Smooth, rounded bends A properly adjusted snorkel _ remains in your mouth with a relaxed jaw An easy breathing snorkel has which features? Large Bore In case you have a long swim with an empty cylinder. Make it easier to breathe when the surface is rough Storing in a coll, dry place You need a snorkel when scuba diving: to conserve air while swimming or resting at the surface Wide vision field The most important factors when buying a mas (and other dive gear): Fit and comfort To prepare a new mask for use: scrub off the protective film left from manufacturingĪdjust the strap Maintenance for your mask (and most dive gear) includes: Rinsing in fresh water after use (T/F) False You need a mask to see underwater because The human eye can't focus underwater A mask needs to enclose your nose: so you can equalize the mask The features you look for in a mask include Low profile

Faster The most efficient method for breathing underwater is rapid and shallow. As you go deeper, you consume air from your scuba cylinder _. If you feel discomfort during ascent due to a reverse block, you should: slow or stop your ascent and give the trapped air time to work its way out. (T/F) True The most important rule in scuba diving is: Breathe continuously and never hold your breath (T/F) True Ascending while holding your breath: Can cause lung overexpansion injuriesĬan cause serious injuries, including paralysis and deathĬauses injuries that are easy to avoid by not holding your breath A reverse block is: Pain and discomfort caused by expanding air trapped inside an air space during ascent. Which are techniques for equalizing your ears? Pinch your nose and blow gently against it, swallow and wiggle your jaw from side to side You want to equalize your ears? Every metre/few feet before you feel discomfort If you feel discomfort and can't equalize, ascend until you relieve the discomfort and try again.

Padi open water exam quizlet