PADI Open Water Diver 5

Question 1

What is the function of a submersible pressure gauge (SPG)?

Accepted Answer

Shows how much air remains in the scuba cylinder

Answer

The SPG displays the remaining cylinder pressure so the diver can monitor air supply throughout the dive.

Question 2

Which hand signal means 'go up' or 'ascend' when used underwater?

Accepted Answer

Thumbs up

Answer

The thumbs up signal is the universally recognized underwater sign to ascend or end the dive.

Question 3

What should a diver do if they lose sight of their buddy underwater?

Accepted Answer

Search for one minute, then ascend slowly and meet at the surface

Answer

PADI's buddy separation protocol is to search for approximately one minute, then slowly ascend and reunite at the surface.

Question 4

When is it most important to breathe continuously and never hold your breath while scuba diving?

Accepted Answer

At all times, especially during ascent, to avoid pulmonary barotrauma

Answer

Holding your breath while ascending can cause expanding air to rupture lung tissue (pulmonary barotrauma), so breathing continuously is essential at all times.

Question 5

What does negative buoyancy mean for a diver?

Accepted Answer

The diver sinks because overall weight exceeds buoyancy force

Answer

Negative buoyancy means the diver is heavier than the water displaced, causing them to sink without actively swimming upward.

PADI - Professional Association of Diving Instructors Practice Test

PADI - Professional Association of Diving Instructors Practice Test

PADI Open Water Diver 5