Scuba Certification Exam | Questions
and Verified Answers Rated and Graded
A+ | 2024/2025
How do I care for scuba equipment? - Correct Answer - inspect,
rinse, keep out of direct sunlight for extended periods,
Why do I need a mask - Correct Answer - to see, eyes to focus,
provides air space
Mask must enclose nose because - Correct Answer - mask
creates an air space, enclose nose because it needs to be
equalized
What four equipment systems make my scuba kit? - Correct
Answer - 1) BCD
2) Regulator
3) Weight System
4) Cylinder
The LPI mechanism inflates the BCD with air from the scuba
cylinder - Correct Answer - True
, Section 2 - Correct Answer -
How does being underwater affect the apparent size or distance
of things? - Correct Answer - - waters density causes light to
change direction (refraction)
- magnifies things by about 1/3 -- makes things look larger, closer,
or both
How does water affect light intensity and color? - Correct Answer -
- water reflects, scatters, and absorbs light, so deeper-->darker
- water absorbs some colors before other, objects become more
colorful as you get closer
How does hearing differ underwater? - Correct Answer - sounds
travel 4x faster, travel over longer distances
How does density affect motion in water? - Correct Answer - takes
4x as much energy to double your speed
trim - Correct Answer - your balance in the water; correct amount
and placement of weight
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