Basic Scuba NAUI Exam | Verified Exam Questions and Answers | Latest Updated Study Material 2026

Basic Scuba NAUI Exam | Verified Exam Questions and Answers | Latest
Updated Study Material 2026

Question:

The density of water is _____ more dense than air
Answer:

800

Question:

The stage of the regulator which reduces tank pressure is ...
Answer:

---- The
first stage

Question:

Because of refraction, objects underwater appear and when the diver is
looking through his/her mask.
Answer:

larger; closer

Question:

The predictable daily rise and fall of the ocean at a single point is called
Answer:

- The tide

Question:

A regular breathing pattern while diving would be
Answer:

---- Slightly
slower and deeper than you normally breathe

Question:

Light is as depth
Answer:

--- absorbed as

, depth increases

Question:

Which gas law best explains diving medical problems such as ear and sinus squeeze?
Answer:

Boyle's law

Question:

colors fade underwater, while colors remain
Answer:

WARM colors fade, COOL colors remain

Question:

Sound travels x faster underwater and seems
Answer:

travels 4x faster and seems OMNIDIRECTIONAL

Question:

Heat is lost x in water
Answer:

4X FASTER

Question:

You should swim with and present
Answer:

PROPER HORIZONTAL TRIM,
MINIMUM SURFACE AREA

Question:

How much does one cubic foot of sea water weigh?
Answer:

64LBS