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Terms in this set (87)
I'M PLANNING A DIVE IN TRUE
MODERATELY LOW
VISIBILITY (2-3
METERS/2-10 FEET) AND I
WANT TO MAINTAIN
BUDDY CONTACT. SKILL
IN UNDERWATER
NAVIGATION WILL HELP ME
WITH THIS.
TRUE/FALSE
WHEN MEASURING THE SAME LEG RETURNS TO THE SAME POSITION
DISTANCE WITH KICK
CYCLES, YOU COUNT
WHEN...
AT A NORMAL RELAXED PACE.
WHEN ESTIMATING
DISTANCE WITH
ELAPSED TIME, YOU
MEASURE HOW LONG IT
TAKES TO COVER A FIXED
DISTANCE WHILE
SWIMMING...
,MY BUDDY AND I ARE 1. DIVEMASTER TELLS US THE BOAT IS POINTEDDIRECTLY INTO
DIVING FROM A BOAT THE CURRENT.
THAT'S MOORED IN AN 2. IT'S 1530 HOURS AND THE SUN IS SETTING IN THEWEST.
AREA POPULAR FOR 3. THERE'S A LARGE BUOY MOORED DIRECTLYBEHIND THE BOAT.
DIVING. WHICH OF THE 4. THE BOAT'S DEPTH FINDER SHOWS 15 METERS/50
FOLLOWING PREDIVE FEET DIRECTLY UNDER THE BOAT.
OBSERVATIONS MAY
ASSIST US WITH NATURAL
NAVIGATION DURING THE
DIVE?
TO MAINTAIN MY HEAD ABOVE FEET FACING TRAVEL DIRECTION
ORIENTATION AND
BENEFIT FROM NATURAL
NAVIGATION , DESCEND IN
WHAT POSITION?
WHILE NAVIGATING 1. LIGHT AND SHADOWS
WITH NATURAL 2. WATER MOVEMENT
REFERENCES, WHICH OF 3. BOTTOM COMPOSITION AND FORMATIONS
THE FOLLOWING CAN HELP 4.PLANTS AND ANIMALS
ME? 5. NOISE/SOUNDS
I'M NAVIGATING WITH A LUBBER LINE
COMPASS. TO MAINTAIN
AN ACCURATE HEADING,
KEEP THE ____________
ALIGNED WITH MY
BODY'S CENTERLINE.
LUBBER LINE, COMPASS NEEDLE
WITH A STANDARD
ANALOG COMPASS, THE
__________ ALWAYS
INDICATES YOUR TRAVEL
DIRECTION. THE _________
ALWAYS POINTS TO
MAGNETIC NORTH.
, TO SET A RECIPROCAL 180 DEGREES
HEADING, TURN THE
COMPASS TO A
HEADING THAT IS
__________
FROM THE ORIGINAL
HEADING?
DURING A DIVE, I'M TRUST THE COMPASS
FOLLOWING MY
COMPASS BUT MY SENSE
OF DIRECTION MAKES IT
FEEL LIKE I SHOULD BE
GOING MORE TO THE
RIGHT. WITHOUT ANY
OTHER INFORMATION, THE
BEST TIP WOULD BE
TO....
WHICH OF THE 1. PRACTICE ON LAND
FOLLOWING USUALLY 2. ALLOW FOR CURRENT EFFECTS
MAKE COMPASS USE MORE 3. NAVIGATE AROUND OBSTACLES
EFFECTIVE? 4. MIDWATER, YOUR BUDDY MONITORS DEPTH
WHILE YOU NAVIGATE
5. DO NOT SWIM RAPIDLY
WHICH OF THE 1. ENVIRONMENTAL CONDITIONS
FOLLOWING FACTORS 2. MY PHYSICAL/PSYCHOLOGICAL FITNESS
WOULD I CONSIDER 3. THE EFFECT OF PREVIOUS DIVES ON MY NO
WHEN DETERMINING MY STOP LIMIT
PERSONAL DEEP-DIVING 4. DISTANCE FROM EMERGENCY CARE
DEPTH LIMIT? 5. MY BUDDY'S PERSONAL LIMITS