1. Fins that have a full foot pocket and are used primarily in warm water are called?

composite fins
adjustable fins
open heel fins
full foot fins

2. The majority of power from using fins comes on the ________?

depends on the diver
either the upstroke or downstroke
upstroke
downstroke

3. The one way valve that allows divers to remove water from their mask is called a ________?

purge valve
release valve
outlet valve
lens valve

4. The lenses of most masks are made from  ________?

tempered glass
plexi-glass
lexsan
poly carbonate

5. The skirt on most masks are made from ______?

rubber
silicon
neoprene
poly vinyl glycol

6. A dry snorkle _________?

drains quickly after use
keeps water completely out of the snorkle
does not breath wet during use
is made from poly vinyl glycol

7. Unlike swimming goggles, a mask encloses the nose because _____?

it looks more aesthetically pleasing
it allows the diver to clear his or her ears
it allows the diver to equalize the air space inside the mask
it offers better protection for the face

8. A new mask is treated with toothpaste ________?

to clean the lenses and allow for better vision
to remove glue from stickers
to prevent condensation
to prevent bacterial growth

9. The snorkle is worn on the _________?

left side
right side
either side
all of the above

10. Long term exposure to sunlight can cause the silicon in a mask or snorkle to _______?

turn yellow
turn black
disintegrate
split into layers