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SDI CERTIFICATION EXAM 2024 |GUARANTEED PASS |100% CORRECT

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What does SCUBA stand for? - ACCURATE ANSWERS Self Contained Underwater Breathing Apparatus List the three important scuba diving changes that occurred in the 1950s - ACCURATE ANSWERS 1) Dive tables published for repetitive dives 2) Improved design/quality of scuba gear 3) Dive computers commercially available Name three different devices that modern dive computers replace - ACCURATE ANSWERS Depth gauge, dive tables, watch What sets SDI apart from other training agencies? - ACCURATE ANSWERS Students use a personal dive computer for all instruction and certification dives How much larger and closer do objects appear under water and why? - ACCURATE ANSWERS 33% larger, 25% closer Light bends in the air-space between the lens and your eyes. How much faster does sound move through water than air and why? - ACCURATE ANSWERS 4 times faster in water Water is 800x denser than air; sound travels through denser mediums at faster rates What is the first color absorbed underwater? - ACCURATE ANSWERS RED (followed by OYGBIV) When diving from shore, the best time to dive is when there is the least amount of tidal current. _____ tide is when there is no horizontal water movement. - ACCURATE ANSWERS Slack If you are caught in a rip current, first swim _____ to the current to get out of it before swimming towards shore. - ACCURATE ANSWERS Perpendicular Start your dive by swimming ____ the current - ACCURATE ANS

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SDI CERTIFICATION EXAM 2024 |
GUARANTEED PASS |100%
CORRECT

What does SCUBA stand for? - ACCURATE ANSWERS✔✔ Self
Contained
Underwater
Breathing
Apparatus


List the three important scuba diving changes that occurred in the 1950s
- ACCURATE ANSWERS✔✔ 1) Dive tables published for repetitive
dives
2) Improved design/quality of scuba gear
3) Dive computers commercially available


Name three different devices that modern dive computers replace -
ACCURATE ANSWERS✔✔ Depth gauge, dive tables, watch


What sets SDI apart from other training agencies? - ACCURATE
ANSWERS✔✔ Students use a personal dive computer for all instruction
and certification dives


How much larger and closer do objects appear under water and why? -
ACCURATE ANSWERS✔✔ 33% larger, 25% closer

, Light bends in the air-space between the lens and your eyes.


How much faster does sound move through water than air and why? -
ACCURATE ANSWERS✔✔ 4 times faster in water
Water is 800x denser than air; sound travels through denser mediums at
faster rates


What is the first color absorbed underwater? - ACCURATE
ANSWERS✔✔ RED (followed by OYGBIV)


When diving from shore, the best time to dive is when there is the least
amount of tidal current. _____ tide is when there is no horizontal water
movement. - ACCURATE ANSWERS✔✔ Slack


If you are caught in a rip current, first swim _____ to the current to get
out of it before swimming towards shore. - ACCURATE ANSWERS✔✔
Perpendicular


Start your dive by swimming ____ the current - ACCURATE
ANSWERS✔✔ into/against


Global currents are _____.
Local currents ____. - ACCURATE ANSWERS✔✔ Fixed
Fluctuate

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