PADI Exercise 3-1 Flashcards
I can enjoy diving in many different aquatic environments that include coral reefs, flooded quarries and human-made dive environments. True of False?
True
Conditions that may affect me while doing include (choose all that apply):
(a), temperature, (b) water movement, (c) sunlight, (d) aquatic life, (e) bottom composition
In most (but not all) environments, as I go deeper the water gets
(b) cooler
Although somewhat subjective, I measure visibility as how far I can see ___ underwater
(a) horizontal
Particles made of fine material affect visibility by
(a) remaining suspended for long periods
When diving in reduced visibility, it’s a good idea to descend and ascend with a reference. True of False?
True
When diving in clear water, I don’t have to worry as much about staying close to my buddy. True of False?
False. In clear water, you may get too far from your buddy because you can still see each other. As a rule of thumb, stay within two seconds of each other.
The two types of water motion that most affect me as a diver are waves and current. True of False?
True
When diving in a mild current, normally I want to begin my dive _____ the current
(b) headed into
If I were caught in a current and carried downstream past my planned exit, I should swim _____ the current.
(a) across
Due to a problem, my buddy and I had to surface away from the boat. There is a current, so we swam across it to reach the line trailed from the boat, but the current pushed us too quickly. To avoid overexertion, we should ___
(a) establish positive buoyancy, signal the boat to pick us up and remain calm
When I’m diving, I want to avoid bottom contact because (choose all that apply):
(a) it helps keep the water clearer, (b) there may be some hazard of cuts, scrapes or stings, (c) fragile aquatic life could be damaged
The most common injury divers suffer may be ___
(c) sunburn
Within the recreational depth range, very distinct temperature changes are most common in ____ water environments.
(b) fresh
