PADI Quiz 1
Something underwater that does not float and does not sink is ________. - correct answer Neutrally Bouyant
If an object is neutrally buoyant in salt water. What will probably happen to the object if you put it into fresh water? - correct answer The object will sink.
Imagine a diver is 33 metres/99 feet underwater. The water pressure at this depth would be ______times more than the pressure at the surface. - correct answer Four
Imagine you hold a glass full of air upside 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. - correct answer Greater than
What should you do if you cannot equalize (clear) your ears or sinuses while you are descending (going down)? - correct answer Stop and ascend (go up) a few metres/feet and try to equalize (clear) again.
What should you do to prevent mask squeeze (a sucking or pulling feeling on your face and eyes)? - correct answer Blow into your mask through your nose.
Imagine you put air into a balloon underwater at 10 metres/33 feet and then you take it to the surface. The air in the balloon will: - correct answer Expand to twice the size as it was at 10 metres/33 feet.
What can happen to you if you hold your breath while ascending (going up) on a scuba dive? - correct answer Your lungs can over expand which could cause serious injury.
What is the most important feature of a scuba regulator? - correct answer How easy it is to breathe from
it.
Something underwater that does not float and does not sink is ________. - correct answer Neutrally Bouyant
If an object is neutrally buoyant in salt water. What will probably happen to the object if you put it into fresh water? - correct answer The object will sink.
Imagine a diver is 33 metres/99 feet underwater. The water pressure at this depth would be ______times more than the pressure at the surface. - correct answer Four
Imagine you hold a glass full of air upside 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. - correct answer Greater than
What should you do if you cannot equalize (clear) your ears or sinuses while you are descending (going down)? - correct answer Stop and ascend (go up) a few metres/feet and try to equalize (clear) again.
What should you do to prevent mask squeeze (a sucking or pulling feeling on your face and eyes)? - correct answer Blow into your mask through your nose.
Imagine you put air into a balloon underwater at 10 metres/33 feet and then you take it to the surface. The air in the balloon will: - correct answer Expand to twice the size as it was at 10 metres/33 feet.
What can happen to you if you hold your breath while ascending (going up) on a scuba dive? - correct answer Your lungs can over expand which could cause serious injury.
What is the most important feature of a scuba regulator? - correct answer How easy it is to breathe from
it.
