SDI SCUBA ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2024 – 2025 ALREADY GRADED A+
During an independent emergency ascent, you should stop periodically and
attempt to inhale through your regulator because:
A. Doing so reduces the risk of decompression sickness
B. Doing so reduces the risk of lung overpressure injuries.
C. The decreasing pressure may allow your regulator to function, even if it could
not do so at depth.
D. The air in your cylinder will expand on ascent, allowing you to breathe. -
ANSWERS-C. The decreasing pressure may allow your regulator to function, even
if it could not do so at depth.
If your buoyancy is under control, you should be able to hover at any time by:
A. Adding just a single puff of air to your BC.
B. Inhaling deeply.
,C. Not kicking or moving.
D. Both the first and second answers are correct. - ANSWERS-C. Not kicking or
moving.
Among the key points in doing a flutter kick:
A. Keep your knees as straight as possible.
B. Emulate the leg movements you make when pedaling a bicycle.
C. Key your toes pointed.
D. Both the first and third answers are correct. - ANSWERS-D. Both the first and
third answers are correct.
Which of the following is not true?
A. Longshore currents always move in the same direction.
B. Wind, waves and tides are among the factors that can affect the direction of
longshore currents.
C. Longshore currents frequently move in the same direction as permanent
offshore currents.
D. Local dive operators are a good source of information on the behavior of
longshore currents. - ANSWERS-A. Longshore currents always move in the same
direction.
Which of the following is/are true?
A. If caught in a rip current, swim directly towards shore, using the most powerful
kick possible.
, B. If caught in a rip current, swim perpendicular to shore, until you are completely
out of the rip current, then swim in towards shore.
C. If caught in a rip current, swim parallel to shore, until you are completely out of
the rip current, then swim in towards shore.
D. Don't fight the rip current relax and let it carry you closer to shore. - ANSWERS-
C. If caught in a rip current, swim parallel to shore, until you are completely out of
the rip current, then swim in towards shore.
Objects under water appear:
A. The same size as they do on land.
B. Twice as large as they do on land.
C. Closer and larger than they do on land.
D. Smaller and farther away than they do on land. - ANSWERS-C. Closer and larger
than they do on land.
Which of the following is/are true?
A. Tides seldom have a significant impact on depth or dive plans.
B. Strong tidal currents frequently bring clearer water with them.
C. Tidal currents can be very strong, making diving difficult or even dangerous.
D. None of the above. - ANSWERS-C. Tidal currents can be very strong, making
diving difficult or even dangerous.
CORRECTLY WELL DEFINED ANSWERS
LATEST 2024 – 2025 ALREADY GRADED A+
During an independent emergency ascent, you should stop periodically and
attempt to inhale through your regulator because:
A. Doing so reduces the risk of decompression sickness
B. Doing so reduces the risk of lung overpressure injuries.
C. The decreasing pressure may allow your regulator to function, even if it could
not do so at depth.
D. The air in your cylinder will expand on ascent, allowing you to breathe. -
ANSWERS-C. The decreasing pressure may allow your regulator to function, even
if it could not do so at depth.
If your buoyancy is under control, you should be able to hover at any time by:
A. Adding just a single puff of air to your BC.
B. Inhaling deeply.
,C. Not kicking or moving.
D. Both the first and second answers are correct. - ANSWERS-C. Not kicking or
moving.
Among the key points in doing a flutter kick:
A. Keep your knees as straight as possible.
B. Emulate the leg movements you make when pedaling a bicycle.
C. Key your toes pointed.
D. Both the first and third answers are correct. - ANSWERS-D. Both the first and
third answers are correct.
Which of the following is not true?
A. Longshore currents always move in the same direction.
B. Wind, waves and tides are among the factors that can affect the direction of
longshore currents.
C. Longshore currents frequently move in the same direction as permanent
offshore currents.
D. Local dive operators are a good source of information on the behavior of
longshore currents. - ANSWERS-A. Longshore currents always move in the same
direction.
Which of the following is/are true?
A. If caught in a rip current, swim directly towards shore, using the most powerful
kick possible.
, B. If caught in a rip current, swim perpendicular to shore, until you are completely
out of the rip current, then swim in towards shore.
C. If caught in a rip current, swim parallel to shore, until you are completely out of
the rip current, then swim in towards shore.
D. Don't fight the rip current relax and let it carry you closer to shore. - ANSWERS-
C. If caught in a rip current, swim parallel to shore, until you are completely out of
the rip current, then swim in towards shore.
Objects under water appear:
A. The same size as they do on land.
B. Twice as large as they do on land.
C. Closer and larger than they do on land.
D. Smaller and farther away than they do on land. - ANSWERS-C. Closer and larger
than they do on land.
Which of the following is/are true?
A. Tides seldom have a significant impact on depth or dive plans.
B. Strong tidal currents frequently bring clearer water with them.
C. Tidal currents can be very strong, making diving difficult or even dangerous.
D. None of the above. - ANSWERS-C. Tidal currents can be very strong, making
diving difficult or even dangerous.
