IDEA Open Water Dive Scuba Certification
UPDATED ACTUAL Exam Questions and
CORRECT Answers
T/F A dive mask must cover both the eyes and nose to be able to clear the inner mask space of
water if it becomes flooded while diving - CORRECT ANSWER - TRUE
As divers descend they must periodically _________ through the nose in order to ____________
the air space within the mask with the increasing external water pressure - CORRECT
ANSWER - exhale / equalize
When selecting a quality dive mask, look for a _____________ lens - CORRECT
ANSWER - tempered
To accomplish a good fit and seal for you dive mask, you need a good _____________ and
adjustment mechanism is a necessity - CORRECT ANSWER - skirt
Dive masks have a pinch pocket to pinch the _____________ as the diver descends and water
pressure increases - CORRECT ANSWER - nose
Dive masks with a small one way valve are called _____________ valve masks - CORRECT
ANSWER - purge
T/F Low volume masks are easy to clear - CORRECT ANSWER - TRUE
T/F One way valve masks are able to expel large amounts of water - CORRECT
ANSWER - FALSE
T/F Mask lens fogging is due to water temperature that is cooler than the air temp inside the
mask - CORRECT ANSWER - TRUE
,T/F An anti fogging solution is not a necessity for the diver - CORRECT ANSWER -
FALSE
The dive mask worn on the forehead on the surface is generally considered a signal of:
a. diver in distress
b. an easy way to lose your snorkel
c. a diver panicking
d. all of the above - CORRECT ANSWER - d. all of the above
Dive masks should be stored in a :
a. dive bag
b. mask protector box
c. wrapped in a towel to protect the lens
d. zip lock bag - CORRECT ANSWER - b. mask protector box
T/F It is a good idea to grease or spray the mask strap with silicone spray or grease - CORRECT
ANSWER - FALSE
The first known development of diving fins were drawings made by:
a. Peppi La Peuw
b. Michaelangelo
c. Roquayrol
d. Da Vinci - CORRECT ANSWER - d. Da Vinci
A good pair of diving fins will increase the power and swimming efficiency of a scuba diver by
________ % - CORRECT ANSWER - 75
The best fins for scuba diving are ________ heel fins - CORRECT ANSWER - open
, T/F Dive boots are needed with full foot pocket fins - CORRECT ANSWER - FALSE
Explain why you should not attempt to walk forward with dive fins on - CORRECT
ANSWER - You will faceplant. Walk sideways or backwards.
What is the most widely used and efficient swimmers kick when using diving fins? - CORRECT
ANSWER - flutter
Explain the steps to follow if you get a leg cramp while diving - CORRECT ANSWER -
stretch leg out, pull fin back, rub muscle
Explain the steps that you would follow if your dive buddy gets a leg cramp while diving -
CORRECT ANSWER - pull their fin back and rub muscle out
The first snorkels were probably made out of ________ - CORRECT ANSWER - reeds
Because of the great pressure of water, the maximum depth a human could draw air through
snorkel is less than how many feet - CORRECT ANSWER - 2 ft. of water
The recommended length of a snorkel is ________ to ________ inches - CORRECT
ANSWER -
The recommended bore diameter for a snorkel is ________ - CORRECT ANSWER - 3/4
inch
T/F The snorkel is not needed by a scuba diver - CORRECT ANSWER - FALSE
Briefly explain the SAFE rest in water position and the benefit it provides for a diver on the
surface - CORRECT ANSWER - face down using snorkel
UPDATED ACTUAL Exam Questions and
CORRECT Answers
T/F A dive mask must cover both the eyes and nose to be able to clear the inner mask space of
water if it becomes flooded while diving - CORRECT ANSWER - TRUE
As divers descend they must periodically _________ through the nose in order to ____________
the air space within the mask with the increasing external water pressure - CORRECT
ANSWER - exhale / equalize
When selecting a quality dive mask, look for a _____________ lens - CORRECT
ANSWER - tempered
To accomplish a good fit and seal for you dive mask, you need a good _____________ and
adjustment mechanism is a necessity - CORRECT ANSWER - skirt
Dive masks have a pinch pocket to pinch the _____________ as the diver descends and water
pressure increases - CORRECT ANSWER - nose
Dive masks with a small one way valve are called _____________ valve masks - CORRECT
ANSWER - purge
T/F Low volume masks are easy to clear - CORRECT ANSWER - TRUE
T/F One way valve masks are able to expel large amounts of water - CORRECT
ANSWER - FALSE
T/F Mask lens fogging is due to water temperature that is cooler than the air temp inside the
mask - CORRECT ANSWER - TRUE
,T/F An anti fogging solution is not a necessity for the diver - CORRECT ANSWER -
FALSE
The dive mask worn on the forehead on the surface is generally considered a signal of:
a. diver in distress
b. an easy way to lose your snorkel
c. a diver panicking
d. all of the above - CORRECT ANSWER - d. all of the above
Dive masks should be stored in a :
a. dive bag
b. mask protector box
c. wrapped in a towel to protect the lens
d. zip lock bag - CORRECT ANSWER - b. mask protector box
T/F It is a good idea to grease or spray the mask strap with silicone spray or grease - CORRECT
ANSWER - FALSE
The first known development of diving fins were drawings made by:
a. Peppi La Peuw
b. Michaelangelo
c. Roquayrol
d. Da Vinci - CORRECT ANSWER - d. Da Vinci
A good pair of diving fins will increase the power and swimming efficiency of a scuba diver by
________ % - CORRECT ANSWER - 75
The best fins for scuba diving are ________ heel fins - CORRECT ANSWER - open
, T/F Dive boots are needed with full foot pocket fins - CORRECT ANSWER - FALSE
Explain why you should not attempt to walk forward with dive fins on - CORRECT
ANSWER - You will faceplant. Walk sideways or backwards.
What is the most widely used and efficient swimmers kick when using diving fins? - CORRECT
ANSWER - flutter
Explain the steps to follow if you get a leg cramp while diving - CORRECT ANSWER -
stretch leg out, pull fin back, rub muscle
Explain the steps that you would follow if your dive buddy gets a leg cramp while diving -
CORRECT ANSWER - pull their fin back and rub muscle out
The first snorkels were probably made out of ________ - CORRECT ANSWER - reeds
Because of the great pressure of water, the maximum depth a human could draw air through
snorkel is less than how many feet - CORRECT ANSWER - 2 ft. of water
The recommended length of a snorkel is ________ to ________ inches - CORRECT
ANSWER -
The recommended bore diameter for a snorkel is ________ - CORRECT ANSWER - 3/4
inch
T/F The snorkel is not needed by a scuba diver - CORRECT ANSWER - FALSE
Briefly explain the SAFE rest in water position and the benefit it provides for a diver on the
surface - CORRECT ANSWER - face down using snorkel
