NAUI Underwater Skills & Safety Procedures 3

Question 1

During a safety stop at 15 feet (5 meters), a diver's computer shows they have exceeded their no-decompression limit. The diver should:

Accepted Answer

Extend the safety stop until the computer clears the obligation

Answer

If a diver inadvertently exceeds NDL limits, extending the safety stop allows additional nitrogen off-gassing before surfacing.

Question 2

What is the purpose of the pre-dive buddy check (often remembered as BWRAF)?

Accepted Answer

To verify all equipment is functioning and both divers are prepared

Answer

The BWRAF buddy check (BCD, Weights, Releases, Air, Final check) ensures all equipment is properly configured before entering the water.

Question 3

A diver experiencing nitrogen narcosis at depth is most likely to exhibit which behavior?

Accepted Answer

Impaired judgment and euphoria similar to alcohol intoxication

Answer

Nitrogen narcosis impairs cognitive function and can cause euphoria, poor decision-making, and loss of coordination at depth.

Question 4

When ascending from a dive, the maximum recommended ascent rate according to most training agencies is:

Accepted Answer

30 feet (9 meters) per minute or slower

Answer

Most agencies, including NAUI, recommend ascending no faster than 30 feet (9 meters) per minute to allow adequate nitrogen elimination.

Question 5

A diver who surfaces far from the boat in a current should:

Accepted Answer

Inflate SMB, conserve energy, and signal for pickup

Answer

Inflating an SMB (surface marker buoy) makes the diver visible while conserving energy is essential in a current.

(NAUI) National Association of Underwater Instructors Certification Practice Test