Scuba Quiz 2

Ch. 7-10

Open heel fins

• Fins have foot pocket and heal strap.

• Designed to be used with wet suit boots.

Full-foot fins

• Enclose your entire foot in pocket.

• Not well suited for diving in cold water or from rocky shores.

Wetsuit

• Surround divers in one or more layers of low-density, neoprene foam insulation.

• Must fit snugly

• do not insulate well in air.

Drysuit

• For water below 10 degrees C.

• Worn over thermal garments.

• Neck and wrist seals.

Purpose of a snorkel?

Allows you to swim face down without using air from your cylinder.

Types of weight systems:

• Weight-integrated BC

• Conventional weight belts

BCD

Buoyancy Control Device

The dive flags

• Red “diver-down” flag

• Blue international (alpha) flag

How often should a visual inspection be?

Every year

How often should a hydrostatic test be done?

Every 5 years to test metal integrity

Function of a scuba regulator first stage?

Reduces high cylinder pressure to breathable levels.

Function of a scuba regulator second stage?

Reduces pressure air from first stage to ambient pressure.

Modes of operation of a dive computer

• Dive mode

• surface mode

Boats around dive flags

must stay 300 feet away.

Components of a compass:

• North needle

• Index marks

• Center line

• Reciprocal mark

Reasons to streamline your equipment

• better accessibility

• prevents entanglement

• protects equipment and environment

Assembly

1. Attach BC to cylinder

2. regulator attachment

3. BC inflator hose attachment

4. turn air on

5. regulator test

ABCs of diving

• Air on

• BC inflated

• Computer activated and functioning

Giant Stride

Most common deep water entry on large dive boats

Back roll

Common entry from small boat