QUESTIONS AND ANSWERS FIRM A+
✔✔Use the phrase Begin With Review And Friend to help you remember the checks: -
✔✔BCD, Weights, Releases, Air, Final Okay
✔✔Remember BWRAF — - ✔✔BCD, Weights, Releases, Air and Final okay.
✔✔Some general rules for entries include: - ✔✔1. Be sure the entry area is clear so you
don't hit anything or anyone getting in.
2. If entering water too deep to stand in, have your BCD about half-inflated so you'll be
buoyant.
3. Be sure your buddy is prepared to enter, too.
4. Hold your mask so the water doesn't knock it off. This isn't an issue with some types
of entries.
5. After entering, signal that you're okay and clear the entry area to wait for your buddy.
✔✔Descending has five steps? - ✔✔1. You and your buddy signal that you're both
ready to descend.
2. Orient yourself to something at the surface that will help you find out where you are
when you resurface.
3. Switch from your snorkel to your regulator. Do this with your face in the water.
4. Check the time/ set your watch bezel or start your stopwatch. don't have an
underwater watch, for practice look at your wrist where you would wear your watch to
simulate noting the time.
5. Slowly deflate your BCD and exhale to initiate a head up descent. Equalize your ears
immediately upon submerging and do so fre-
quently during descent. You don't need to be straight up and down like you're saluting a
general or some- thing, but staying in a generally head up position helps you stay
oriented and makes it easier to equalize.
✔✔To orally inflate the BCD: - ✔✔1. Take a breath.
2. Place the mouthpiece on the BCD hose in your mouth.
3. Open the valve by pressing the same button you use to release air.
4. Blow about two thirds of the air in your lungs into the BCD hose.
5. Release the valve button.
✔✔Proper Weighting? - ✔✔1. Enter the water with all your equipment on and your esti-
mated weight requirement.
2. Keep your regulator in your mouth, and staying at the sur- face, deflate your BCD and
hold a normal breath. Be ready to kick or hold onto something in case you've got too
much weight.
3. You should float at eye level. If not, add or subtract weight until you do. You can just
hold weights while you figure out how much you need.
4. As a final check, exhale. You'll begin to slowly descend if you're properly weighted.
, 5. If you're using a full cylinder, now add enough weight to offset the weight of the air
you use during the dive (usually about 2 kg/5 lbs with a single cylinder).
✔✔Ascent guidelines? - ✔✔Make a slow, comfortable ascent (60' a minute max) a
three-minute safety stop at 5 metres/15 feet, and reach the surface without using your
reserve. This is one of the marks of a good diver.
✔✔A proper ascent has five steps? - ✔✔1. You and your buddy signal each other and
agree to ascend.
2. Note the time of your ascent. (If you don't have a watch for this dive, simulate
checking the time by looking at your wrist.)
3. Hold your right hand over your head (so you don't run into anything) and hold up the
BCD hose with exhaust control with your left. As you'll see, air expanding in your BCD
during ascent increases your buoyancy. You need to release air as you rise to keep
your ascent under control.
4. Look up and around, slowly rotating to make sure the area above you is clear.
5. Swim up slowly, at a rate no faster than 18 metres/60 feet per minute (slower is fine),
while breathing normally.
✔✔1 ATA/BAR= - ✔✔10 meters/ 33'
✔✔Two body spaces most affected by increased water pressure?
Artifical space? - ✔✔Nose and sinuses.
Mask.
✔✔Three basic components of a scuba unit? - ✔✔Bcd, scuba tank with valve and
regulator.
✔✔Three styles of BCDs? - ✔✔Front mounted.
Back mounted.
Jacket.
✔✔What is the only reliable way to monitor your tank pressure? - ✔✔The only reliable
way to monitor your tank pressure is to use a submersible pressure gauge (SPG),
✔✔Is it safe to dive without a cylinder O ring? - ✔✔No ring = no dive
✔✔Buddy breathing who controls ascent rate? - ✔✔Doner
✔✔Sound travels ______ times faster in water. - ✔✔Four
✔✔Water conducts heat _______ times faster than air. - ✔✔20