PADI Deep Diving Techniques & Planning 2

Question 1

When planning a deep dive to 100 feet, which factor most critically determines your maximum bottom time?

Accepted Answer

No-decompression limit (NDL)

Answer

Water temperature

Answer

Visibility conditions

Answer

Current strength

Question 2

What is the recommended maximum ascent rate during a deep dive?

Accepted Answer

30 feet per minute

Answer

60 feet per minute

Answer

100 feet per minute

Answer

45 feet per minute

Question 3

A diver at 100 feet suddenly feels task-loaded and anxious. What is the MOST likely contributing factor?

Accepted Answer

Nitrogen narcosis

Answer

Hypothermia onset

Answer

Oxygen toxicity

Answer

Carbon dioxide buildup from skip-breathing

Question 4

During pre-dive planning for a deep dive, what rule governs how you divide your air supply?

Accepted Answer

The rule of thirds

Answer

The 50/50 rule

Answer

The rule of halves

Answer

The 25% reserve rule

Question 5

Which condition is a contraindication for deep diving and requires medical evaluation before participation?

Accepted Answer

A history of spontaneous pneumothorax

Answer

Mild sunburn

Answer

Mild seasickness

Answer

Recent ear infection that has fully resolved

Question 6

What is the PRIMARY reason deep divers should carry an audible and visual surface signaling device (DSMB)?

Accepted Answer

To signal their position to surface support when surfacing far from the boat

Answer

To mark the dive site for navigation

Answer

To scare away marine life

Answer

To measure ascent rate

Question 7

On a deep dive profile, what is the purpose of a safety stop at 15 feet for 3 minutes?

Accepted Answer

To allow additional nitrogen off-gassing and reduce DCS risk

Answer

To equalize ear pressure before surfacing

Answer

To check buoyancy before entering the boat

Answer

To conserve remaining air supply