PADI Dive Skills 4

Question 1

A diver is negatively buoyant and sinking uncontrollably at depth. What is the correct immediate response?

Accepted Answer

Add air to the BCD in short bursts until descent stops, then establish neutral buoyancy

Answer

Adding air to the BCD in short bursts is the controlled response to an uncontrolled descent, allowing the diver to stop sinking and regain neutral buoyancy.

Question 2

Which of the following situations would most likely require a diver to perform an emergency weight drop?

Accepted Answer

Being unable to establish positive buoyancy at the surface despite a fully inflated BCD

Answer

Ditching weights is appropriate when a diver cannot achieve positive buoyancy at the surface with a fully inflated BCD, as staying afloat is the priority.

Question 3

What does a momentary positive pressure test on a regulator first stage confirm before a dive?

Accepted Answer

There are no leaks at the first stage-to-tank connection

Answer

Pressurizing the first stage and checking for hissing sounds confirms the valve-to-first-stage connection is leak-free before the dive.

Question 4

When conducting an underwater search using a circular search pattern, what is the diver's role who holds the line at the center?

Accepted Answer

To pull the searching diver back if needed and pay out additional line each circle

Answer

The pivot diver holds the center, feeds out additional line after each sweep, and can pull the searcher in if needed to recover an object or in an emergency.

Question 5

A scuba diver experiences a sudden reverse block (pain or pressure) in the ear during ascent. What should the diver do?

Accepted Answer

Descend slightly until the pain resolves, then ascend very slowly

Answer

Descending slightly relieves the overpressure in the middle ear; the diver can then ascend very slowly, allowing the Eustachian tube to equalize.

PADI - Professional Association of Diving Instructors Practice Test

PADI - Professional Association of Diving Instructors Practice Test

PADI Dive Skills 4