PADI Open Water Section 3 Exam Questions With Correct Answers
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Course
PADI Open Water Diver
Institution
PADI Open Water Diver
What types of environments might I dive in? - Answer -coral reefs
-temperate water oceans
-lakes and reservoirs
-rivers
-springs
-flooded quarries
-human-made dive environments
What six general environmental conditions can affect me while diving? - Answer - temperature
- visibility
- wa...
PADI Open Water Section 3 Exam Questions With Correct Answers What types of environments might I dive in? - Answer -coral reefs
-temperate water oceans
-lakes and reservoirs
-rivers
-springs
-flooded quarries
-human-made dive environments
What six general environmental conditions can affect me while diving? - Answer - temperature
- visibility - water movement
- bottom composition - aquatic life
- sunlight
How can I expect depth to affect water temperature? - Answer Water gets colder the deeper you go.
The boundary between a warmer layer and a cooler deeper layer is called a thermocline.
How do I measure (define) visibility as a diver? - Answer The distance you can see horizontally underwater
What four principal factors affect visibility? - Answer - water movement - waves, current and diver fin kicks - weather - wind creates waves that stir up the bottom - plankton - can cloud the water
- bottom composition
In what three ways can reduced visibility affect me while diving? What do I do about them? - Answer - More difficult to stay with your buddies so stay close together, take your time and watch each other
- May make it harder to track where you are or where you're going. Use compass and other navigation references to stay orientated.
- May make you feel disorientated, especially when you can't see either the bottom or surface. Avoid this
by following a reference down and up. If no reference, use your dive computer.
How do I avoid the potential problems of diving in clear water? - Answer - Bottom may seem closer than it is, so monitor dive computer. May also experience vertigo if descending without a reference
- May get too far away from buddies as you can still see each other. A good rule of thumb is to be able to reach each other within two seconds.
What two types of water movement primary affect me as a diver? - Answer Waves and currents
When driving in a mild current, in what direction would I normally go? Why? - Answer Begin a dive in a mild current swimming slowly into the current. Do this so that when you turn the dive, the current will push you back to your exit point rather than away from it.
What do I do if I'm caught in a current and am carried downstream from where I planned to dive or exit the water? - Answer Swim across the current to reach shore or a line trailed from a boat, or to get out of the current
What should I do if I get caught in a surface current while diving from a boat and find myself unable to swim to the boat? - Answer Remain calm and inflate BCD (or drop weights if you have a BCD problem) Signal the boat with your whistle etc. to pick you up
What are five types of bottom compositions I'm likely to find while diving? - Answer Silt/mud
Sand
Rock
Coral
Vegetation
How do I avoid contact with the bottom? What are three reasons why it's beneficial to avoid bottom contact? - Answer - Contact tends to reduce visibility - Can present hazards - you may get cut or scrapes
- May damage aquatic organisms or environment
How does sunlight affect me as a diver? How can I avoid sunburn? - Answer You may get sunburn - avoid this by wearing suncream and protective clothing and staying in the shade as much as possible
What differences can I expect between diving in fresh water and in salt water? - Answer - Fresh water is less dense and therefore less buoyant than salt water. Recheck your weight and trim when going from fresh water to salt or vice vera
- Marine environments tend to have more aquatic life
-Very distinct thermoclines within the recreational diving depth range are more common in fresh water
- Freshwater environments are more likely to have bottoms that you can stir up easily
- Marine environments generally have more water motion - currents and waves and tides
How do I learn to assess conditions? - Answer - the weather
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