Final Exam for Basic Scuba Cal School of Diving
CDTextZ
Cal School of Diving CDTestV09_12_09
NOTE!! ~ At the bottom of this test are numbers 1-90 stacked vertically.
Look now! You can copy these 1=90 vertically on a "reply to" email to me,
JL@CalDive.net. Put your "letter" answers next to the numbers and
Cntrl C the information to your "reply" page - or email a txt file.
Any vertically 1-90 sheet with answers will work.
I can then correct it and return a copy to you to examine any
questions you may have gotton wrong. 3 wrong is amazing, but 20 wrong
can happen even if you study hard and listen well.
It is a hard, tricky test, designed to cover all the relative information
you need as a SCUBA Diver.
Example:
1 d
2 a
3 b etc through to - 90
Note: Dive table problems, between 72 and 90 are marked optional. Read
them for your own knowledge or try to solve them!
Note 2: This is a new BETA test - there may be some errors - you can
deal with it! Good Luck -Jim
** Remember this is an exam about SCUBA and water -- not about grammar**
1. Which of the following will not assist performance underwater
a. proper fit of fins
b. streamlined shape and stability
c. rapid jerky movement while bending at the knees
d. relaxed movement, with legs relatively straight
2 A mask used for Scuba diving must cover the nose because
a. this provides better peripheral vision
b. water in the nose is distracting
c. air pressure in the mask can be equalized with water
pressure outside
d. the volume can be kept lower
3 Buoyancy control devices, BCDs, can be used for
a. assisting in surface swims and resting at the surface
b. adjusting buoyancy while underwater
c. providing buoyancy while assisting in rescues
d. all of the above
4 If it becomes necessary to drop your weight belt in an emergency
situation
a. you should never drop your weight belt, it is too expensive
b. give it to your buddy
c. release and pull the weight belt away from your body before
dropping it
d. release and fin as quickly as possible to the surface
5 For a normal ascent
a. signal your partner, start your ascent, and let your
expanding BCD carry you to the surface
b. inflate your BCD on the way to the surface
c. inflate your BCD, signal your partner and kick at 90 feet
per minute
d. signal your partner, locate your exhaust valve, fin towards
the surface while controlling the volume of air in your vest
6 A scuba diver with a 7mm wetsuit will use_____weight in sea
water than fresh water
a. less
b. the same
c more
d.14.7 pounds more
7 The greatest percentage change of pressure occurs between
a. Zero percent change because pressure is constant
b. 33 and 66 feet
c. 0 and 33 feet
d. 132 and 165 feet
8 An object weighing 64 pounds is placed in sea water. The
object will
a. sink
b. float
c remain at the depth it is placed
d sink or float depending on the object's volume
9 The buoyancy of a diver in a wet suit
a is constant regardless of depth
b becomes more negative as a diver descends
c becomes more positive as a diver descends
d is compensated for by the weight belt regardless of depth
10 Refraction of light rays through a mask makes an underwater
object appear
a larger and farther away
b larger and closer
c no change is apparent
d smaller and closer
11 The term "equalization" means ?
a matching the pressure in the air spaces of your body to
the surrounding water pressure
b adding weight to achieve neutral buoyancy
c selecting a buddy with similar physical conditioning and
diving abilities
d matching air in the buoyancy compensator with the amount
of weight you carry
12 A diver should begin equalizing
a as soon as she starts descending
b when discomfort in the ears is felt
c after buoyancy is established
d immediately upon descending unless your buddy is
descending faster than you
13 A pressure of 4 atmospheres occurs at _____ in seawater?
a 33 feet plus 14.7 PSI for the surface
b 99 feet
c 132 feet
d it depends on the capacity of the buoyancy compensator
14 When diving without a wet suit , descending will produce
_______in buoyancy ?
a an increase if you are diving in salt water
b a decrease if you are diving in salt water
c little change, since the human body is mostly water
and can?t compress further
d it depends upon the amount of weight on the diver
15 Prior to donning his steel tank, a SCUBA diver checking his
buoyancy should float
a or sink depending on whether he is in salt or fresh water
b at eye level
c if the weight belt is less than 15% of the divers weight
d should not float, should quickly sink
16 To achieve neutral buoyancy underwater a diver should
a add one breath to the BCD for each 15 feet the diver
descends
b add air to the BCD until you rise when inhaling and sink
when exhaling
c add two breaths to the BCD for each 15 feet the diver
descends
d vent air from the BCD while holding your breath
17 After signaling your buddy to descend, you should
a let the air out of your BCD and wait for your buddy on the
bottom
b maintain visual contact and head-first surface dive quickly
to get out of the waves
c wait for a return signal and descend slowly while visually
looking at your buddy
d if your buddy has problems clearing her ears, wait on the
bottom for her
18 A diver should never wear earplugs while submerged because
a you cannot hear sounds underwater
b the diver cannot equalize his ears properly and may
suffer injury
c ears can get infected easily in a closed environment
d sound travels much too quickly underwater to equalize
19 The most efficient way of clearing a snorkel while free
diving and ascending is to
a remove the snorkel from the mouth and drain it
b exhale forcefully 2 or 3 times after surfacing
c while surfacing, look up and exhale while breaking
the surface (displacement method)
d scuba divers do not need snorkels
20 While descending, ascending, or resting on the bottom
and vertigo occurs: (pg. 61-64)
a swim to the surface and rest; then you may resume
diving
b assume a head down position for proper orientation
c grasp a stationary object or your buddy, if
possible, and wait until vertigo subsides
d ascend or descend until your ears equalize
21 The most frequently used method of equalizing pressure in
the ears is
a the use of special medication
b a rapid but controlled descent
c swallow air during descent
d holding the nose while attempting to exhale through the nose
22 The effect of a mask sucking tightly against the face is
called
a a hangover
b a sinus squeeze
c a mask squeeze
d an incorrectly fitted mask
23 Important engraved markings that should be checked before
using a scuba cylinder
a service pressure, hydrostatic test
b hydrostatic date, visual inspection sticker
c hydrostatic date, Dept. of Transportation code
d serial number, visual inspection sticker
24 The amount of reserve air recommended is
a depends on the skill level of the diver
b enough to make a safe ascent and safety stop
c 3000 psi
d 500 psi
25 Scuba cylinders should be stored with some pressure in them
to prevent
a moisture from entering
b the Din valve springs from degenerating
c valve springs from tiring
d O-Ring leakage
26 Scuba tanks must be hydrostaticly tested every
a 5 months
b time they are visually inspected
c 5 years
d year
27 A small bolt assembly (burst disk) on the tank valve is activated by
a tank expansion
b pressure
c the J-Valve
d the regulator
28 The inside of an air cylinder should be inspected at least
every
a time the tank is hydrostaticly tested
b 6 months if diving in salt water
c 1 year with average use
d 5 years unless stored
29 When rinsing your scuba regulator after diving you should not
a rinse your equipment
b depress the purge button on the second stage while rinsing your
regulator
c replace the dust/water cap
d soak gear to remove salt build up
30 When diving from a boat that is anchored, it is suggested that
a diver
a starts the dive with the current to save energy for the
return swim to the boat
b keeps the anchor line in sight at all times
c starts the dive against the current
d uses ½ of his air swimming away from the boat and ½ of
his air returning to the boat
31 If a BCD containing 2 breaths of air at a depth of 66 feet
is allowed to rise to the surface the air in the BCD
will expand to
a 4 breaths
b 2 breaths, but the pressure will drop
c 22 breaths
d 6 breaths
32 Which is not an acceptable practice for storing scuba cylinders
a store in a cool dry area
b block or strap into position
c release all the pressure in the cylinder
d store with a few hundred pounds of pressure
33 Which allows a diver to most effectively monitor tank
pressure while diving
a surface air consumption charts
b submersible pressure gauge
c spring loaded valve
d valve pressure gauge
34 Dive computers are very safe when
a both buddies are using them
b doing dives below 130 feet
c starting your dive shallow and ending deep
d you don't understand gas absorbtion into the human body
at increasing depths
35 A diver in the water should never wave to anyone
a because shouting is more effective
b because it is difficult to see a waved arm from a distance
c because waving is a distress signal
d except other divers
36 When the regulator is correctly assembled on the tank
a the regulator first stage hose passes over the right shoulder
b the regulator second stage hose passes over the right shoulder
c the regulator second stage should free flow slightly for
easier breathing
d the regulator second stage hose passes under the right shoulder
37 A standard weight belt should
a be easily accessible with a right hand release
b have a left hand QUICK release
c be upgraded to an integrated weight system because they are safer
d be double looped so as not to lose the belt
38 When manually inflating a buoyancy compensator underwater
a one should exhale completely to keep water from entering
b one should handle both the regulator and the BCD with
the right hand so as to always have one hand free
c one should handle the BCD INFLATE VALVE with the left hand and the
regulator with the right
d the purge button should never be used when manually inflating
39 Which of the following does not use the low pressure portion of
the first stage
a alternative air source (octopus)
b buoyancy compensator inflator hose
c submersible pressure gauge
d second stage
40 Identify the second stage parts (pg. 22-24)
a burst disk, mouthpiece, yoke screw
b exhaust diaphragm, mouthpiece, purge button
c dust cover, purge button, yoke screw
d O-Ring, burst disk, reserve valve
41 If there is a reason to take the regulator out of your mouth
while under water
a keep your mouth and nose tightly closed to avoid
swallowing water
b do this only while ascending
c pinch your nose while holding your breath
d always maintain an open airway by exhaling slightly
42 When diving in a new location the most important data to
obtain would be
a beach access rules
b state scuba regulations
c licensing requirements
d an orientation or briefing of the dive site
43 Upon arrival at a familiar diving site the dive team should first
a the dive profile
b suit up
c evaluate conditions / plan
d inspect the scuba gear
44 Of the following, the least consequential portion of an equipment
check is
a air on
b BCD inflated
c weight belt easily removed if necessary
d all of these checks are important
45 If conditions are unfavorable at your selected dive site,
a try an alternate dive site
b dive if your buddy insists
c dive only if your partner is an experienced diver
d it is okay to enter if you are diving from a boat
46 Select the diving instrument of least value to a scuba diver
a timing device
b depth gauge or computer
c temperature gauge
d pressure gauge
47 You should annually service your equipment
a except dive computers which usually need only battery replacements
do not need servicing
b yearly to avoid equipment problems and maintain warranties
c except equipment that hasn?t been used in 1 year
d scuba cylinders only need service every 5 years
48 For compass navigation, which is not recommended
a keep the compass level
b keep the compass aligned with the center of your body
c site along your compass and swim to an object before taking
another heading
d constantly look down at the compass for reference
49 The most important rule in scuba diving is never
a hold your breath while using compressed air
b dive without a buoyancy compensator
c dive below 100 feet
d write bad checks to Cal Dive and Travel!!
50 Which of the following statements about health for divers is true
a women have a special physiological consideration for diving
b alcohol is a health hazard for divers especially drinking
before diving and directly after diving
c drugs used for equalization are not recommended before diving
d all of the above
51 Ascents are performed in what order
a locate buddy, signal go up, start up, find deflation device,
(deflator), stop at 15 feet
b signal buddy, find deflator, ascend to 15 foot stop,
surface and inflate BC
c signal desire to ascend, stay with buddy, go to surface
and inflate BC
d start ascent neutral, finish ascent buoyant, but not
ascend to fast
52 The proper rate of ascent for scuba divers in the ocean is
a 60 feet per minute
b 100 feet per minute
c 60, 45, and 30 feet per minute depending on starting depth
though many texts recommend 30 fpm
d depends on your bottom time
53 Immediately after making a giant stride entry into the water,
you should
a get clear of the entry area and give an OK signal
b inflate your buoyancy compensator
c descend and wait for your buddy on the anchor
d remove your snorkel, put your regulator in your mouth,
and descend with your buddy
54 After checking your pressure gauge which indicated a full tank,
you descend. While making a normal descent it becomes
harder and harder to breathe air. What is the problem?
a An O-Ring has burst and let out all your air
b your tank valve was not opened all the way
c you have a low pressure leak
d the burst disk has blown
55 Rapid movement of the needle of your pressure gauge when you
inhale usually means
a you are low on air
b your regulator filter is dirty or your air is not open fully
c you have a faulty auto-inflator or Air-2 hose
d there is a low pressure gauge leak
56 If you become separated from your buddy while underwater, you
should
a remain where you are until your buddy locates you
b immediately surface, locate buddy's bubbles, and follow
them down to your buddy
c search for your buddy until air pressure reaches 500 psi,
then surface
d search for maximum of 1 minute then surface and wait
for your buddy on the surface
57 Which is true about vertigo (spatial disorientation)
a it occurs as often on ascents as descents
b it ALWAYS happens when an eardrum ruptures
c it should resolve itself in a short time
d all the above
58 If you are caught in a current, which of the following actions
is appropriate
a signal, establish buoyancy, and signal for help
b try to swim along the bottom against the current aiding
yourself by pulling yourself along with your hands
c try to swim perpendicular to the current to get out of it
d depending on the situation any of the above can be a
solution
59 A scuba diver in a serious panic will most likely
a have his/her mask gone and will not have a regulator in
his/her mouth
b listen to his/her buddy and take accept advice
c drop his/her weight belt
d stop, think, and work out the problem
60 The least desirable action to take in the event of entanglement
while in the water is to
a obtain buddy's assistance
b cut yourself out of the entanglement with a knife
c remove the regulator from your mouth and quickly turn
around to locate the problem
d stop, think, and work slowly
61 If you feel the effects of nitrogen narcosis, you should
a ascend and begin taking oxygen
b start buddy breathing immediately
c ascend to a shallower depth with your partner
d descend to the bottom to relieve pressure effects
62 A common symptom of decompression sickness is
a overexcited activity
b pain in the joints
c shivering uncontrollably
d all of the above
63 First aid will probably not be required for which of the following
a an air expansion injury
b contaminated air poisoning
c nitrogen narcosis
d decompressions sickness
64 When going to the aid of a panicked diver on the surface, the
rescuer should
a make the victim buoyant when possible
b avoid being grabbed by the victim
c keep the victim in sight while approaching
d all of the above
65 A diver can most easily avoid lung over pressure accidents by
a always making a stop at 15 feet for 3 minutes
b buddy breathing when out of air
c don?t breathe compressed gases
d never holding one's breath
66 When swimming over kelp, a scuba diver should
a push the kelp underneath you or swim around it if possible
b secure second stage and any alternates to avoid getting
caught
c avoid spinning in circles
d all of the above
67 A good practice while exiting through very rough surf, one should
a remove fins outside wave zone and walk in
b swim then crawl as far as possible with your partner, with
regulator in mouth and mask in place until reaching dry sand
c walk out backwards toward the beach to see incoming waves
d swim on your back to observe incoming waves, ducking
under waves when possible
68 Upon finding an unconscious diver you should first
a remove the victims tank
b establish buoyancy for victim
c consider ignoring the situation to avoid litigation should
the victim die
d establish buoyancy for yourself
69 While diving at 20 feet you suffer total air loss. Your best
option is to
a breathe from an alternate air source
b buddy breathe with partner
c make an emergency buoyant ascent
d make an emergency swimming ascent
70 While entering the water from a beach
a always put on your fins before entering the water
b it is easier to rinse your mask while walking
backwards in the surf zone
c watch your buddy and the waves
d if your partner falls, continue out past breaking
waves and wait
71 Which of the following is a disadvantage of shallow water
diving in Calif.
a dives last longer
b the water is generally warmer
c there is generally more surge
d there is generally more life to see
72 -OPTIONAL Sport divers can use the dive tables
a as a convenient place to assemble or check their scuba gear
b to determine safe diving limits
c for dives deeper than 130 feet
d to compute dives requiring mandatory depth stops below
the surface
73 Maximum depth limits for sport divers is/are
a limited to the more skilled buddy's ability
b determined by nitrogen narcosis
c 130 feet or limited to the less skilled buddy's ability
d 100 feet for advanced divers
74 Pressure of air at sea level is (pg. 47)
a 14.7 psi
b 33 psi
c 0 atmospheres
d 1 psi
75 Dive computers are used to keep ____ inside the diver within safe
limits
a pressure levels
b nitrogen levels
c air
d oxygen levels
76 - OPTIONAL Residual nitrogen time is
a The amount of time it takes residual nitrogen to leave
the body
b The amount of nitrogen in your system after the dive
computed for the depth of the next dive
c The minimum amount of time at the surface required to
make a dive
d The amount of nitrogen remaining after a dive is made
77 If an air supply lasts 15 minutes at 66 feet, it will last
_______ minutes at 33 feet
a 15 minutes
b 22 1/2 minutes
c 45 minutes
d 1 hour
78 Below a depth of 20 feet a diver must observe time and depth
limits with a dive computer because
a excess carbon dioxide will saturate the tissues and
you can tire easily
b carbon dioxide has a tendency to build up with depth
and time
c too much nitrogen could build up in the body tissues
d oxygen excess will occur
79 -OPTIONAL For diving at varying depths, calculating the proper
repetitive group designator requires the diver to use
a the average depth
b the deepest depth of the dive
c the time used to deplete the air in the tanks
d the amount of air in tank
80 Dive computers are preferred over repetitive dive tables because
a On multi-level dives, you get more accurate readings
of your nitrogen levels
b They constantly show your remaining safe bottom time
c They usually have ascent rate indicators
d All of the above
81 -OPTIONAL After a buddy team dives to 52 feet for 48 minutes their
group designation is?
a E
b G
c H
d I
82 After a few days of 2 dives a day in warm water starting with a
wall dive usually 70-90 feet then followed by 50-60 foot
flat contour bottom dive, you feel tingly on your left
side. You should
a Go to a decompression chamber
b Get advice from local dive instuctors or medical personnel
versed in air expansion injurys and AGE (arterial gas embolism)
and decompression sickness
c Review your computer to see if you violated you nitrogen
absortion limits
d Go to a doctor or hospital
83 - OPTIONAL We dive to 67 feet for 38 minutes, surfaces for 2 hours
and 12 minutes. We wish to dive to 50 feet on the next dive. We should
stay no longer than?
a 38 minutes
b 42 minutes
c 63 minutes
d 81 minutes
84 JIM's dive buddy forgets to watch his computer, and the word DECO
appears and a BLINKING time indication of 5 minutes. This
means
a He has NO more than 5 minutes left to get to 15 feet
b IMMEDIATELY ascend to 15 feet for at least 8 minutes and
pray a lot
c He can convert to Susan?s computer as long as he has not
been shallower than her
d He has blown it big time and there is no need to ascend
(Luke 21 verse 11)
85 -OPTIONAL Your watch has stopped and upon checking with your buddy,
discover you have been at 97 feet for an unknown period of
time. What should you do?
a a safety stop at 15 feet for 3 minutes
b a safety stop at 15 feet for a way long time
c ascend slowly to let the nitrogen stabilize
d ascend directly to the surface and tell the Divemaster
86 -OPTIONALRussell Larson?s team profile is 80 ft. for 31 min.,
surfaces for 2 hours, then dives to 62 ft. for 16 min.
To do another dive to 60 ft for 22 min., the minimum
time they must wait is?
a 2 hours and 3 minutes
b 3 hours and 4 minutes
c 3 hours and 5 minutes
d 2 hours and 44 minutes
87 Joe and Jim dive until their computers read a flashing DECO and
the time remaining box reads 8 minutes and then goes blank,
turns back on as if the dive is just starting. What should
they do
a Stay at 15 feet till the pixels are in the green zone
b Go to 15 feet for 8 minutes and then surface
c Go to 15 feet till you can surface safely
d Get a new sport where you don?t have to think so much
88 -OPTIONAL a a diver works hard for 10 minutes to free a anchor
at a depth of 73 feet in 48 degree extremely cold water.
The dive table plan schedule should be _____to be safe
a 80 feet for 10 minutes
b 73 feet for 10 minutes
c 90 feet for 10 minutes
d 80 feet for 15 minutes
89 If your dive computer crashes (blank screen) you should
a ascend, make 3 min safety stop, exit the water and get advice
b immediately ascend to the surface
c continue your dive but watch your depth and time
d use your buddy?s computer as long as you have not been above
him during the dive
90 -OPTIONAL If a dive team accidentally goes deeper than their
planned depth limit using dive tables. They should
a surface and immediately begin taking oxygen
b go up to 10 feet shallower and continue the dive
c ascend to 15 feet and wait a minimum of 5 minutes unless
you have pre-planned an alternative time for the deeper depth
d give up SCUBA diving and take up bungie jumping
Don't change too many of your answers. (It rarely helps)
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