Free Scuba Diving Open Water Question and Answers

Question 1

Where would you carry an octopus as a backup air source?

Accepted Answer

attached in the triangle area between your chin and the corners of your rib cage

Answer

The 'octopus,' or secondary regulator, should be carried in the triangle area between your chin and the corners of your rib cage for immediate accessibility. This placement ensures that it is easily visible and can be quickly deployed by either the diver or a buddy in an emergency air-sharing situation. Quick access is crucial for safety during a dive.

Question 2

Decompression Sickness (DCS) is a condition that could be dangerous. What changes in the blood and tissues lead to DCS?

Accepted Answer

Nitrogen Bubbles

Answer

Decompression Sickness (DCS) is caused by nitrogen bubbles forming in the blood and tissues. During a dive, inert gases like nitrogen dissolve into the body under pressure. If a diver ascends too quickly, the rapid decrease in pressure causes these dissolved gases to come out of solution and form bubbles, which can obstruct blood flow and damage tissues.

Question 3

Sometimes what you see underwater appears _________ from what you would see on the surface.

Accepted Answer

Larger and closer

Answer

Due to the refractive properties of water, objects underwater appear larger and closer than they actually are. Water causes light to bend differently than air, creating an optical illusion that magnifies and shortens distances. Divers must account for this effect to accurately judge distances and sizes underwater.

Question 4

A thing in water that doesn't float or sink is

Accepted Answer

Neutrally Buoyant

Answer

A thing in water that doesn't float or sink is neutrally buoyant. This state occurs when the buoyant force acting on an object is exactly equal to its weight, allowing it to remain suspended at a particular depth. Achieving neutral buoyancy is a fundamental skill for divers, enabling them to hover effortlessly and conserve energy.

Question 5

As a newly certified Open Water Diver, how deep can you dive?

Accepted Answer

18 meters/60 feet

Answer

As a newly certified Open Water Diver, the maximum recommended depth limit is 18 meters (60 feet). This depth restriction is set by certifying agencies to ensure new divers gain experience and develop their skills within a safe and manageable environment. Deeper dives require additional training and advanced certifications.

Scuba Diving Practice Test

Scuba Diving Practice Test

Free Scuba Diving Open Water Question and Answers