SCUBA DIVING FINAL EXAM QUESTIONS
BANK NEWEST ACTUAL EXAM COMPLETE 75
QUESTIONS AND CORRECT ANSWERS 2025.
Terms in this set (75)
What will the buoyancy of an a. positive
object be (positive, neutral, b. negative
or negative) if it displaces an c. neutral
amount of water:
a. more than its
ownweight?
b. less than its
ownweight?
c. equal to its own
weight?
How does the buoyancy Because salt water weighs more than fresh water, it causes
of an object differ in fresh more buoyancy (more upward force)
water compared to salt
water.
What is the relationship With increasing depth the water pressure increases.
between increasing and With decreasing depth the water pressure decreases.
decreasing depth and
water pressure?
a. 2 bar/ata, 1/2, x 2
What are the absolute b. 3 bar/ata, 1/3, x 3
pressures, air volume, and air c. 4 bar/ata, 1/4, x4
density in atmospheres, for: d. 5 bar/ata, 1/5, x5
a. 10m/33ft
b. 20m/66ft
b. 30m/99ft
c. 40m/132ft
, What is the relationship Air volume and density change proportionately with pressure.
between air volume and As pressure increases, air volume decreases, and air density
density, and how do they increases. As pressure decreases, air volume increases, and air
vary according to this density decreases.
relationship when pressure
increases or decreases?
What is a "squeeze"? A pressure imbalance that pushes tissues into an air space.
What is "equalization"? The process of adding air to an air space.
What are the three ways you 1. pinch your nose and blow gently against it
can equalize air spaces 2. wiggling your jaw side-to-side and swallowing
during descent?
3. blow air into mask through your nose
How often should you Frequently
equalize during descent?
What three steps should you 1. stop your descent
take if you feel discomfort in 2. signal your buddy(ies)
an air space while
3. ascend slightly until the discomfort passes and tryagain
descending?
What is the most to breathe continuously and never, ever hold your breath
important rule in scuba
diving?
What are the consequences lung overexpansion injuries
of breaking the most
important rule in scuba
diving?
How does increasing it shortens it
depth affect how long
your air supply lasts?
take slow, deep breaths
What's the most efficient
way to breathe dense air
underwater?
BANK NEWEST ACTUAL EXAM COMPLETE 75
QUESTIONS AND CORRECT ANSWERS 2025.
Terms in this set (75)
What will the buoyancy of an a. positive
object be (positive, neutral, b. negative
or negative) if it displaces an c. neutral
amount of water:
a. more than its
ownweight?
b. less than its
ownweight?
c. equal to its own
weight?
How does the buoyancy Because salt water weighs more than fresh water, it causes
of an object differ in fresh more buoyancy (more upward force)
water compared to salt
water.
What is the relationship With increasing depth the water pressure increases.
between increasing and With decreasing depth the water pressure decreases.
decreasing depth and
water pressure?
a. 2 bar/ata, 1/2, x 2
What are the absolute b. 3 bar/ata, 1/3, x 3
pressures, air volume, and air c. 4 bar/ata, 1/4, x4
density in atmospheres, for: d. 5 bar/ata, 1/5, x5
a. 10m/33ft
b. 20m/66ft
b. 30m/99ft
c. 40m/132ft
, What is the relationship Air volume and density change proportionately with pressure.
between air volume and As pressure increases, air volume decreases, and air density
density, and how do they increases. As pressure decreases, air volume increases, and air
vary according to this density decreases.
relationship when pressure
increases or decreases?
What is a "squeeze"? A pressure imbalance that pushes tissues into an air space.
What is "equalization"? The process of adding air to an air space.
What are the three ways you 1. pinch your nose and blow gently against it
can equalize air spaces 2. wiggling your jaw side-to-side and swallowing
during descent?
3. blow air into mask through your nose
How often should you Frequently
equalize during descent?
What three steps should you 1. stop your descent
take if you feel discomfort in 2. signal your buddy(ies)
an air space while
3. ascend slightly until the discomfort passes and tryagain
descending?
What is the most to breathe continuously and never, ever hold your breath
important rule in scuba
diving?
What are the consequences lung overexpansion injuries
of breaking the most
important rule in scuba
diving?
How does increasing it shortens it
depth affect how long
your air supply lasts?
take slow, deep breaths
What's the most efficient
way to breathe dense air
underwater?
