Open Water Diver Flashcards

What does the acronym 'SEABAG' stand for in PADI dive planning?

Answer: Site conditions, Equipment, Activity, Buoyancy, Air, Gas

SEABAG is a pre-dive planning checklist covering Site conditions, Equipment, Activity, Buoyancy, Air, and Gas management.

How should a diver signal 'I'm okay' to their buddy underwater?

Answer: Circle formed with thumb and index finger (OK sign)

The OK signal underwater is made by forming a circle with the thumb and index finger, indicating all is well.

What is nitrogen narcosis most likely to impair in a diver?

Answer: Judgment, reasoning, and coordination

Nitrogen narcosis impairs judgment, reasoning, and motor coordination, similar to the effects of alcohol intoxication.

When planning a multi-level dive, which depth should be visited first?

Answer: Deepest depth first

Always dive deepest first, then progressively ascend to shallower depths to manage nitrogen accumulation safely.

What is the correct action if your regulator begins to freeflow (continuously releases air) underwater?

Answer: Breathe from the side of the mouthpiece and ascend in a controlled manner

You can breathe from a freeflowing regulator by sipping air from the side of the mouthpiece while making a controlled ascent.

What causes a 'squeeze' (barotrauma) during descent?

Answer: Water pressure compressing gas spaces that are not equalized

A squeeze occurs when increasing water pressure compresses unequalized air spaces like the ears, sinuses, or mask, causing pain or injury.

What is the recommended surface interval between dives to reduce nitrogen buildup?

Answer: At least 1 hour

PADI recommends a minimum surface interval of at least 1 hour between dives to allow nitrogen to off-gas and reduce repetitive dive risks.