IANTD Open Water Diver Review Questions with Complete Solutions Graded A+
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Course
Open water diver
Institution
Open Water Diver
IANTD Open Water Diver Review Questions with Complete Solutions Graded A+
What is the most important thing to look for in a mask - Answers Fit, ability to pinch nose, tempered glass
Name two ways to optically correct a mask - Answers Contact Lenses, change mask lenses
Name the two types of fins ...
IANTD Open Water Diver Review Questions with Complete Solutions Graded A+
What is the most important thing to look for in a mask - Answers Fit, ability to pinch nose, tempered
glass
Name two ways to optically correct a mask - Answers Contact Lenses, change mask lenses
Name the two types of fins normally found on the market. - Answers Full foot, open heel
What are the two kicks normally used with the fins? - Answers Flutter kick and mermaid kick
Why should a snorkel not be over 18"? - Answers You won't be able to clear C02
What are two ways to inflate a B.C.? - Answers Power inflate, orally inflate
How is it preferred a B.C. should float you in an emergency? - Answers Head up
How does a wetsuit keep you warm? - Answers Traps a thin layer of water between your skin and the
suit.
What happens to a diver wearing a wetsuit as they ascend? - Answers Buoyancy will increase
What are the two main materials tanks are made of? - Answers Steel and aluminum
In the tank marking CTC/DOT 3AA 2250 what does the 3AA stand for? - Answers 3AA Stands for steel
In the tank marking CTC/DOT 3AL 3000 what does the 3000 stand for? - Answers 3000 PSI
In the tank marking 9X94+ what does the plus stand for? - Answers You can overfill the tank by 10%
How often should a tank hydro test be performed? - Answers Every 5 years
How often should a visual tank inspection be performed? - Answers Once a year
What is a K valve? - Answers A simple on/off valve
What is a J valve? - Answers A valve with a built in reserve switch
Name the two types of activating mechanisms in our regulator. - Answers Piston or diaphram
What kind of regulators do recreational divers use? - Answers demand regulators
How often should a regulator be professionally serviced? - Answers Once a year
List the 3 main gasses in air and their percentage - Answers A. Oxygen 20% B. Nitrogen 79% C. Carbon
Dioxide .03%
What is the gas we do not want in our air supply and why? - Answers Carbon monoxide, carbon
monoxide poisoning
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