NAUI SCUBA DIVER COMPREHENSIVE TEST
PAPER 2026 COMPLETE ANSWERS
ACCURATE
⫸ the stage of the regulator which reduces working tank pressure to
intermediate pressure is: Answer: the first stage
⫸ when the pressure of nitrogen is balanced between the air and your
body, you are at a state of Answer: equilibrium
⫸ Open heel fins are usually the fins of choice for scuba divers because:
Answer: they may be used in a wide variety of environmental conditions
⫸ The last thing to check before making a giant stride or any water
entry is that: Answer: area below is clear
⫸ Engraved markings on scuba tanks include: Answer: Date of
hydrostatic test, serial number, type of material
⫸ A diver's body heat is lost through conduction (primarily) at a rate of
approximately _________ times more rapidly than in air. Answer: 25
⫸ when conducting a buoyancy check, neutral buoyancy or proper
weighting is attained when, with a normal breath, you float at or near
Answer: eye level
, ⫸ sound travels about_______ times faster in water than in air Answer:
4
⫸ a regular breathing pattern while diving would be Answer: slightly
slower and deeper than you normally breathe
⫸ If a diver's surface air consumption rate is 1.72bar (25 psi) per
minute, what would be the consumption rate at 20 meters (66 feet) of
seawater? Answer: 5.16 bar per minute (75 psi per minute)
⫸ appropriate first aid measures for an unconscious scuba diver should
include consideration of Answer: drowning, air embolism, and
decompression sickness
⫸ weighting systems are used by the diver primarily to Answer: offset
the positive buoyancy created by the wet suit
⫸ Four main actions you should consider in giving first aid for diving
accidents are: Answer: maintain basic life support, call for help, treat for
shock, deliver 100% oxygen
⫸ Scuba tanks should always have some pressure in them to prevent:
Answer: moisture from entering
⫸ The following rate of ascent for diving is acceptable when using the
NAUI dive tables: Answer: 30 feet per minute
PAPER 2026 COMPLETE ANSWERS
ACCURATE
⫸ the stage of the regulator which reduces working tank pressure to
intermediate pressure is: Answer: the first stage
⫸ when the pressure of nitrogen is balanced between the air and your
body, you are at a state of Answer: equilibrium
⫸ Open heel fins are usually the fins of choice for scuba divers because:
Answer: they may be used in a wide variety of environmental conditions
⫸ The last thing to check before making a giant stride or any water
entry is that: Answer: area below is clear
⫸ Engraved markings on scuba tanks include: Answer: Date of
hydrostatic test, serial number, type of material
⫸ A diver's body heat is lost through conduction (primarily) at a rate of
approximately _________ times more rapidly than in air. Answer: 25
⫸ when conducting a buoyancy check, neutral buoyancy or proper
weighting is attained when, with a normal breath, you float at or near
Answer: eye level
, ⫸ sound travels about_______ times faster in water than in air Answer:
4
⫸ a regular breathing pattern while diving would be Answer: slightly
slower and deeper than you normally breathe
⫸ If a diver's surface air consumption rate is 1.72bar (25 psi) per
minute, what would be the consumption rate at 20 meters (66 feet) of
seawater? Answer: 5.16 bar per minute (75 psi per minute)
⫸ appropriate first aid measures for an unconscious scuba diver should
include consideration of Answer: drowning, air embolism, and
decompression sickness
⫸ weighting systems are used by the diver primarily to Answer: offset
the positive buoyancy created by the wet suit
⫸ Four main actions you should consider in giving first aid for diving
accidents are: Answer: maintain basic life support, call for help, treat for
shock, deliver 100% oxygen
⫸ Scuba tanks should always have some pressure in them to prevent:
Answer: moisture from entering
⫸ The following rate of ascent for diving is acceptable when using the
NAUI dive tables: Answer: 30 feet per minute
