PADI Quiz 1: Essential Scuba Diving Knowledge for Exam
Success
1. Something underwater that does not float and does Neutrally
Bouyant
not sink is .
2. If an object is neutrally buoyant in salt The object will sink.
water. What will probably happen to the
object if you put it into fresh water?
3. Imagine a diver is 33 metres/99 feet underwater.
The Four water pressure at this depth would be
times
more than the pressure at the surface.
4. Imagine you hold a glass full of air upside Greater than
down and you 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.
Stop and ascend (go
5. What should you do if you cannot equalize up) a few metres/feet
(clear) your ears or sinuses while you are and try to equalize
descending (go- ing down)? (clear) again.
6. What should you do to prevent mask Blow into your mask
squeeze (a sucking or pulling feeling on through your nose.
your face and eyes)?
7. Imagine you put air into a balloon underwater at 10 Expand to twice
the size as it
metres/33 feet and then you take it to the scuba dive?
surface. The air in the balloon will:
8. What can happen to you if you hold your
breath while ascending (going up) on a
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3
Success
1. Something underwater that does not float and does Neutrally
Bouyant
not sink is .
2. If an object is neutrally buoyant in salt The object will sink.
water. What will probably happen to the
object if you put it into fresh water?
3. Imagine a diver is 33 metres/99 feet underwater.
The Four water pressure at this depth would be
times
more than the pressure at the surface.
4. Imagine you hold a glass full of air upside Greater than
down and you 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.
Stop and ascend (go
5. What should you do if you cannot equalize up) a few metres/feet
(clear) your ears or sinuses while you are and try to equalize
descending (go- ing down)? (clear) again.
6. What should you do to prevent mask Blow into your mask
squeeze (a sucking or pulling feeling on through your nose.
your face and eyes)?
7. Imagine you put air into a balloon underwater at 10 Expand to twice
the size as it
metres/33 feet and then you take it to the scuba dive?
surface. The air in the balloon will:
8. What can happen to you if you hold your
breath while ascending (going up) on a
1/
3
