NET-DIVER SCHOOL FINALCHECK
[Dive Equipment]
Q.1 What makes a good wetsuit?
Acheap to rent
Bcolorful
Ccustom-made to provide optimum thermal protection
Dstretches easily because it is thin
non-answer
Bcolorful
Ccustom-made to provide optimum thermal protection
Dstretches easily because it is thin
non-answer
Q.2 The 3-item snorkel set consists of [ ].
Awetsuit, fin, mask
Bwetsuit, BC, tank
Cmask, fin, glove
Dsnorkel, mask, fin
non-answer
Bwetsuit, BC, tank
Cmask, fin, glove
Dsnorkel, mask, fin
non-answer
Q.3 We use a BC for [ ].
Adrifting
Bwarmth retention
Cprotection of our upper body
Dbuoyancy control
non-answer
Bwarmth retention
Cprotection of our upper body
Dbuoyancy control
non-answer
Q.4 After using a tank, it is good to [ ].
Aleave remaining air
Brefill with water
Clet out all remaining air
Drefill with oxygen
non-answer
Brefill with water
Clet out all remaining air
Drefill with oxygen
non-answer
Q.5 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 sun
Dwash with fresh water, and dry in the shade
non-answer
Blet it dry
Cwash with fresh water, and dry in the sun
Dwash with fresh water, and dry in the shade
non-answer
Q.6 We use underwater lights [ ].
Aonly during the night
Bonly during the day
Conly when it’s raining
Dduring both day and night
non-answer
Bonly during the day
Conly when it’s raining
Dduring both day and night
non-answer
Q.7 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.
Alesser / choose a suitable diving suit
Blesser / adjust weighting
Cgreater / adjust weighting
Dgreater / choose a suitable diving suit
non-answer
Blesser / adjust weighting
Cgreater / adjust weighting
Dgreater / choose a suitable diving suit
non-answer
Q.8 This type of fin is easiest to use.
Aexpensive
Bhas propulsive power
Cdepends on your strength and how you fin kick
Dsturdy
non-answer
Bhas propulsive power
Cdepends on your strength and how you fin kick
Dsturdy
non-answer
Q.9 We use weights to [ ].
Ato remain at the ocean floor
Bcontrol our rate of ascent
Cstabilize our underwater position
Dto offset buoyancy
non-answer
Bcontrol our rate of ascent
Cstabilize our underwater position
Dto offset buoyancy
non-answer
Q.10 [ ] is the gas inside scuba tanks.
Aoxygen
Bnitrogen
Catmospheric air
Dartificial air produced underwater
non-answer
Bnitrogen
Catmospheric air
Dartificial air produced underwater
non-answer
Q.11 Be careful that the [ ] is tightened when washing your regulator.
Adust cap
Bpurge button
Chose protector
Dyoke screw
non-answer
Bpurge button
Chose protector
Dyoke screw
non-answer
Q.12 When you go to dive, you do not forget to being C-CARD and [ ] with you.
ATriggerfish
BLog Book
CEmergency foods
DRecompression Chamber
non-answer
BLog Book
CEmergency foods
DRecompression Chamber
non-answer
[Underwater Environment]
Q.13 To penetrate [ ] require special training.
Asandy and rocky areas
Bcaves and sunken wrecks
Cdrop-offs
Drocky areas and coral reefs
non-answer
Bcaves and sunken wrecks
Cdrop-offs
Drocky areas and coral reefs
non-answer
Q.14 Rip currents cause [ ], and so are very dangerous.
Asurge
Bbottom jolting
Cstrong current
Dundertow
non-answer
Bbottom jolting
Cstrong current
Dundertow
non-answer
Q.15 This is a shellfish, but one that possesses a strong, poisonous needle.
Aturban shell
Bmoray eel
Cabalone
Dcone shell
non-answer
Bmoray eel
Cabalone
Dcone shell
non-answer
Q.16 There is a period during ebb tide and high tide when the tidal current stops. This is [ ].
Astop tide
Btide pool
Chalf tide
Dslack tide
non-answer
Btide pool
Chalf tide
Dslack tide
non-answer
Q.17 Divers need to watch their footing in the [ ] that is close to shore.
Aland breeze zone
Bocean breeze zone
Csurf zone
Dsandy areas
non-answer
Bocean breeze zone
Csurf zone
Dsandy areas
non-answer
Q.18 A drop-off is [ ].
Awhat appears to be like a vertical wall
Ba protruding rock
Cthe beginning of the ocean bottom’s bedrock
Dbottomless, deep ocean
non-answer
Ba protruding rock
Cthe beginning of the ocean bottom’s bedrock
Dbottomless, deep ocean
non-answer
Q.19 We need to take care near this sea creature, which, possessing deadly poison in spines along its back, perfectly mimics its surroundings.
Awasp scorpionfish
Bstonefish/devilfish
Csea catfish
Djellyfish
non-answer
Bstonefish/devilfish
Csea catfish
Djellyfish
non-answer
Q.20 Thermoclines are caused [ ].
Aby poor clarity
Bwhen water temperature lowers
Cwhen waters of different temperature meet
Dwhen water temperature rises
non-answer
Bwhen water temperature lowers
Cwhen waters of different temperature meet
Dwhen water temperature rises
non-answer
Q.21 If you encounter a dangerous sea creature, it is best to [ ].
Aattack it with a knife
Bdo nothing to provoke its natural defensive response of attack
Cescape quickly
Dfeed it bait
non-answer
Bdo nothing to provoke its natural defensive response of attack
Cescape quickly
Dfeed it bait
non-answer
Q.22 These are attracted to light.
Atriggerfish
Bneedlefish/garfish
Cbarracuda
Dshark
non-answer
Bneedlefish/garfish
Cbarracuda
Dshark
non-answer
[Underwater Physiology]
Q.23 Underwater, things appear [ ].
Asmaller and closer
Bsmaller and farther
Cbigger and closer
Dbigger and farther
non-answer
Bsmaller and farther
Cbigger and closer
Dbigger and farther
non-answer
Q.24 If pressure doubles, gas volume becomes [ ].
A4 times greater
B2 times greater
C1/4
D1/2
non-answer
B2 times greater
C1/4
D1/2
non-answer
Q.25 At a depth of 10m, gas volume is [ ] on land.
Atwice that as
B1/3 of that
Cthe same as
D1/2 of that
non-answer
B1/3 of that
Cthe same as
D1/2 of that
non-answer
Q.26 If you hold your breath while ascending, you’re in danger of experiencing [ ].
Alung squeeze
Bblackout
Ca lung over-expansion injury
Ddizziness
non-answer
Bblackout
Ca lung over-expansion injury
Ddizziness
non-answer
Q.27 Atmospheric air consists of [ ]% oxygen, [ ]% nitrogen, and about 1% other gases.
A21 / 78
B41 / 58
C71 / 28
D51 / 48
non-answer
B41 / 58
C71 / 28
D51 / 48
non-answer
Q.28 When hearing underwater, the direction of sound is [ ].
Adifficult to know
Balways above
Calways below
Deasy to know
non-answer
Balways above
Calways below
Deasy to know
non-answer
Q.29 Underwater, as air density is [ ], breathing resistance [ ].
Ahigher / increases
Blower / decreases
Clower / increases
Dhigher / decreases
non-answer
Blower / decreases
Clower / increases
Dhigher / decreases
non-answer
Q.30 When you are neither sinking or ascending, you have achieved [ ].
Amiddle buoyancy
Bbalance
Cneutral buoyancy
Dmiddle layer buoyancy
non-answer
Bbalance
Cneutral buoyancy
Dmiddle layer buoyancy
non-answer
Q.31 When snorkeling, excess hyperventilation [ ].
Ais necessary
Bshould never be done
Cshould be your goal
Dis sometimes done
non-answer
Bshould never be done
Cshould be your goal
Dis sometimes done
non-answer
Q.32 You should [ ] once you notice you’re experiencing nitrogen narcosis.
Asafely ascend to a shallower depth
Bmake a decompression stop
Cstop any movement
Dtake a big, slow breath
non-answer
Bmake a decompression stop
Cstop any movement
Dtake a big, slow breath
non-answer
Q.33 It is a good idea to [ ] when diving.
Atake big, fast breaths
Btake small, fast breaths
Ctake big, slow breaths
Dtake small, slow breaths
non-answer
Btake small, fast breaths
Ctake big, slow breaths
Dtake small, slow breaths
non-answer
Q.34 Squeeze can occur when/due to [ ].
Amaking an ascent
Bpoor physical condition
Ccold water temperature
Dmaking a descent
non-answer
Bpoor physical condition
Ccold water temperature
Dmaking a descent
non-answer
Q.35 Reverse block can occur when/due to [ ].
Ahunger
Bwarm water temperature
Cmaking an ascent
Dmaking a descent
non-answer
Bwarm water temperature
Cmaking an ascent
Dmaking a descent
non-answer
Q.36 To prevent reverse block in your middle ear or sinus cavities, you should [ ].
Amaintain your health
Blimit your time diving at depth
Ccomplete a mask clear
Dlimit your diving time
non-answer
Blimit your time diving at depth
Ccomplete a mask clear
Dlimit your diving time
non-answer
[Plan and Rules]
Q.37 When repetitive diving, dives from the second onwards should be planned [ ].
Aequally as deep as the previous dive
Bgradually deeper
Cat a different depth
Dgradually shallower
non-answer
Bgradually deeper
Cat a different depth
Dgradually shallower
non-answer
Q.38 The hand signal on the right indicates [ ].
AMe/My
BI can’t hear
CI understand
DI’m having problems equalizing my ears
non-answer
BI can’t hear
CI understand
DI’m having problems equalizing my ears
non-answer
Q.39 The best dive plans [ ] decompression stops.
Aprohibit
Bshould have
Cavoid if at all possible
Dare also fine if they have
non-answer
Bshould have
Cavoid if at all possible
Dare also fine if they have
non-answer
Q.40 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 ]?
A64
B32
C51
D13
non-answer
B32
C51
D13
non-answer
Q.41 Never ascend any faster than [ ].
A15cm / minutes
B18m / minutes
C10km / minutes
D10m / minutes
non-answer
B18m / minutes
C10km / minutes
D10m / minutes
non-answer
Q.42 It is necessary to review hand signals before a dive with [ ].
Aall members in the group
Byour dive buddies
Csome individuals
Dyour dive leader
non-answer
Byour dive buddies
Csome individuals
Dyour dive leader
non-answer
Q.43 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.44 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?
AD
BG
CE
DF
non-answer
BG
CE
DF
non-answer
Q.45 For dive plans, the ideal remaining tank pressure after a dive is at least [ ].
A100 bar
B20 bar
C50 bar
D0 bar
non-answer
B20 bar
C50 bar
D0 bar
non-answer
Q.46 When it comes to diving, the most important thing to keep in mind is [ ].
Abeing adventurous
Bseeing marine life
Chaving the best gear
Dsafety
non-answer
Bseeing marine life
Chaving the best gear
Dsafety
non-answer
Q.47 This is very important for maintaining good health for diving.
Ahaving some drinks the night before
Bhaving a great suntan
Cbeing well-rested
Dbeing on a diet
non-answer
Bhaving a great suntan
Cbeing well-rested
Dbeing on a diet
non-answer
Q.48 The ideal surface interval time is [ ].
Aat least 10 minutes
Bat least 3 hours
Cshort
Dat least 1 hour
non-answer
Bat least 3 hours
Cshort
Dat least 1 hour
non-answer
Q.49 When you haven’t been diving for a long period of time, it’s good to [ ].
Abe well-rested
Btake a refresher course
Cdrink little alcohol
Dbuy a dive computer
non-answer
Btake a refresher course
Cdrink little alcohol
Dbuy a dive computer
non-answer
Q.50 The No-decompression dive limit for a depth of 18m is [ ] minutes.
A64
B50
C40
D30
non-answer
B50
C40
D30
non-answer
Q.51 You dived for 30 minutes at 18m.Which letter category are you in your dive table calculations?
AD
BE
CF
DG
non-answer
BE
CF
DG
non-answer
Q.52 If you become separated from your buddy or group while diving, you should [ ].
Abegin an underwater search
Bsafely ascend to the surface
Cact according to the plan you discussed and decided upon in your pre-dive planning
Dexit the water
non-answer
Bsafely ascend to the surface
Cact according to the plan you discussed and decided upon in your pre-dive planning
Dexit the water
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
B13
C64
D32
non-answer
B13
C64
D32
non-answer
Q.54 When ocean conditions, etc, change and present possible dangers, the dive plan [ ].
Ashould be submitted to the police
Bshould be adapted accordingly
Cshould be submitted to the Coast Guard
Dis fine as is
non-answer
Bshould be adapted accordingly
Cshould be submitted to the Coast Guard
Dis fine as is
non-answer
Q.55 The best dive plans [ ]safety stops.
Aprohibit
Bavoid if at all possible
Care also fine if they have
Dshould have
non-answer
Bavoid if at all possible
Care also fine if they have
Dshould have
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 If you panic, stop moving, [ ] a few times, and regain your composure.
Apray
Binflate your BC
Cclear your mask
Ddeeply breathe
non-answer
Binflate your BC
Cclear your mask
Ddeeply breathe
non-answer
Q.58 When you slowly open the tank valve, the pressure gauge [ ].
Ashould be turned downwards
Bshould be placed so you can see
Csinks underwater
Dshould be turned upwards
non-answer
Bshould be placed so you can see
Csinks underwater
Dshould be turned upwards
non-answer
Q.59 A tank that has been set up with BC and regulator should be [ ].
Aset floating in the ocean
Bplaced standing on an even surface
Cput on
Dplaced laying down
non-answer
Bplaced standing on an even surface
Cput on
Dplaced laying down
non-answer
Q.60 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
Bpressure gauge
Cweight belt
Dregulator
non-answer
Bpressure gauge
Cweight belt
Dregulator
non-answer
Q.61 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 exhaling / when inhaling
Bbefore diving / after diving
Cbefore eating / after eating
Dwhen inhaling / when exhaling
non-answer
Bbefore diving / after diving
Cbefore eating / after eating
Dwhen inhaling / when exhaling
non-answer
Q.62 When ascending, we slowly turn 360 degrees while [ ].
Aexhausting air from our BC
Bmaintaining the air in our BC
Cholding our breath
Dclearing our mask
non-answer
Bmaintaining the air in our BC
Cholding our breath
Dclearing our mask
non-answer
Q.63 If you get a leg cramp while diving, grasp your [ ] in order to stretch out your muscles.
Afin tip
Bheel
Cfinger
Dknees
non-answer
Bheel
Cfinger
Dknees
non-answer
Q.64 In general, when descending we [ ].
Aequalize our ears and perform a mask blow
Bperform a mask clear and equalize our ears
Cbreathe and equalize our ears
Dmake a decompression stop and perform a mask blow
non-answer
Bperform a mask clear and equalize our ears
Cbreathe and equalize our ears
Dmake a decompression stop and perform a mask blow
non-answer
Q.65 When performing a mask clear, you press on the [ ] of the mask’s frame and slowly blow air from your [ ].
Abottom / mouth
Btop / mouth
Cbottom / nose
Dtop / nose
non-answer
Btop / mouth
Cbottom / nose
Dtop / nose
non-answer
Q.66 If this changes, it is necessary to adjust your buoyancy.
Awater temperature
Bweather
Cdepth
Dwater clarity
non-answer
Bweather
Cdepth
Dwater clarity
non-answer
Q.67 When entering the water, we ensure our BC [ ].
Ahas sufficient air to provide buoyancy at the surface
Bhas had the air exhausted
Cis unfastened
Dhas weights in its pockets
non-answer
Bhas had the air exhausted
Cis unfastened
Dhas weights in its pockets
non-answer
Q.68 We can do this technique with our breath to complete both a regulator clear and a snorkel clear.
Aexhale
Bstop breathing
Cbreathe naturally
Dinhale
non-answer
Bstop breathing
Cbreathe naturally
Dinhale
non-answer
Q.69 Octopus breathing and buddy breathing are both techniques for receiving [ ].
Aair
Bhand signals
Ccourage
Dnitrogen
non-answer
Bhand signals
Ccourage
Dnitrogen
non-answer
Q.70 By dropping your [ ] and using the buoyancy of your dive suit, you can complete the free ascent method of ascending.
Amask
Bwill to live
Cfins
Dweight belt
non-answer
Bwill to live
Cfins
Dweight belt
non-answer