Scuba Diving Final Exam (2025/2026) UPDATE|EXAM
QUESTIONS WITH MULTIPLE CHOICES |VERIFIED &
REVISED ANSWERS (NEW)!!
What will the buoyancy of an object be (positive, neutral, or negative) if it
displaces an amount of water:
a. more than its own weight?
b. less than its own weight?
c. equal to its own weight? - (ANSWER)a. positive
b. negative
c. neutral
How does the buoyancy of an object differ in fresh water compared to salt water.
- (ANSWER)Because salt water weighs more than fresh water, it causes more
buoyancy (more upward force)
What is the relationship between increasing and decreasing depth and water
pressure? - (ANSWER)With increasing depth the water pressure increases. With
decreasing depth the water pressure decreases.
What are the absolute pressures, air volume, and air density in atmospheres, for:
a. 10m/33ft
b. 20m/66ft
b. 30m/99ft
, c. 40m/132ft - (ANSWER)a. 2 bar/ata, 1/2, x 2
b. 3 bar/ata, 1/3, x 3
c. 4 bar/ata, 1/4, x4
d. 5 bar/ata, 1/5, x5
What is the relationship between air volume and density, and how do they vary
according to this relationship when pressure increases or decreases? -
(ANSWER)Air volume and density change proportionately with pressure. As
pressure increases, air volume decreases, and air density increases. As pressure
decreases, air volume increases, and air density decreases.
What is a "squeeze"? - (ANSWER)A pressure imbalance that pushes tissues into
an air space.
What is "equalization"? - (ANSWER)The process of adding air to an air space.
What are the three ways you can equalize air spaces during descent? -
(ANSWER)1. pinch your nose and blow gently against it
2. wiggling your jaw side-to-side and swallowing
3. blow air into mask through your nose
How often should you equalize during descent? - (ANSWER)Frequently
QUESTIONS WITH MULTIPLE CHOICES |VERIFIED &
REVISED ANSWERS (NEW)!!
What will the buoyancy of an object be (positive, neutral, or negative) if it
displaces an amount of water:
a. more than its own weight?
b. less than its own weight?
c. equal to its own weight? - (ANSWER)a. positive
b. negative
c. neutral
How does the buoyancy of an object differ in fresh water compared to salt water.
- (ANSWER)Because salt water weighs more than fresh water, it causes more
buoyancy (more upward force)
What is the relationship between increasing and decreasing depth and water
pressure? - (ANSWER)With increasing depth the water pressure increases. With
decreasing depth the water pressure decreases.
What are the absolute pressures, air volume, and air density in atmospheres, for:
a. 10m/33ft
b. 20m/66ft
b. 30m/99ft
, c. 40m/132ft - (ANSWER)a. 2 bar/ata, 1/2, x 2
b. 3 bar/ata, 1/3, x 3
c. 4 bar/ata, 1/4, x4
d. 5 bar/ata, 1/5, x5
What is the relationship between air volume and density, and how do they vary
according to this relationship when pressure increases or decreases? -
(ANSWER)Air volume and density change proportionately with pressure. As
pressure increases, air volume decreases, and air density increases. As pressure
decreases, air volume increases, and air density decreases.
What is a "squeeze"? - (ANSWER)A pressure imbalance that pushes tissues into
an air space.
What is "equalization"? - (ANSWER)The process of adding air to an air space.
What are the three ways you can equalize air spaces during descent? -
(ANSWER)1. pinch your nose and blow gently against it
2. wiggling your jaw side-to-side and swallowing
3. blow air into mask through your nose
How often should you equalize during descent? - (ANSWER)Frequently
