Night Diver

Knowledge Review - Part 1

General recommendation for using new or unfamiliar equipment is to use it during the day to become familiar with it.

Three uses for marker lights and where they are attached for those uses:

When considering and evaluating a potential dive site for night diving, it is preferable to avoid an unfamiliar site at night.

Six environmental conditions you should avoid when night diving:

Four general night diving planning considerations:

If you experience stress, light failture, buddy separation or disorientation while night diving

Briefly describe the procedures for entering the water at night from a boat and from shore:

Proper techniques for descending or ascending at night as to avoid disorientation and undue stress:

Methods of communication while night diving:

Navigational techniques used to avoid disorientation and loss of direction while night diving include paying attention to:

Knowledge Review - Part 2

Do not make overhead environment dives at night!

Night diving considerations that apply to your personal dive equipment include:

It’s important to carry at least two dive lights because they aren’t as consistently reliable and may fail.

Advantages and disadvantages of non-rechargeable batteries in dive lights:

Advantages and disadvantages and rechargeable batteries in dive lights:

Maintain a dive light by:

If your dive light floods:

Three uses for marker lights:

Underwater strobes can be used to spot a float, reference light or boat from a long distance. You can also put them above water on float or boat for easy identification at surface.

Two uses for surface support lights:

Be courteous while night diving by keeping noise to a minimum when gearing up/down. Underwater, do night shine you lights in divers’ eyes.