) 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 5) 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 6) 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 7) 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 8) 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 B 20 minutes C 15 minutes D 12 minutes - CORRECT ANSWER -B 9) How often should I take my scuba cylinder to be visually inspected by my dive center? A Once a year. B Once every two years. C Every six months. D Every five years. - CORRECT ANSWER -A 10) 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. - CORRECT ANSWER -D 11) 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. - CORRECT ANSWER -C
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