UNDERWATER ENVIRONMENT
Objects Underwater Appear ?
CLOSER AND LARGER
Number One Rule of Scuba Diving ?
NEVER HOLD YOUR BREATH
Types of Fins Commonly Used ?
DNI Split Fin Users 😠😠😠ðŸ˜
FULL FOOT FINS
OPEN HEEL / ADJUSTABLE FINS
What do You and Your Buddy Need to Agree on Before a Dive ?
DEPTH AND TIME LIMITS
PLANNED ACTIVITY
PROCEDURE TO FOLLOW WHEN SEPARATED
TRUE OR FALSE
We Pose a Vastly Greater Threat to Underwater Plant and Animal Life Than They do to us.
TRUE
What Color is Absorbed by the Water First When Descending ?
RED
How Often Should You Equalize Your Ears ?
EARLY AND OFTEN
Common Exposure Suit Types Include ?
DIVE SKINS
WET SUITS
DRY SUITS
When Separated from Your Buddy Search No More Than _____ Then Accend to The Surface . .
ONE MINUTE
What Causes Most Marine Life Injuries ?
AN ANIMALS DEFENSIVE RESPONSE
MISTAKEN IDENTITY
How is Sound Effected Under the Water ?
How Many Times More Dense is Water Than Air ?
TRAVELS FOUR TIMES FASTER
800 TIMES DENSER
A Scuba Cylinder That Normally Lasts One Hour at the Surface Will Last ____ Minutes at 20 meters / 66 feet.
Basic Post-Dive Equipment Maintenance and Care Includes . . ?
RINSING THOROUGHLY WITH FRESH WATER
ALLOWING TO DRY COMPLETELY
STORE IN A COOL, DRY PLACE, AWAY FROM DIRECT SUNLIGHT
What Does SCUBA Stand For ?
S . . SELF
C . . CONTAINED
U . . UNDERWATER
B . . BREATHING
A . . APPARATUS
What Are The Stinging Cells That Aquatic Animals Possess Called ?
NEMATOCYSTS
Below What Temperature Does Your Body Require Some Form of Thermal Protection ?
26° CELSIUS
or
86° FAHRENHEIT
HEADACHE AND NAUSEA
PAIN IN THE JOINTS
LOSS OF FEELING
A Regulator System May Include ?
A FIRST STAGE AND PRIMARY SECOND STAGE
AN ALTERNATE AIR SOURCE SECOND STAGE ( OR CONNECTION TO AN ALTERNATE AIR SOURCE INFLATOR ON BCD )
A SUBMERSIBLE PRESSURE GAUGE ( SPG )
TRUE OR FALSE
Longshore Currents Always Move in The Same Direction as Prevailing Offshore Currents ?
FALSE
When Water Stratifies Itself Into Layers, According to Temperature, the Boundary Between Layers is Known as a ?
THERMOCLINE
The Chief Cause of Nitrogen Narcosis is ?
THE ELEVATED PARTIAL PRESSURE OF NITROGEN DIVERS EXPERIENCE AT DEPTH
The Minimum Information Most Dive Computers Provide You With While in Dive Mode Include . . ?
CURRENT AND MAXIMUM DIVE DEPTH
ACTUAL BOTTOM TIME
DECOMPRESSION STATUS