PADI Open Water Certification Final Exam
Practice Questions And Correct Answers
(Verified Answers) 2026/2027
Something underwater that does not float and does not sink is - CORRECT ANSWER -Negatively
Buoyant
If an object is neutrally buoyant in salt water, what will happen to the object if put into fresh
water? - CORRECT ANSWER -The object will sink
A diver is 30 meters/99 feet underwater. The water pressure at this depth would be ____ times
more than the pressure at the surface. - CORRECT ANSWER -Four
If I hold a glass full of air upside down, and I take it to the bottom of the swimming pool without
tipping it, the density (thickness) of the air inside the glass will be ____ at the surface? -
CORRECT ANSWER -greater than
What should I do if I can't equalize (clear) my ears or sinuses while I am descending (going
down)? - CORRECT ANSWER -Stop and ascend a meter/few feet, and try to equalize again
What should I do to prevent mask squeeze (a sucking or pulling feeling on my face and eyes)? -
CORRECT ANSWER -Blow into my mask through my mask
I put air into balloon underwater at 10 meters/33 feet and then I take it to the surface. The
balloon will ____ - CORRECT ANSWER -Expand (become larger) to twice the size
What can happen to me if I hold my breath while ascending on a scuba dive? - CORRECT
ANSWER -My lungs can over-expand, which could cause serious injury
Practice Questions And Correct Answers
(Verified Answers) 2026/2027
Something underwater that does not float and does not sink is - CORRECT ANSWER -Negatively
Buoyant
If an object is neutrally buoyant in salt water, what will happen to the object if put into fresh
water? - CORRECT ANSWER -The object will sink
A diver is 30 meters/99 feet underwater. The water pressure at this depth would be ____ times
more than the pressure at the surface. - CORRECT ANSWER -Four
If I hold a glass full of air upside down, and I take it to the bottom of the swimming pool without
tipping it, the density (thickness) of the air inside the glass will be ____ at the surface? -
CORRECT ANSWER -greater than
What should I do if I can't equalize (clear) my ears or sinuses while I am descending (going
down)? - CORRECT ANSWER -Stop and ascend a meter/few feet, and try to equalize again
What should I do to prevent mask squeeze (a sucking or pulling feeling on my face and eyes)? -
CORRECT ANSWER -Blow into my mask through my mask
I put air into balloon underwater at 10 meters/33 feet and then I take it to the surface. The
balloon will ____ - CORRECT ANSWER -Expand (become larger) to twice the size
What can happen to me if I hold my breath while ascending on a scuba dive? - CORRECT
ANSWER -My lungs can over-expand, which could cause serious injury
