RBT Scuba Flashcards
RDP
recreational dive planner
recreational divers do not make _____.
decompression dives
the RDP is for _____
no decompression diving
4 precautions/dangers with depth
less margin for error
bottom time is shorter
the surface is further away
more susceptible to nitrogen narcosis
3 recommended limits for recreational divers
60’ for novices
100’ for all recreational divers
130’ for recreational divers w/special
training
if you dive < 130’ than no _____ is necessary
safety stop
if u dive over 130’ than it is automatically
a ______.
decompression dive
SAFE diver
Slowly Ascend From Every dive
safe ascension rate is _____.
1’/1sec
safety stops are at _____ and are for _____
in duration. they provide an _____ of safety.
15’
3 minutes
extra margin
14 basic scuba skills
1)assemble/disassemble equipment
2)predive safety check
3)know hand signals
4)deep water entry
5)weight removal/replacement at surface
6)exchange snorkel for regulator with
face in the water
7)remove/replace/clear mask
8)proper descent
9)establish neutral buoyancy mid water
and at bottom
10)locate buddy’s alternate air source
and breathe for 30 seconds
11)buddy breath with partner
12)breathe from free-flowing regulator
13)controlled emergency ascent from 30’
14)proper ascent
8 steps to setting up SCUBA equipment
1)tank upright with valve on right side
2)BCD facing away from you
3)insert tank into to wet tank strap/secure
4)hold regulator with 2nd stage on right
5)check o-ring on tank
6)attach 1st stage to tank
7)attach low-pressure hose from regulator
to low-pressure inflator hose on BCD
8)slowly open tank valve fully/quarter turn
back.
5 step predive safety check
1) buoyancy
2) weights
3) releases
4) regulators/air
5) friend
buoyancy safety check includes 3 things
inflator hose functions properly
BCD holds air without leaking
BCD’s exhaust valves vent air smoothly
weights safety check includes 3 things
proper amount of weight
weight belt is donned or weights loaded
can belt and weights be easily ditched
releases safety check includes 3 things
is the tank release secure?
are all releases secured/adjusted properly
can u operate your buddy’s releases?
air/regulators safety check include 3 things
air tank open and full
regulators allow ease of breathing
alternate air sources are in plain sight
friend safety check includes 3 things
hand signal familiarity
mentally and physically ready?
reviewed dive plan/objective/goal?
predive safety check acronym
bwraf
bwraf
begin with review and friend
try to surface within _____ of dive flag/buoy
50’
equalize when
every few feet
4 basic steps to assisting diver
provide ample buoyancy
calm diver
re-establish breathing control
assist back to boat/shore
if separated from your buddy, u then _____
search for not more than 1 minute and
then surface if you have not found each
other.
max. limit for recreational diving
130’
no-decompression diving means that ____
u are staying within the limits of dive tables
and that you may ascend directly to
surface at any time.
“repetitive” dive
any dive done within 6hr of another dive
purpose of safety stop
to eliminate excess nitrogen
NDL is the _____
maximum allowable dive time for a
specific depth.
NDL
no-decompression limit
SI or _____ is the ____.
surface interval
time spent out of water between dives
bottom time is the total time from ____ to
____
beginning your descent
the beginning of your ascent
pressure groups indicate the ____
amount of residual nitrogen left in your
body after a dive.
danger signal
arm extended closed fist pointing to
danger
out of air signal
move hand back and forth across throat
low air signal
closed fist tap chest
up signal
thumb up, move hand up and down
down signal
thumb down, move hand up and down
something is wrong signal
rotate hand
buddy breathe signal
one hand on 2nd stage
other hand on alternate air source
watch me signal
point to your chest
level off at this depth signal
hand out palm down, move back and forth
ears not clearing signal
point to ear
take it easy/slow down signal
hand out/palm down move up and down
hold hands signal
grasp your hands
get with your buddy signal
align 2 index fingers together
u lead i’ll follow signal
point with both hands, one behind the
other
5 step proper descent
signal orient yourself switch snorkel for regulator check the time descend
5 step proper ascent acronym
STALK
5 step proper ascent
signal time (check your bottom time) air/arm (grab inflator hose and raise arm) look (up and around for obstacles) kick (slow SAFE ascent)
