NAUI OPEN WATER ELEARNING EXAM
PREP STUDY SHEET 2026 PRACTICE
SOLUTION FULL ANSWER KEY SOLVED
QUESTIONS
⩥ Factors that can affect the breathing ease of a snorkel are: Answer:
Length and diameter
⩥ Diving equipment should be: Answer: Rinsed thoroughly, dried and
stored in a cool, dark, dry place.
⩥ Open heel fins are usually the fins of choice for scuba divers because:
Answer: They can be used in a wide variety of environmental conditions
⩥ Engraved markings on scuba tanks include: Answer: Date of
hydrostatic test, serial number, type of material
⩥ Scuba tanks should always have some pressure in them to prevent:
Answer: Moisture from entering
⩥ Two types of materials scuba tanks are made from are steel and:
Answer: Aluminum
, ⩥ (T/F) Hydrostatic and visual inspection standards are different around
the world. Answer: True
⩥ The ____ line is the direction of travel line on the compass. Answer:
Lubber
⩥ The stage of the regulator which reduces working tank pressure to
intermediate pressure is: Answer: The first stage
⩥ When rinsing a regulator it is best to: Answer: Leave the regulator
attached to the tank or have the dust cap in place
⩥ You should have your regulator serviced by a certified repair
technician: Answer: As recommended by the manufacturer
⩥ A diving watch must be able to withstand pressure and measure
_____. Answer: Elapsed time
⩥ A ____ calculates your remaining allowable bottom time while diving.
Answer: Dive Computer
⩥ Three main types of ____ are back floatation, jacket, and horse collar.
Answer: Buoyancy Compensators (BCs)
PREP STUDY SHEET 2026 PRACTICE
SOLUTION FULL ANSWER KEY SOLVED
QUESTIONS
⩥ Factors that can affect the breathing ease of a snorkel are: Answer:
Length and diameter
⩥ Diving equipment should be: Answer: Rinsed thoroughly, dried and
stored in a cool, dark, dry place.
⩥ Open heel fins are usually the fins of choice for scuba divers because:
Answer: They can be used in a wide variety of environmental conditions
⩥ Engraved markings on scuba tanks include: Answer: Date of
hydrostatic test, serial number, type of material
⩥ Scuba tanks should always have some pressure in them to prevent:
Answer: Moisture from entering
⩥ Two types of materials scuba tanks are made from are steel and:
Answer: Aluminum
, ⩥ (T/F) Hydrostatic and visual inspection standards are different around
the world. Answer: True
⩥ The ____ line is the direction of travel line on the compass. Answer:
Lubber
⩥ The stage of the regulator which reduces working tank pressure to
intermediate pressure is: Answer: The first stage
⩥ When rinsing a regulator it is best to: Answer: Leave the regulator
attached to the tank or have the dust cap in place
⩥ You should have your regulator serviced by a certified repair
technician: Answer: As recommended by the manufacturer
⩥ A diving watch must be able to withstand pressure and measure
_____. Answer: Elapsed time
⩥ A ____ calculates your remaining allowable bottom time while diving.
Answer: Dive Computer
⩥ Three main types of ____ are back floatation, jacket, and horse collar.
Answer: Buoyancy Compensators (BCs)
