PADI Open Water Certification Test
Guide
1. What is the most
Do not hold your
im- portant rule
breath Breathe
of scuba diving?
continuously
2. What are the
conse- quences
of breaking the Lung over expansion
most important severe injuries, death
rule in scuba
diving?
3. What is a pain and discomfort caused by expanding air trapped inside an air
reverse block? space during ascent
4. What should you slow or stop ascent
do if you feel descend a metre/few feet and give the trapped air time to work its
discom- fort way out
during ascent
due to air expan-
sion in the ears,
si- nuses,
stomach, in-
testines, or
teeth? the deeper you descend, the denser the air becomes.
5. How does
increasing
depth affect how long It takes 4X the ettort to breathe twice as fast
your air supply lasts?
6. What's the most 7. Why does a diver need a mask?
effi- cient way to
breathe dense air
underwa- ter?
, PADI Open Water Certification Test
Guide
take deep, slow breaths
creates an air space, so your eyes can focus
8. faster
, PADI Open Water Certification Test
Guide
As you go deeper,
you consume air
from your scuba
cylinder
9. Why does the to equalize during your descent to prevent mask squeeze
mask need to
enclose your
nose?
1) tempered glass
10. What 6 features
2) comfortable skirt with a good seal
should you look
3) nose or finger pockets
for in a mask?
4) low profile
5) Adjustable strap that can be locked in place
6) wide field of
11. When buying a vision fit and
mask, what are
the 2 most comfort
important
features?
12. How do you prepare a use a soft cloth with a low abrasion cleaner to remove the
protective chem-
new mask for use? 14. Why does a diver need a snorkel?
13. What 3 general
main- tenance
procedures apply
to mask care?
Guide
1. What is the most
Do not hold your
im- portant rule
breath Breathe
of scuba diving?
continuously
2. What are the
conse- quences
of breaking the Lung over expansion
most important severe injuries, death
rule in scuba
diving?
3. What is a pain and discomfort caused by expanding air trapped inside an air
reverse block? space during ascent
4. What should you slow or stop ascent
do if you feel descend a metre/few feet and give the trapped air time to work its
discom- fort way out
during ascent
due to air expan-
sion in the ears,
si- nuses,
stomach, in-
testines, or
teeth? the deeper you descend, the denser the air becomes.
5. How does
increasing
depth affect how long It takes 4X the ettort to breathe twice as fast
your air supply lasts?
6. What's the most 7. Why does a diver need a mask?
effi- cient way to
breathe dense air
underwa- ter?
, PADI Open Water Certification Test
Guide
take deep, slow breaths
creates an air space, so your eyes can focus
8. faster
, PADI Open Water Certification Test
Guide
As you go deeper,
you consume air
from your scuba
cylinder
9. Why does the to equalize during your descent to prevent mask squeeze
mask need to
enclose your
nose?
1) tempered glass
10. What 6 features
2) comfortable skirt with a good seal
should you look
3) nose or finger pockets
for in a mask?
4) low profile
5) Adjustable strap that can be locked in place
6) wide field of
11. When buying a vision fit and
mask, what are
the 2 most comfort
important
features?
12. How do you prepare a use a soft cloth with a low abrasion cleaner to remove the
protective chem-
new mask for use? 14. Why does a diver need a snorkel?
13. What 3 general
main- tenance
procedures apply
to mask care?
