Test Your Open Water Knowledge
Quick Quiz for Open Water Divers & Scuba Divers (answers below)
Q1. What does S.C.U.B.A. stand for?
A. Sub Controlled Underwater Breathing Activity
B. Self Contained Underwater Breathing Apparatus
C. Self Contained Underpressure Breathing Activity
D. Surface Controlled Underpressure Breath Activator
Q2. Rule number 1 in SCUBA diving is ____________ ?
A. Always dive with a buddy
B. Never hold your breath
C. Always breathe deeply and quickly
D. Dive the shallowest dives first when doing multiple dives
Q3. While descending you have trouble equalising your sinus air spaces, you should:
A. Continue downward
B. Blow harder against your pinched nostrils
C. Ascend slowly until you are able to equalise
D. Abort the dive
Q4. Something underwater that does not float and does not sink, is classed as:
A. Positively buoyant
B. Negatively buoyant
C. Neutrally buoyant
D. Partially buoyant
Q5. An object that does not sink or float in fresh water will probably ___________ in salt water.
A. Float
B. Sink
C. Not sink or float
D. There is not enough information to answer the question
Q6. What does BCD stand for?
A. Breath Compensator Divider
B. Ballast Conversion Disorder
C. Big Compressor Defibrillator
D. Buoyancy Control Device
Q7. What does SPG stand for ?
A. Submersible Pressure Gauge
B. Submersible Pressure Gear
C. Subliminal Pressure Gear
D. Scuba Pressure Gear
Q8. If you are diving underwater at a depth of 10m (33ft), the pressure would be______ bar/ata?
A. 1 bar / ata
B. 2 bar / ata
C. 3 bar / ata
D. 10 bar / ata
Q9. What do you put in your mouth to allow you to breath underwater ?
A. Breathing System
B. Mouth guard
C. Regulator
D. Oxygen tube
Q10. Underwater, everything appears ________________ compared to how they would appear at the surface.
A. Smaller and more distant
B. Larger and closer
C. Closer and smaller
D. Distant and larger
Q11. You should have your alternate air source (Octopus) __________?
A. Dangling free for easy access
B. In a BCD pocket
C. Attached in the triangular area from chin to the corners of your rib cage
D. Clipped to your tank
Q12. When diving with a current, you should always start your dive by_________?
A. Swimming with the current, letting it push you
B. Swimming into the current, or against it
C. Swimming across the current, letting it push you sideways
D. None of the above
Q13. What forms in the tissues and bloodstream to cause DCS (Decompression Sickness)
A. Poisons
B. Nitrogen bubbles
C. Waste products
D. None of the above
Q14. How deep can a newly certified PADI Open Water Diver dive to?
A. 18 metres (60 ft)
B. 30 metres (100 ft)
C. 40 metres (130 ft)
D. There is no limit, I can dive as deep as I want to
Q15. How often should your SCUBA tank be visually inspected?
A. At least once a year, more frequently if used often
B. Once every two years
C. Once every five years
D. It doesn’t need to be inspected visually
Q16. You are more likely to be injured by an aquatic animal if you _____________:
A. Touch animals even if they look harmless
B. Stay off the bottom
C. Wear gloves and a wet suit
D. Watch where you put your hands and feet
Q17. Underwater sound travels __________________
A. Twice as fast
B. Slower
C. Four times faster
D. It doesn’t
Q18. Underwater visibility can be affected by:
A. Water movement
B. Weather
C. Suspended particles (floating silt) in the water
D. All of the above
Q19. Most diver injuries caused by aquatic animals happen because:
A. The animal is aggressive and a bully
B. The animal thinks you are food
C. The animal is protecting itself from you
D. You did not feed the animal
Q20. Imagine that you have suddenly become entangled while diving, you should:
A. Try to turn around to see where you are tangled
B. Take off your scuba unit
C. Stop, think and slowly untangle yourself
D. Wait until you are rescued
Quick Answers:
ANSWERS:
Q1. B - Self Contained Underwater Breathing Apparatus
Q2. B - Never hold your breath
Q3. C - Ascend slowly until you are able to equalise
Q4. C - Neutrally buoyant
Q5. A - Float
Q6. D - Buoyancy Control Device
Q7. A - Submersible Pressure Gauge
Q8. B - 2 bar / ata
Q9. C - Regulator
Q10. B - Larger and closer
Q11. C - Attached in the triangular area from chin to the corners of your rib cage
Q12. B - Swimming into the current or against it
Q13. B - Nitrogen bubbles
Q14. A - 18 metres (60 ft)
Q15. A - At least once a year, more often if used often
Q16. A - Touch animals even if they look harmless
Q17. C - Four times faster
Q18. D - All of the above
Q19. C - The animal is protecting itself from you
Q20. C - Stop, think and slowly untangle yourself
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