BSAC Sports Diver Theory Exam Actual
Exam 2026/2027 – 100% Verified
Questions with Answers–Graded A+
(MOST RECENT) Instant Download
1. When can a Sports Diver dive with an Ocean Diver or
another Sports Diver?
Answer: In conditions already encountered by the Ocean Diver
during their training and under the supervision of a Dive Manager.
2. What is the initial limited depth for a newly qualified
Sports Diver?
Answer: 20 metres.
3. What is the progressively extended depth limit for an
experienced Sports Diver?
Answer: 35 metres (up to 40 metres with further experience and
approval).
4. Is a neap tide small or large?
Answer: Small.
5. Is a spring tide small or large?
Answer: Large.
6. What causes a neap tide?
Answer: When the Moon is at a right angle to the Earth and the
Sun, so their gravitational pulls counteract each other.
,7. What causes a spring tide?
Answer: When the gravity of the Sun and Moon pull in the same
direction (during new and full moons).
8. Neap tides coincide with what lunar phase?
Answer: The quarter moons (first and last quarter).
9. Spring tides coincide with what lunar phases?
Answer: New moon and full moon.
10. What is the average tidal cycle duration in most places?
Answer: 12 hours and 25 minutes (approximately).
11. How many tide cycles occur in a day?
Answer: Two.
12. When in the tidal cycle is generally the best time to dive a
static site such as a wreck?
Answer: Slack water (when the current is at its weakest).
13. What is the ratio of chest compressions to rescue breaths
for adult Basic Life Support (BLS)?
Answer: 30:2.
14. What is the recommended depth for each chest
compression on an adult diver?
Answer: 5 to 6 centimetres.
15. What does the mnemonic AVPU stand for in casualty
assessment?
Answer: Alert, Voice, Pain, Unresponsive.
, 16. How long should you check for breathing before
determining that a casualty is not breathing?
Answer: 10 seconds.
17. Why can Basic Life Support (BLS) with chest compressions
only be performed after the casualty is recovered from the
water?
Answer: Because effective chest compressions cannot be
performed in the water.
18. What is the correct in-water life support sequence for an
unresponsive diver?
Answer: Make buoyant, shout for help, extend the airway, give 1
minute of rescue breaths, tow to shore (or give breaths while
waiting for a boat), then de-kit and land/recover.
19. What is the richest Nitrox mix that a Sports Diver (without
supplementary qualifications) is trained to use?
Answer: 36%.
20. What is the maximum operating depth (MOD) for Nitrox
36 if the maximum permitted partial pressure of oxygen
(PPO2) is 1.4 bar?
Answer: Approximately 29 metres. (Calculation: (1..36) - 1 =
2.89 bar = 28.9m).
21. What is the partial pressure of oxygen (PPO2) when
diving on Nitrox 37 at 21 metres?
Answer: 1.18 bar. (Calculation: (21/10 + 1) x 0.37 = 3.1 x 0.37 =
1.147, rounded to 1.18).
22. What does DSMB stand for?
Answer: Delayed Surface Marker Buoy.
Exam 2026/2027 – 100% Verified
Questions with Answers–Graded A+
(MOST RECENT) Instant Download
1. When can a Sports Diver dive with an Ocean Diver or
another Sports Diver?
Answer: In conditions already encountered by the Ocean Diver
during their training and under the supervision of a Dive Manager.
2. What is the initial limited depth for a newly qualified
Sports Diver?
Answer: 20 metres.
3. What is the progressively extended depth limit for an
experienced Sports Diver?
Answer: 35 metres (up to 40 metres with further experience and
approval).
4. Is a neap tide small or large?
Answer: Small.
5. Is a spring tide small or large?
Answer: Large.
6. What causes a neap tide?
Answer: When the Moon is at a right angle to the Earth and the
Sun, so their gravitational pulls counteract each other.
,7. What causes a spring tide?
Answer: When the gravity of the Sun and Moon pull in the same
direction (during new and full moons).
8. Neap tides coincide with what lunar phase?
Answer: The quarter moons (first and last quarter).
9. Spring tides coincide with what lunar phases?
Answer: New moon and full moon.
10. What is the average tidal cycle duration in most places?
Answer: 12 hours and 25 minutes (approximately).
11. How many tide cycles occur in a day?
Answer: Two.
12. When in the tidal cycle is generally the best time to dive a
static site such as a wreck?
Answer: Slack water (when the current is at its weakest).
13. What is the ratio of chest compressions to rescue breaths
for adult Basic Life Support (BLS)?
Answer: 30:2.
14. What is the recommended depth for each chest
compression on an adult diver?
Answer: 5 to 6 centimetres.
15. What does the mnemonic AVPU stand for in casualty
assessment?
Answer: Alert, Voice, Pain, Unresponsive.
, 16. How long should you check for breathing before
determining that a casualty is not breathing?
Answer: 10 seconds.
17. Why can Basic Life Support (BLS) with chest compressions
only be performed after the casualty is recovered from the
water?
Answer: Because effective chest compressions cannot be
performed in the water.
18. What is the correct in-water life support sequence for an
unresponsive diver?
Answer: Make buoyant, shout for help, extend the airway, give 1
minute of rescue breaths, tow to shore (or give breaths while
waiting for a boat), then de-kit and land/recover.
19. What is the richest Nitrox mix that a Sports Diver (without
supplementary qualifications) is trained to use?
Answer: 36%.
20. What is the maximum operating depth (MOD) for Nitrox
36 if the maximum permitted partial pressure of oxygen
(PPO2) is 1.4 bar?
Answer: Approximately 29 metres. (Calculation: (1..36) - 1 =
2.89 bar = 28.9m).
21. What is the partial pressure of oxygen (PPO2) when
diving on Nitrox 37 at 21 metres?
Answer: 1.18 bar. (Calculation: (21/10 + 1) x 0.37 = 3.1 x 0.37 =
1.147, rounded to 1.18).
22. What does DSMB stand for?
Answer: Delayed Surface Marker Buoy.
