Below you will find 20 questions, selected randomly from our database. Choose the best answer to each of the questions. Once you answered all questions, enter your first name and your email address. You receive the score for all questions, and – if you should have mistakes – the correct answers by email.

Question	Options	Answer
If a balloon with a volume of 6 liter is brought from the surface to a depth of 20 meters, what would be the new volume?	A: 2 liter B: 3 liter C: 6 liter D: 18 liter	?ABCD
A diver arriving at a dive site with unfamiliar conditions, should participate in _________, regardless the certification level of the diver:	A: Scuba Review B: Scuba Tune-up Program C: Discover Local Diving D: Discover Scuba Diving	?ABCD
How many compartments are the RDP using for the special rules for many shallow dives and the dive planning?	A: 1 B: 6 C: 14 D: 18	?ABCD
When performing the controlled emergency swimming ascent the student have to:	A: Drop the weight belt and then swim as fast as possible against the surface while continuously making an aaaaah sound B: Drop the regulator and swim to the surface emitting an aaaaah sound C: Ascent to the surface with an normal ascent rate with all the equipment in place and emitting an aaaaaah sound D: Keeping all equipment in place, ascent to the surface with the help from a rope, while emitting an aaaah sound	?ABCD
A 12 liter scuba cylinder is filled at 200 bar at a temperature of 61 °C. Over night, the temperature drops to 11 °C. What is the pressure of the cylinder now?	A: 150 bar B: 170 bar C: 230 bar D: 235 bar	?ABCD
Which factors can contribute to decompression illness?	A: Altered circulation B: Increased metabolism C: A and B are correct D: High water temperature	?ABCD
If you equalize to strong using the valsalva method, you risk:	A: a ruptured eardrum. B: a lung over expansion injury. C: an round window rupture. D: an oval window rupture.	?ABCD
Which is the first color we can not recognize anymore when descending?	A: Green B: Yellow C: Red D: This depends if it is fresh or salt water	?ABCD
What does the stamp 200/300, on the neck of the cylinder, mean?	A: You can fill the cylinder to 200 bar and the cylinder have to be tested at 300 bar B: You can fill the cylinder to 300 bar and the cylinder have to be tested at 200 bar C: It is only allowed to test the cylinder at 2/3 of the allowable working pressure D: It is not possible to answer with the given information’s	?ABCD
What should you do, if you have a person who have had a near drowning accident but says that he feels all right:	A: Send the person to a medical clinic for further observations B: Give the patient something to drink C: Bring the person with on the next dive D: Transport the person to the nearest recompression chamber	?ABCD
Because of _________________ you see less contrast under water than you do in air.	A: refraction B: reflection C: absorption D: diffusion	?ABCD
What is meant by “fail-safe”?	A: The exhale air goes out into the water B: The air is delivered with surrounding pressure C: In the case of an malfunction the regulator stops giving air D: In case of an malfunction the regulator begins to free-flow	?ABCD
If a scuba cylinder contains 20 % of oxygen at the surface, what is the oxygen percentage at a depth of 30 meters?	A: 60% B: 80% C: 5% D: The same as at the surface	?ABCD
Breathing 1% carbonmonoxide (CO) at a depth of 30 meters has the same effect as breathing a gas with ____ % of carbonmonoxide at the surface.	A: 1 B: 2 C: 3 D: 4	?ABCD
The best time to do an dive is _____ because you have most____.	A: in the morning / dawn active animals B: during a storm / water movement C: at midday / light u/w D: when the ocean is calm / animals	?ABCD
Why can the RDP use an faster controlling compartment for the surface intervals?	A: Because you can’t plan any extreme and/or decompression dives with table 1 B: Because any dive that are shallower than 10 meters are calculated as a dive to 10 meters C: With the special rules for W, X, Y and Z the risk of an saturation of the 120 min. compartment is minimized D: All of the answers above is correct	?ABCD
A 5 minute compartment has reached (approached) the equilibrium with the surrounding pressure, in ______ minutes after arriving in an environment with a different pressure.	A: 5 minutes (because it is the 5 minute compartment) B: 30 minutes (because there are 6 periods) C: 70 minutes (because the RDP has 14 compartments) D: 10 minutes (because that completes 2 halftimes ½ + ½ = 1 complete)	?ABCD
If a balloon with a volume of 4.5 liter is brought from 14 meters depth to a depth of 37 meters, what would be the new volume?	A: 2.3 liter B: 8.8 liter C: 4.5 liter D: 2.1 liter	?ABCD
If blood soaks trough a bandage when you take care of a bleeding patient, you should:	A: apply a pressure point. B: apply a tourniquet. C: remove the bandage and place a new one and continue to apply direct pressure D: place a new bandage on top of the first and continue to apply direct pressure.	?ABCD
If you have an diver suspected of having decompression illness, which of the following procedures should you NOT follow:	A: Let the person lay down and donate O2 B: Perform first aid and contact the EMS C: Encourage the person to take a hot shower and move a lot around to eliminate N2 bubbles D: Perform first aid	?ABCD
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