Page 1 of 130
PADI Open Water Certification FINAL EXAM ALL 500
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
THIS YEAR
PADI Open Water Certification FINAL
1: 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.
C
Q;2: 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.
D
ALL THE BEST CHAMP!!
1
,Page 2 of 130
3: 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.
B
4: 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 metres/33 feet. 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.
A
5: If my ears or sinuses hurt while I am descending (going down), it usually means
ALL THE BEST CHAMP!!
2
,Page 3 of 130
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.
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.
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.
D
ALL THE BEST CHAMP!!
3
, Page 4 of 130
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 metres/66 feet breathing normally?
A 60 minutes
B 20 minutes
C 15 minutes
D 12 minutes
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.
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.
ALL THE BEST CHAMP!!
4
PADI Open Water Certification FINAL EXAM ALL 500
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
THIS YEAR
PADI Open Water Certification FINAL
1: 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.
C
Q;2: 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.
D
ALL THE BEST CHAMP!!
1
,Page 2 of 130
3: 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.
B
4: 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 metres/33 feet. 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.
A
5: If my ears or sinuses hurt while I am descending (going down), it usually means
ALL THE BEST CHAMP!!
2
,Page 3 of 130
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.
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.
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.
D
ALL THE BEST CHAMP!!
3
, Page 4 of 130
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 metres/66 feet breathing normally?
A 60 minutes
B 20 minutes
C 15 minutes
D 12 minutes
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.
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.
ALL THE BEST CHAMP!!
4
