Section 3 Flashcards
I can enjoy diving in many different aquatic environments that include coral reefs, flooded quarries and human made dive environments
True/false
True
Conditions that may affect me while diving include (choose all that apply) A. Temperature B. Water movement C. Sunlight D. Aquatic life E. Bottom composition
All of them
In most (but not all) environments, as I go deeper the water gets
A. Warmer
B. Colder
C. Fresher
B. Colder
Although somewhat subjective, I measure visibility as how far I can see ____ underwater
A. Horizontally
B. Vertically upward
C. Vertically downward
A. Horizontally
Particles made of fine material affect visibility by
A. Remaining suspended for long periods
B. Settling out of the water relatively quickly
C. Being easily disturbed by fin kicks or natural forces
A. Remaining suspended for long
When diving in reduced visibility, it’s a good idea to descend and ascend with a reference
True/false
True
When diving in clear water, I don’t have to worry as much about staying close to my buddy
True/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/false
True
When diving in a mild current, normally I want to begin my dive ____ the current
A. Across
B. Headed into
C. Going with
B. Headed into
If I were caught in a current and carried downstream past my planned exit, I would swim ____ the current
A. Across
B. Headed into
C. Going with
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
B. Descend to the bottom and swim against the current there
C. Alternately fight the current and rest by towing each other
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
All of them
The most common injury divers suffer may be
A. Lung overexpansion
B. Aquatic animal bites
C. Sunburn
C. Sunburn
Within the recreational depth range, very distinct temperature changes are the most common in ____ water environments
A. Salt
B. fresh
B. Fresh
I learn to assess dive conditions by reading dive magazines and online sources about diving
True/false
False
You learn to assess dive conditions based on what other divers and your instructor show you, and based on experience diving and continuing your education
If any aspect of a dive, including my assessment of the environment, causes me significant concern and/or anxiety, I should
A. Be very cautious during the dive
B. Determine how to handle the concern, or not dive
C. Continue if my buddy has no concerns
B. Determine how to handle the concern, or not dive
Local orientations are important for safety and for
A. Making my dives more enjoyable
B. Letting me try out new gear
C. Meeting new buddies
A. Making my dives more enjoyable
You may sometimes get to use new gear and/or meet new buddies when diving in a new environment, but an orientation is always important for safety and enjoyment
“diving within my limits” simply means diving with the limits of my (choose all that apply)
A. Training
B. Experience
C. Comfort
All of them
One way to exceeding my limits can increase my risk is by exposing me to hazards that I’m not prepared to handle or may not even recognize until it’s too late
True/false
True
Diving with an experienced diver and gaining dive experience are two ways to generally expand my limits, but they don’t replace training for activities that require training
True/false
True
While planning a dive, my buddy (who is not an instructor) suggests that we dive significantly deeper than I have either training or experience wit. My best response is to
A. Agree if my buddy has enough experience diving that deep
B. Make the dive but be prepared to abort at any time
C. Politely say “no” and propose a depth limit appropriate for my limits
C. Politely say “no” and propose a depth limit appropriate for my limits
The type of interaction I should generally have with aquatic life is
A. Active
B. Passive
B. Passive
Potentially hazardous aquatic animals are, broadly, those that \_\_\_\_ and those that \_\_\_\_. A. Attack, flee B. Bite, sting C. Sting/puncture, bite D. Attack, sting/puncture
C. Sting/puncture, bite
Nearly all injuries from aquatic life result from A. Human carelessness B. Breeding behavior C. Species aggression D. Spearfishing
A. Human carelessness