SDI Scuba Certification Exam Study Guide |
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Terms in this set (81)
Define SCUBA S - self
C - contained
U - underwater
B - breathing
A - apparatus
List 3 important scuba diving 1) published USN dive tables
changes that occurred in 1950s 2) invented the personal dive computer
3) equipment manufacturers made improvements
to the design and workmanship of gear
Name 3 different devices that 1) dive tables
modern dive computers replace 2) J-valves
3) depth gauges
What sets SDI apart from other First dive training agency to provide entry level
training agencies? scuba instruction that incorporates the use of
personal dive computers --> more streamlined
scuba course w/ more instruction time in the
water
, How much larger and closer do Objects underwater appear 25% larger and 25%
objects appear underwater and closer
why?
As light travels through the airspace created by
the mask, it bends, creating a magnifying effect.
How much faster does sound move 4 times faster because water is about 800 times
through water than air and why? denser than air.
What is the first color to be Red (within first 25 feet)
absorbed underwater?
When diving from shore, the best Slack tide
time to dive is when there is the
least amount of tidal current. _______
tide is when there is no horizontal
water movement.
If you are caught in a rip current, Parallel
first swim _____ to the current to get
out of it before swimming towards
shore.
Waves are usually caused by Wind pushing water on the surface
T or F: Anticipate surge action to True
avoid contact with stationary
objects
What type of marine life cause most Most diving injuries result from animal's defensive
diving injuries? response to a perceived threat
Actual Questions with Verified
Answers Grade A+ Guarantee
Save
Terms in this set (81)
Define SCUBA S - self
C - contained
U - underwater
B - breathing
A - apparatus
List 3 important scuba diving 1) published USN dive tables
changes that occurred in 1950s 2) invented the personal dive computer
3) equipment manufacturers made improvements
to the design and workmanship of gear
Name 3 different devices that 1) dive tables
modern dive computers replace 2) J-valves
3) depth gauges
What sets SDI apart from other First dive training agency to provide entry level
training agencies? scuba instruction that incorporates the use of
personal dive computers --> more streamlined
scuba course w/ more instruction time in the
water
, How much larger and closer do Objects underwater appear 25% larger and 25%
objects appear underwater and closer
why?
As light travels through the airspace created by
the mask, it bends, creating a magnifying effect.
How much faster does sound move 4 times faster because water is about 800 times
through water than air and why? denser than air.
What is the first color to be Red (within first 25 feet)
absorbed underwater?
When diving from shore, the best Slack tide
time to dive is when there is the
least amount of tidal current. _______
tide is when there is no horizontal
water movement.
If you are caught in a rip current, Parallel
first swim _____ to the current to get
out of it before swimming towards
shore.
Waves are usually caused by Wind pushing water on the surface
T or F: Anticipate surge action to True
avoid contact with stationary
objects
What type of marine life cause most Most diving injuries result from animal's defensive
diving injuries? response to a perceived threat
