NET-DIVER SCHOOL FINALCHECK
[Dive Equipment]
Q.1 The 3-item snorkel set consists of [ ].
Asnorkel, mask, fin
Bmask, fin, glove
Cwetsuit, BC, tank
Dwetsuit, fin, mask
non-answer
Bmask, fin, glove
Cwetsuit, BC, tank
Dwetsuit, fin, mask
non-answer
Q.2 After using a tank, it is good to [ ].
Arefill with oxygen
Blet out all remaining air
Crefill with water
Dleave remaining air
non-answer
Blet out all remaining air
Crefill with water
Dleave remaining air
non-answer
Q.3 We use a BC for [ ].
Awarmth retention
Bdrifting
Cprotection of our upper body
Dbuoyancy control
non-answer
Bdrifting
Cprotection of our upper body
Dbuoyancy control
non-answer
Q.4 What makes a good wetsuit?
Acheap to rent
Bcustom-made to provide optimum thermal protection
Cstretches easily because it is thin
Dcolorful
non-answer
Bcustom-made to provide optimum thermal protection
Cstretches easily because it is thin
Dcolorful
non-answer
Q.5 When you go to dive, you do not forget to being C-CARD and [ ] with you.
ATriggerfish
BRecompression Chamber
CLog Book
DEmergency foods
non-answer
BRecompression Chamber
CLog Book
DEmergency foods
non-answer
Q.6 [ ] is the gas inside scuba tanks.
Aatmospheric air
Bnitrogen
Coxygen
Dartificial air produced underwater
non-answer
Bnitrogen
Coxygen
Dartificial air produced underwater
non-answer
Q.7 When you’ve finished your dive, it is good for your equipment to [ ].
Awash with salt water, and let dry
Blet it dry
Cwash with fresh water, and dry in the shade
Dwash with fresh water, and dry in the sun
non-answer
Blet it dry
Cwash with fresh water, and dry in the shade
Dwash with fresh water, and dry in the sun
non-answer
Q.8 Because the buoyancy of an aluminum tank underwater is [ ] than a steel tank, it’s important to [ ] and always be aware of the type of tanks used.
Agreater / adjust weighting
Blesser / adjust weighting
Clesser / choose a suitable diving suit
Dgreater / choose a suitable diving suit
non-answer
Blesser / adjust weighting
Clesser / choose a suitable diving suit
Dgreater / choose a suitable diving suit
non-answer
Q.9 We use underwater lights [ ].
Aonly when it’s raining
Bduring both day and night
Conly during the day
Donly during the night
non-answer
Bduring both day and night
Conly during the day
Donly during the night
non-answer
Q.10 This type of fin is easiest to use.
Ahas propulsive power
Bdepends on your strength and how you fin kick
Cexpensive
Dsturdy
non-answer
Bdepends on your strength and how you fin kick
Cexpensive
Dsturdy
non-answer
Q.11 Be careful that the [ ] is tightened when washing your regulator.
Apurge button
Byoke screw
Chose protector
Ddust cap
non-answer
Byoke screw
Chose protector
Ddust cap
non-answer
Q.12 We use weights to [ ].
Acontrol our rate of ascent
Bto offset buoyancy
Cstabilize our underwater position
Dto remain at the ocean floor
non-answer
Bto offset buoyancy
Cstabilize our underwater position
Dto remain at the ocean floor
non-answer
[Underwater Environment]
Q.13 A drop-off is [ ].
Athe beginning of the ocean bottom’s bedrock
Ba protruding rock
Cbottomless, deep ocean
Dwhat appears to be like a vertical wall
non-answer
Ba protruding rock
Cbottomless, deep ocean
Dwhat appears to be like a vertical wall
non-answer
Q.14 These are attracted to light.
Abarracuda
Bneedlefish/garfish
Ctriggerfish
Dshark
non-answer
Bneedlefish/garfish
Ctriggerfish
Dshark
non-answer
Q.15 Rip currents cause [ ], and so are very dangerous.
Asurge
Bundertow
Cbottom jolting
Dstrong current
non-answer
Bundertow
Cbottom jolting
Dstrong current
non-answer
Q.16 Thermoclines are caused [ ].
Awhen water temperature rises
Bby poor clarity
Cwhen water temperature lowers
Dwhen waters of different temperature meet
non-answer
Bby poor clarity
Cwhen water temperature lowers
Dwhen waters of different temperature meet
non-answer
Q.17 To penetrate [ ] require special training.
Arocky areas and coral reefs
Bdrop-offs
Ccaves and sunken wrecks
Dsandy and rocky areas
non-answer
Bdrop-offs
Ccaves and sunken wrecks
Dsandy and rocky areas
non-answer
Q.18 There is a period during ebb tide and high tide when the tidal current stops. This is [ ].
Ahalf tide
Btide pool
Cstop tide
Dslack tide
non-answer
Btide pool
Cstop tide
Dslack tide
non-answer
Q.19 Divers need to watch their footing in the [ ] that is close to shore.
Aocean breeze zone
Bland breeze zone
Csandy areas
Dsurf zone
non-answer
Bland breeze zone
Csandy areas
Dsurf zone
non-answer
Q.20 This is a shellfish, but one that possesses a strong, poisonous needle.
Acone shell
Bmoray eel
Cturban shell
Dabalone
non-answer
Bmoray eel
Cturban shell
Dabalone
non-answer
Q.21 If you encounter a dangerous sea creature, it is best to [ ].
Afeed it bait
Battack it with a knife
Cdo nothing to provoke its natural defensive response of attack
Descape quickly
non-answer
Battack it with a knife
Cdo nothing to provoke its natural defensive response of attack
Descape quickly
non-answer
Q.22 We need to take care near this sea creature, which, possessing deadly poison in spines along its back, perfectly mimics its surroundings.
Astonefish/devilfish
Bsea catfish
Cwasp scorpionfish
Djellyfish
non-answer
Bsea catfish
Cwasp scorpionfish
Djellyfish
non-answer
[Underwater Physiology]
Q.23 Underwater, things appear [ ].
Abigger and closer
Bbigger and farther
Csmaller and farther
Dsmaller and closer
non-answer
Bbigger and farther
Csmaller and farther
Dsmaller and closer
non-answer
Q.24 When hearing underwater, the direction of sound is [ ].
Adifficult to know
Balways above
Ceasy to know
Dalways below
non-answer
Balways above
Ceasy to know
Dalways below
non-answer
Q.25 Squeeze can occur when/due to [ ].
Apoor physical condition
Bmaking an ascent
Ccold water temperature
Dmaking a descent
non-answer
Bmaking an ascent
Ccold water temperature
Dmaking a descent
non-answer
Q.26 If you hold your breath while ascending, you’re in danger of experiencing [ ].
Adizziness
Ba lung over-expansion injury
Cblackout
Dlung squeeze
non-answer
Ba lung over-expansion injury
Cblackout
Dlung squeeze
non-answer
Q.27 Atmospheric air consists of [ ]% oxygen, [ ]% nitrogen, and about 1% other gases.
A41 / 58
B51 / 48
C71 / 28
D21 / 78
non-answer
B51 / 48
C71 / 28
D21 / 78
non-answer
Q.28 Reverse block can occur when/due to [ ].
Amaking a descent
Bhunger
Cmaking an ascent
Dwarm water temperature
non-answer
Bhunger
Cmaking an ascent
Dwarm water temperature
non-answer
Q.29 When you are neither sinking or ascending, you have achieved [ ].
Amiddle layer buoyancy
Bbalance
Cmiddle buoyancy
Dneutral buoyancy
non-answer
Bbalance
Cmiddle buoyancy
Dneutral buoyancy
non-answer
Q.30 Underwater, as air density is [ ], breathing resistance [ ].
Ahigher / increases
Blower / increases
Clower / decreases
Dhigher / decreases
non-answer
Blower / increases
Clower / decreases
Dhigher / decreases
non-answer
Q.31 To prevent reverse block in your middle ear or sinus cavities, you should [ ].
Alimit your time diving at depth
Blimit your diving time
Ccomplete a mask clear
Dmaintain your health
non-answer
Blimit your diving time
Ccomplete a mask clear
Dmaintain your health
non-answer
Q.32 You should [ ] once you notice you’re experiencing nitrogen narcosis.
Atake a big, slow breath
Bstop any movement
Cmake a decompression stop
Dsafely ascend to a shallower depth
non-answer
Bstop any movement
Cmake a decompression stop
Dsafely ascend to a shallower depth
non-answer
Q.33 When snorkeling, excess hyperventilation [ ].
Ais necessary
Bshould never be done
Cis sometimes done
Dshould be your goal
non-answer
Bshould never be done
Cis sometimes done
Dshould be your goal
non-answer
Q.34 If pressure doubles, gas volume becomes [ ].
A1/4
B2 times greater
C1/2
D4 times greater
non-answer
B2 times greater
C1/2
D4 times greater
non-answer
Q.35 It is a good idea to [ ] when diving.
Atake big, slow breaths
Btake big, fast breaths
Ctake small, fast breaths
Dtake small, slow breaths
non-answer
Btake big, fast breaths
Ctake small, fast breaths
Dtake small, slow breaths
non-answer
Q.36 At a depth of 10m, gas volume is [ ] on land.
A1/3 of that
Btwice that as
C1/2 of that
Dthe same as
non-answer
Btwice that as
C1/2 of that
Dthe same as
non-answer
[Plan and Rules]
Q.37 When it comes to diving, the most important thing to keep in mind is [ ].
Ahaving the best gear
Bseeing marine life
Csafety
Dbeing adventurous
non-answer
Bseeing marine life
Csafety
Dbeing adventurous
non-answer
Q.38 The ideal surface interval time is [ ].
Aat least 3 hours
Bat least 1 hour
Cat least 10 minutes
Dshort
non-answer
Bat least 1 hour
Cat least 10 minutes
Dshort
non-answer
Q.39 The hand signal on the right indicates [ ].
AI can’t hear
BI’m having problems equalizing my ears
CMe/My
DI understand
non-answer
BI’m having problems equalizing my ears
CMe/My
DI understand
non-answer
Q.40 The No-decompression dive limit for a depth of 18m is [ ] minutes.
A50
B64
C40
D30
non-answer
B64
C40
D30
non-answer
Q.41 The best dive plans [ ] decompression stops.
Aavoid if at all possible
Bshould have
Care also fine if they have
Dprohibit
non-answer
Bshould have
Care also fine if they have
Dprohibit
non-answer
Q.42 When repetitive diving, dives from the second onwards should be planned [ ].
Agradually deeper
Bequally as deep as the previous dive
Cat a different depth
Dgradually shallower
non-answer
Bequally as deep as the previous dive
Cat a different depth
Dgradually shallower
non-answer
Q.43 It is necessary to review hand signals before a dive with [ ].
Ayour dive leader
Bsome individuals
Call members in the group
Dyour dive buddies
non-answer
Bsome individuals
Call members in the group
Dyour dive buddies
non-answer
Q.44 The best dive plans [ ]safety stops.
Aprohibit
Bshould have
Care also fine if they have
Davoid if at all possible
non-answer
Bshould have
Care also fine if they have
Davoid if at all possible
non-answer
Q.45 If a diver who was category “E” has had a 1-hour, 30-minutes Surface Interval, and dives again, this time to depth of 15m, what is the new no-decompression dive time [ minutes ]?
A13
B51
C32
D64
non-answer
B51
C32
D64
non-answer
Q.46 This is very important for maintaining good health for diving.
Ahaving some drinks the night before
Bbeing well-rested
Chaving a great suntan
Dbeing on a diet
non-answer
Bbeing well-rested
Chaving a great suntan
Dbeing on a diet
non-answer
Q.47 If you become separated from your buddy or group while diving, you should [ ].
Abegin an underwater search
Bact according to the plan you discussed and decided upon in your pre-dive planning
Csafely ascend to the surface
Dexit the water
non-answer
Bact according to the plan you discussed and decided upon in your pre-dive planning
Csafely ascend to the surface
Dexit the water
non-answer
Q.48 The hand signal on the right indicates [ ].
ADescend
BAscend
CThat’s really big
DOk!
non-answer
BAscend
CThat’s really big
DOk!
non-answer
Q.49 When you haven’t been diving for a long period of time, it’s good to [ ].
Atake a refresher course
Bbe well-rested
Cbuy a dive computer
Ddrink little alcohol
non-answer
Bbe well-rested
Cbuy a dive computer
Ddrink little alcohol
non-answer
Q.50 When ocean conditions, etc, change and present possible dangers, the dive plan [ ].
Ashould be submitted to the Coast Guard
Bshould be adapted accordingly
Cshould be submitted to the police
Dis fine as is
non-answer
Bshould be adapted accordingly
Cshould be submitted to the police
Dis fine as is
non-answer
Q.51 You dived for 30 minutes at 18m.Which letter category are you in your dive table calculations?
AE
BG
CD
DF
non-answer
BG
CD
DF
non-answer
Q.52 For dive plans, the ideal remaining tank pressure after a dive is at least [ ].
A0 bar
B100 bar
C20 bar
D50 bar
non-answer
B100 bar
C20 bar
D50 bar
non-answer
Q.53 If a diver who was category “E” has had a 1-hour, 30-minutes Surface Interval, and dives again, this time to depth of 15m, what is the Residual Nitrogen Time [ minutes ].
A51
B64
C13
D32
non-answer
B64
C13
D32
non-answer
Q.54 If a diver who was category “E” has had a 1-hour, 30-minutes Surface Interval, and dives again, this time for 35 minutes to depth of 15m, which letter category are you in your dive table calculations?
AF
BD
CG
DE
non-answer
BD
CG
DE
non-answer
Q.55 Never ascend any faster than [ ].
A10m / minutes
B18m / minutes
C10km / minutes
D15cm / minutes
non-answer
B18m / minutes
C10km / minutes
D15cm / minutes
non-answer
[Diving Skills]
Q.56 Be careful of [ ] getting into your mask when fitting it.
Aair
Bhair
Cnose
Deyebrows
non-answer
Bhair
Cnose
Deyebrows
non-answer
Q.57 When setting up our equipment, after tightening the tank belt we hold the [ ] and shake it back and forth to test how tight the hold is.
ABC
Bregulator
Cpressure gauge
Dweight belt
non-answer
Bregulator
Cpressure gauge
Dweight belt
non-answer
Q.58 When ascending, we slowly turn 360 degrees while [ ].
Amaintaining the air in our BC
Bholding our breath
Cclearing our mask
Dexhausting air from our BC
non-answer
Bholding our breath
Cclearing our mask
Dexhausting air from our BC
non-answer
Q.59 In general, when descending we [ ].
Aperform a mask clear and equalize our ears
Bbreathe and equalize our ears
Cequalize our ears and perform a mask blow
Dmake a decompression stop and perform a mask blow
non-answer
Bbreathe and equalize our ears
Cequalize our ears and perform a mask blow
Dmake a decompression stop and perform a mask blow
non-answer
Q.60 When entering the water, we ensure our BC [ ].
Ahas had the air exhausted
Bhas weights in its pockets
Cis unfastened
Dhas sufficient air to provide buoyancy at the surface
non-answer
Bhas weights in its pockets
Cis unfastened
Dhas sufficient air to provide buoyancy at the surface
non-answer
Q.61 When you slowly open the tank valve, the pressure gauge [ ].
Ashould be placed so you can see
Bsinks underwater
Cshould be turned upwards
Dshould be turned downwards
non-answer
Bsinks underwater
Cshould be turned upwards
Dshould be turned downwards
non-answer
Q.62 By dropping your [ ] and using the buoyancy of your dive suit, you can complete the free ascent method of ascending.
Awill to live
Bweight belt
Cfins
Dmask
non-answer
Bweight belt
Cfins
Dmask
non-answer
Q.63 When performing a mask clear, you press on the [ ] of the mask’s frame and slowly blow air from your [ ].
Abottom / mouth
Bbottom / nose
Ctop / nose
Dtop / mouth
non-answer
Bbottom / nose
Ctop / nose
Dtop / mouth
non-answer
Q.64 If you panic, stop moving, [ ] a few times, and regain your composure.
Ainflate your BC
Bpray
Cdeeply breathe
Dclear your mask
non-answer
Bpray
Cdeeply breathe
Dclear your mask
non-answer
Q.65 We can do this technique with our breath to complete both a regulator clear and a snorkel clear.
Aexhale
Bbreathe naturally
Cinhale
Dstop breathing
non-answer
Bbreathe naturally
Cinhale
Dstop breathing
non-answer
Q.66 If this changes, it is necessary to adjust your buoyancy.
Adepth
Bwater temperature
Cweather
Dwater clarity
non-answer
Bwater temperature
Cweather
Dwater clarity
non-answer
Q.67 If you get a leg cramp while diving, grasp your [ ] in order to stretch out your muscles.
Afin tip
Bfinger
Cknees
Dheel
non-answer
Bfinger
Cknees
Dheel
non-answer
Q.68 With ideal weighting, you should be where your eyes are parallel to the water’s surface [ ] and sink to the top of your head [ ]. Avoid dangerous overweighting.
Awhen inhaling / when exhaling
Bwhen exhaling / when inhaling
Cbefore diving / after diving
Dbefore eating / after eating
non-answer
Bwhen exhaling / when inhaling
Cbefore diving / after diving
Dbefore eating / after eating
non-answer
Q.69 Octopus breathing and buddy breathing are both techniques for receiving [ ].
Acourage
Bhand signals
Cair
Dnitrogen
non-answer
Bhand signals
Cair
Dnitrogen
non-answer
Q.70 A tank that has been set up with BC and regulator should be [ ].
Aplaced laying down
Bplaced standing on an even surface
Cset floating in the ocean
Dput on
non-answer
Bplaced standing on an even surface
Cset floating in the ocean
Dput on
non-answer