Padi Open Water Diver Course Section 1 Final Test

Front 1

True or false an object is neutrally buoyant when it displaces less water than the objects weight?

Back 1

False: neutrally buoyant if the water the object displaces is an equal amount of water to weight of the object

Front 2

Explain why buyoyancy control, both on the surface and underwater, is one of the most important skills you can master.
On the surface it is important because it allows you to conserve_____________

Back 2

Energy

Front 3

Explain why buoyancy control, on the surface and underwater, is one of the most important skills you can master.
Underwater it is important it allows you to ___________

Back 3

Stay off the bottom and avoid damaging aquatic life

Front 4

Fill in the blanks with the appropriate words: fresh water or salt water.
"The same object would be more buoyant in__________ than it would be in_________."

Back 4

Salt water, Fresh water

Front 5

True or False Because water is denser than air, the pressure change for a given distance ascent or descent is significantly greater in water than in air

Back 5

True

Front 6

Regarding the chart for a sealed fleible bag, full of air at the surface:
Whats the pressure at 10m/33ft?

Back 6

2bar/ata

Front 7

Regarding the chart for a sealed fleible bag, full of air at the surface:
Whats the air density at 10m/33ft?

Back 7

x2

Front 8

Regarding the chart for a sealed fleible bag, full of air at the surface:
Whats the pressure at 30m/99ft?

Back 8

4bar/ata

Front 9

Regarding the chart for a sealed fleible bag, full of air at the surface:
Whats the air density at 30m/99ft?

Back 9

x4

Front 10

Regarding the chart for a sealed fleible bag, full of air at the surface:
Whats the air volume at 40m/132ft?

Back 10

1/5

Front 11

Whats the best definition for a sqeeze?

Back 11

A condition that causes pain and discomfort when the pressure inside an air space of your body is less than the pressure outside an air space

Front 12

Indicate the statements that describe a technique used to equalize air spaces during descent.
-Block your nose and attempt to gently blow through your nose through it
-Swallow and wiggle your jaw from side to side
-Block your nose and attempt to gently blow through it while swallowing and wiggling your jaw from side to side

Back 12

All dashes are correct!

Front 13

You should equalize your air spaces every ____, before you feel ______.

Back 13

few metres/feet, discomfort

Front 14

----------------

Back 14

false

Front 15

the most important rule in scuba diving is to breathe continuously and never _________________.

Back 15

hold your breath

Front 16

Reverse block is?

Back 16

a condition that occurs when expanding air cannot escape from a body air space during ascent, causing pain and discomfort

Front 17

If you feel discomfort due to air expansion you should?

Back 17

Descend a little stop and allow the trapped air to work its way out

Front 18

When scuba diving, your ______ must eb enclosed in your mask so that you can ______________ it.

Back 18

nose, equalize

Front 19

The best way to prevent water from entering you scuba tank is to?

Back 19

be sure you never completely drain it of all air pressure

Front 20

The most important feature for consideration when purchasing a regulator is:

Back 20

Ease of breathing