Quiz 1-B
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Quiz 1-B Overview
Quiz 1 – B Question

1
An object is neutrally buoyant when it:
A. sinks only in sea water.
B. floats only in fresh water.
C. neither sinks
nor floats.
D. None of the above.
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Quiz 1-B Question 1
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Quiz 1 – B Question

2
An object that does not sink or float in fresh
water will probably ______ in salt water.
A. float
B. sink
C. not sink or float
D. I can not tell from the question.
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Quiz 1-B Question 2
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Quiz 1 – B Question

3
Imagine a diver is 20 metres/66 feet
underwater. The water pressure at this
depth would be ___ times more than the
pressure at the surface.
A. one
B. two
C. three
D. four
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Quiz 1-B Question 3
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Quiz 1 – B Question

4
Imagine you hold a glass upside down at the bottom of
a swimming pool; you fill it with air from your scuba
tank and you then take it to the surface without tipping
it. As you ascend (go up), the air in the glass will
_________.
A. contract (air molecules will
move closer together).
B. expand (air molecules
will move further apart).
C. not change.
D. There is not enough
information to answer
the question.
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Quiz 1-B Question 4
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Quiz 1 – B Question

5
What can happen if you do not follow the
most important rule in scuba diving?
A. You could run out of air without warning.
B. You may have an ear squeeze.
C. Your lungs can over expand which could
cause injury or death.
D. You may have a reverse block.
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Quiz 1-B Question 5
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Quiz 1 – B Question

6
What should you do if you have soreness or pain in one
or both ears while you are descending (going down)?
A. Stop descending (going down).
B. Ascend (go up) until
the soreness or pain
goes away, equalize and
continue a slow descent
(going down) equalizing
more often.
C. If you cannot equalize,
do not continue the dive.
D. All of the above.
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Quiz 1-B Question 6
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Quiz 1 – B Question

7
Imagine you put air into a balloon at 10 metres/33
feet and then you take it to the surface. The air in
the balloon will:
A. stay the same as it was at
10 metres/33 feet.
B. expand to twice the size
as it was at 10 metres/33 feet.
C. expand to four times the size
as it was at 10 metres/33 feet.
D. expand to eight times the
size as it was at 10 metres/33 feet.
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Quiz 1-B Question 7
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Quiz 1 – B Question

8
You want to look after all of your scuba
equipment. One way to prevent the inside
of your tank from wearing away is to:
A. never let the tank empty completely.
B. rinse the tank after diving.
C. use a tank with a special paint finish.
D. have the tank hydrostatically tested
(pressure tested) every three years.
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Quiz 1-B Question 8
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Quiz 1 – B Question

9
When rinsing a regulator second stage, do
not:
A. have it serviced by a qualified technician.
B. press the purge button if it is not
attached to a tank with the air
turned on.
C. rinse it in warm water after every use.
D. store it in a cool, dry place when you
are not using it.
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Quiz 1-B Question 9
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Quiz 1 – B Question

10
What is the main reason you cannot use
swimmer’s goggles for scuba diving?
A. Goggles cause double vision at depth.
B. You cannot adjust goggles.
C. Goggles fog up too easily.
D. You cannot equalize goggles.
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Quiz 2 – B
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Quiz 2 – B Question

1
When you look at objects through water
and through a mask, they seem:
A. smaller.
B. larger.
C. longer and thinner.
D. rounder.
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Quiz 2 – B Question

2
__________ travels fast underwater and
you may have difficulty telling where it
came from.
A. Sound
B. Light
C. Current
D. Heat
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Quiz 2-B Question 2
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Quiz 2 – B Question

3
If you get cold while scuba diving and you cannot
stop shivering, what should you do?
A. Try to warm up by swimming harder.
B. Try to save your body
heat by not moving your
arms and legs.
C. Stop diving right
away, get out of
the water, and
change into
something warm.
D. Try to save your body heat by moving slowly.
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Quiz 2 – B Question

4
You can move best underwater by:
A. having the right amount of weight.
B. clipping hoses and
gauges out of the way
so you are streamlined.
C. moving slowly
and steadily.
D. All of the above.
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Quiz 2 – B Question

5
Wet suits keep you warm as long as the
water is trapped between your skin and the
suit. To cut down on the water moving in
and out of your wet suit:
A. tape the wrists and cuffs.
B. choose a suit with zippers.
C. stay out of currents.
D. wear a suit that fits properly.
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Quiz 2-B Question 5
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Quiz 2 – B Question

6
Proper airway control allows you to:
A. breathe past small amounts of water
that may be in the snorkel or regulator.
B. hold your breath longer and dive deeper.
C. make big changes in your buoyancy without
your BCD.
D. All of the above.
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Quiz 2-B Question 6
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Quiz 2 – B Question

7
The most important feature of a weight
system is:
A. the strength of the webbing.
B. you can remove
the weight easily with
only one hand in
an emergency.
C. the size and shape
of the weights.
D. that it is easy to make it fit.
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Quiz 2-B Question 7
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Quiz 2 – B Question

8
To signal distress (you need help) at the
surface:
A. take your mask off so you can see better.
B. place one hand or both hands on your
head.
C. make a slashing motion across the throat.
D. wave one or both arms.
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Quiz 2-B Question 8
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Quiz 2 – B Question

9
When you practice the buddy system you and
your buddy will:
A. decide on how you will stay together.
B. plan all dives together.
C. make predive safety checks.
D. All of the above.
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Quiz 2-B Question 9
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Quiz 2 – B Question

10
Your alternate air source should be:
A. hanging loose by your side.
B. put into your pocket.
C. easy to find by
attaching it in the
triangle area formed
by your chin and the
corners of your
rib cage.
D. a different color from
your main regulator.
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Quiz 3 - B
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Question 1
Question 6
Question 2
Question 7
Question 3
Question 8
Question 4
Question 9
Question 5
Question 10
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Quiz 3 – B Question

1
For the most part, how far you can see
underwater is determined by sunlight and
___________.
A. water temperature
B. suspended particles (floating silt) in the
water
C. salt in the water
D. how close you are to the coastline
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Quiz 3-B Question 1
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Quiz 3 – B Question

2
Without a reference line, compass or depth
gauge you are most likely to become
disorientated (confused) on your dive:
A. at the bottom.
B. at the surface.
C. in midwater.
D. any time you dive from a boat.
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Quiz 3 – B Question

3
Imagine you are diving from a boat and you are
caught in a strong current at the surface and
cannot get back to the boat. You should:
A. fight the current and swim across it.
B. roll on your back so you can kick harder against the
current.
C. descend (go down)
to the bottom.
D. make yourself
float on the surface
and signal for help.
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Quiz 3-B Question 3
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Quiz 3 – B Question

4
You are more likely to be injured by an aquatic
animal if you:
A. wear gloves and a wet suit.
B. touch animals, even if they look harmless.
C. stay off the bottom.
D. watch where you put your hands and feet.
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Quiz 3-B Question 4
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Quiz 3 – B Question

5
Dive environments can be very different. It
is recommended anytime you dive in a new
or unfamiliar location that you:
A. dive with an instructor.
B. dive in a three person buddy team.
C. get an area orientation.
D. dive from a boat.
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Quiz 3-B Question 5
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Quiz 3 – B Question

6
Imagine you are helping a diver who is struggling
at the surface. Which of the following suggestions
would calm the diver down?
A. Help the diver establish
ample buoyancy.
B. Talk to the diver and
offer support.
C. Help the diver to reestablish
breathing control.
D. All the above.
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Quiz 3-B Question 6
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Quiz 3 – B Question

7
A nonbreathing diver at the surface
requires immediate:
A. rescue breaths.
B. emergency oxygen.
C. recompression.
D. treatment for shock.
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Quiz 3-B Question 7
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Quiz 3 – B Question

8
If you have a problem at the surface you
should:
A. make yourself float right away.
B. breathe through your snorkel.
C. grab hold of your buddy.
D. make sure your weights are in place.
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Quiz 3-B Question 8
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Quiz 3 – B Question

5th
1st
6th
2nd
4th
3rd
9
Imagine you are very low on air and about to run out. What
would you do?
- buoyant emergency ascent (dropping your weight system)
- normal ascent (going up normally)
- in the future you would look at your gauges more often so
this would not happen
- alternate air source ascent (using your buddy’s alternate air
source)
- buddy breathing ascent (sharing a single source of air with
your buddy)
- controlled emergency swimming ascent (CESA – swimming up
to the surface saying ah-h-h-h)
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Quiz 3-B Question 9
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Quiz 3 – B Question

10
If available, give ______ to a diver who is
unable to listen to or answer your
questions.
A. air
B. nitrogen
C. oxygen
D. carbon dioxide
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Quiz 3-B Question 10
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Quiz 4 - B
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Question 1
Question 6
Question 2
Question 7
Question 3
Question 8
Question 4
Question 9
Question 5
Question 10
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Quiz 4 – B Question

1
Unless there are laws that say differently,
how close should you stay to your dive
flag?
A. 15 metres/50 feet
B. 30 metres/100 feet
C. 60 metres/200 feet
D. 90 metres/300 feet
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Quiz 4-B Question 1
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Quiz 4 – B Question

2
To prevent contaminated air (bad air)
problems, have your tanks:
A. visually inspected.
B. hydrostatically (pressure) tested.
C. filled with pure oxygen.
D. filled only by a dive center you trust.
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Quiz 4-B Question 2
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Quiz 4 – B Question

3
Divers who act foolishly at depth may start
acting normal again if they:
A. breathe slowly
and deeply.
B. ascend (go up) to
a shallower depth.
C. are given pure oxygen.
D. All of the above.
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Quiz 4-B Question 3
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Quiz 4 – B Question

4
Bubbles blocking blood circulation (blood
flow) in your body after a dive is caused by:
A. too much dissolved nitrogen gas.
B. the intoxicating (acting foolish) feelings of
nitrogen under pressure.
C. breathing always while ascending (going up).
D. contaminated air (bad air).
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Quiz 4-B Question 4
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Quiz 4 – B Question

5
Common signs and symptoms of
decompression sickness (bubbles blocking
blood circulation/flow in the body after a
dive) include:
A. acting foolishly.
B. headache and red lips or nail beds.
C. chest pain and coughing of blood.
D. pain, weakness and inability to move
arms and/or legs
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Quiz 4-B Question 5
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Quiz 4 – B Question

6
When using the Recreational Dive Planner
dive tables, you should not ascend (go up)
any faster than:
A. 30 metres/100 feet
per minute.
B. 1 metre/3 feet
per second.
C. 18 metres/60 feet
per minute.
D. 3 metres/10 feet per minute.
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Quiz 4-B Question 6
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Quiz 4 – B Question

7
As a beginning novice diver, it is
recommended that you dive no deeper
than:
A. 40 metres/130 feet
B. 30 metres/100 feet
C. 18 metres/60 feet
D. 10 metres/30 feet
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Quiz 4-B Question 7
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Quiz 4 – B Question

8
Imagine you dive to a depth of 11
metres/38 feet for 39 minutes. What would
your pressure group (PG) be on your
Recreational Dive Planner?
A. H
B. I
C. K
D. L
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Quiz 4-B Question 8
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Prescriptive
Table
Prescriptive
Wheel
Quiz 4 – B Question

9
Imagine you have done a dive and you have stayed
on the surface for a while. After this surface
interval your pressure group on the Recreational
Dive Planner is F. What is the maximum amount of
bottom time you can spend doing a repetitive
(second) dive to 17 metres/59 feet?
A. 19 minutes
B. 24 minutes
C. 30 minutes
D. 36 minutes
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Table
Prescriptive
Wheel
Quiz 4 – B Question

10
After a surface interval your pressure group on
your Recreational Dive Planner is K. You want to
do a repetitive (second) dive to 17 metres/56 feet
for 19 minutes. What will be your new pressure
group (PG) when you reach the surface?
A. T
B. N
C. F
D. V
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Quiz 4-B Question 10
Prescriptive
Table
Prescriptive
Wheel
Quiz 1 – B




Question 1
Displacement of water more than own weight –
object will float (positively buoyant)
Displacement of water less than own weight –
object will sink (negatively buoyant)
Displacement of water equal to own weight –
object will neither float nor sink (neutrally buoyant)
If an object neither sinks nor floats it is
neutrally buoyant
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Question
Quiz 1-B Question 1 - PLG
Quiz 1 – B


Question 2
Buoyancy - the weight of water volume displaced
The heavier the water - the greater the buoyancy for
a given displacement

Salt water weighs more than fresh water

You’re more buoyant in salt water than in fresh

An object neutrally buoyant
in fresh water will float if put
into salt water
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Quiz 1-B Question 2 - PLG
Quiz 1 – B



Question 4
Air added to an air space to maintain volume
expands when you reduce the pressure
In an open container, such as a glass, excess air
simply bubbles out into the surrounding water as you
ascend
Air added to a glass expands when you reduce the
pressure
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Quiz 1-B Question 4 - PLG
Quiz 1 – B




Question 7
In an open container - excess air bubbles out into the
surrounding water during ascent
In a closed flexible container - the air is trapped and
expands as you ascend
10 metres/33 feet is 2 atmospheres
If you inflate a balloon at 10 metres/33 feet
and take it to the surface, it will expand to
twice the size as it was at 10 metres/33 feet
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Quiz 1-B Question 7 - PLG
Quiz 1 – B
Question 9

Rinse your regulator with warm running water

When rinsing your regulator:

Put the first stage dust cover firmly in place

Do not use high-pressure water to rinse

Don’t press the purge button while rinsing
or soaking - this opens the second stage inlet
valve and can allow water to flow up the hose
into the first stage
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Quiz 1-B Question 9 - PLG
Quiz 2 – B




Question 5
Wet suits reduce heat loss - a layer of insulating
foam neoprene over your skin
Your body quickly heats the water – as long
as water remains trapped in your suit you
stay warm
If water circulates in and out of your suit –
you lose a lot of heat to incoming cold water
Wet suits need to have a proper snug fit
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Question
Quiz 2-B Question 5 - PLG
Quiz 2 – B

Question 9
To practice a buddy system:

Agree on entry, exit point and dive objective

Agree upon time and depth limits

Establish and review communications

Discuss how to stay together –
what to do if separated

Discuss emergency procedures

Make predive safety checks
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Quiz 2-B Question 9 - PLG
Quiz 3 – B



Question 2
In limited visibility - it’s more difficult to stay with
your buddy and keep track of where you are
Diving in extremely clear water - the bottom may
appear closer than it really is
If you can’t use the surface
or the bottom for reference
you may become disoriented
in midwater
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Question
Quiz 3-B Question 2 - PLG
Quiz 3 – B

Question 3
When diving from a boat, if you become caught in a
current at the surface and can’t get to the boat,
don’t fight it:

Fill your BCD to establish buoyancy (drop your
weights if you have a BCD problem)

Signal for help

Rest, wait for boat pick up

Above all, remain calm
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Question
Quiz 3-B Question 3 - PLG
Quiz 3 – B

Question 4
Avoid potential problems with aquatic life:

Treat all animals with respect

Be cautious in extremely murky water

Avoid wearing shiny, dangly jewelry

Remove any speared fish from the water immediately

Wear gloves and an exposure suit

Maintain neutral buoyancy – move slowly and carefully

Avoid contact with unfamiliar animals
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Question
Quiz 3-B Question 4 - PLG
Quiz 3 – B Question

5
To dive in an area for the first time - get an
orientation to the local area


The PADI Discover Local Diving experience is one
way to do this
Find out:

What’s interesting about the site

What to watch for

Unique dive skills or procedures
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Question
Quiz 3-B Question 5 - PLG
Quiz 3 – B


Question 6
You can control or prevent surface problems by:

Diving within your limitations

Establishing positive buoyancy on the surface
There are basic steps to assisting another diver:

Establish ample positive buoyancy

Calm the diver

Help the diver reestablish breathing control
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Question
Quiz 3-B Question 6 - PLG
Quiz 4 – B


Question 1
Local laws regulate how close you have to stay to
your flag, and how far boaters and skiers must stay
away
For areas where no laws stipulate these distances stay within 15 metres/50 feet of your flag and
boats should stay at least 30 to 60 metres/100 to
200 feet away
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Question
Quiz 4-B Question 1 - PLG
Quiz 4 – B




Question 4
During a dive, the increase pressure causes nitrogen
from the air you breathe to dissolve into your body
tissues.
Upon ascent - the excess nitrogen cannot stay
dissolved in your body
Nitrogen begins to come out of solution
As nitrogen dissolves out of your body tissues the excess nitrogen forms bubbles
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Question
Quiz 4-B Question 4 - PLG
Quiz 4 – B

Question 8
Metric - Enter Table 1 along the top depth row labeled Start

Follow the depth line to the right, use the exact or next greater depth – in
this case the 12 metres column

Follow the 12 metre column down until you find 39 minutes or the next
greater time – in this case 42 minutes


From 42 minutes, follow the horizontal row to the right to fine the letter I
Imperial - Enter Table 1 along the top depth row labeled Start

Follow the depth line to the right, use the exact or next greater depth – in
this case the 40 foot column

Follow the 40 foot column down until you find 39 minutes or the next
greater time – in this case 40 minutes

From 40 minutes, follow the horizontal row to the right to fine the letter I
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Question
Quiz 4-B Question 8 – PLG Table
Quiz 4 – B

Question 9
Metric - Flip the RDP over and find pressure group F along the top row

Along the left side of Table 3 locate 18 metres and follow the row
horizontally to the right until you are under pressure group F

There you’ll find two numbers 20 in the white portion and 36 in the blue
portion


36 minutes is the adjusted no decompression limit
Imperial - Flip the RDP over and find pressure group F along the top row

Along the left side of Table 3 locate 60 feet and follow the row horizontally
to the right until you are under pressure group F

There you’ll find two numbers 19 in the white portion and 36 in the blue
portion

36 minutes is the adjusted no decompression limit
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Question
Quiz 4-B Question 9 – PLG Table
Quiz 4 – B Question

Metric - Flip the RDP over and find pressure group K along the top row


10
Along the left side of Table 3 locate 18 metres and follow the row horizontally to the right until you
are under pressure group K

There you’ll find two numbers 30 in the white portion and 26 in the blue portion

30 minutes RNT + 19 minutes ABT = 49 minutes TBT

Flip the RDP over and along the top depth row find 18 metres

Follow the 18 metre column down until you find 49 minutes or the next greater time

From 51 minutes, follow the horizontal row to the right to fine the letter T
Imperial - Flip the RDP over and find pressure group K along the top row

Along the left side of Table 3 locate 60 feet and follow the row horizontally to the right until you
are under pressure group K

There you’ll find two numbers 29 in the white portion and 26 in the blue portion

29 minutes RNT + 19 minutes ABT = 48 minutes TBT

Flip the RDP over and along the top depth row find 60 feet

Follow the 60 foot column down until you find 48 minutes or the next greater time

From 49 minutes, follow the horizontal row to the right to fine the letter T
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Question
Quiz 4-B Question 10 – PLG Table
Quiz 1 – B



Question 3
At the surface
there is 1
atmosphere of
pressure
Every 10 m/33 ft.
is 1 additional
atmosphere of
pressure
20 m/66 ft. is 3
atmospheres of
pressure
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Question
Quiz 1-B Question 3 - PLG
Quiz 1 – B

Question 5
If you breathe
normally, keeping
the airway to
your lungs open,
no problem.
Expanding air
escapes and your
lungs maintain
their normal
volume.
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Question
Quiz 1-B Question 5 - PLG
Quiz 1 – B

Question 6
If you can’t
equalize,
discontinue the
dive. Continuing
to descend with
an unequalized
air space may
result in a
ruptured ear
drum.
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Question
Quiz 1-B Question 6 - PLG
Quiz 1 – B

Question 8
Water can enter
a tank by
backing up
through a
regulator, so
having the
regulator
attached doesn’t
guarantee a dry
interior.
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Question
Quiz 1-B Question 8 - PLG
Quiz 1 – B

Question 10
The mask
creates an air
space you must
equalize during
descent to
prevent a
squeeze – that’s
why the mask
must enclose
your nose.
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Question
Quiz 1-B Question 10 - PLG
Quiz 2 – B

Question 1
When light
changes speed
going from water
to air, it shifts its
course slightly,
magnifying
everything about
25 percent.
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Question
Quiz 2-B Question 1 - PLG
Quiz 2 – B

Question 2
Sound travels
about four times
faster in water
than in air. This
makes it difficult
to tell where a
sound comes
from.
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Question
Quiz 2-B Question 2 - PLG
Quiz 2 – B

Question 3
Water conducts
heat about 20
times faster than
air does,
meaning that for
a given
temperature,
water cools you
much faster.
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Question
Quiz 2-B Question 3 - PLG
Quiz 2 – B

Question 4
If you streamline
yourself by
swimming level
and keeping your
hoses and
equipment
tucked in close,
you save energy.
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Question
Quiz 2-B Question 4 - PLG
Quiz 2 – B

Question 6
You’ll find that
it’s not unusual
to have a small
amount of water
in your regulator
or snorkel,
particularly after
clearing it. No
problem!
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Question
Quiz 2-B Question 6 - PLG
Quiz 2 – B

Question 7
The quick release
is the most
important feature
of any weight
system.
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Question
Quiz 2-B Question 7 - PLG
Quiz 2 – B

Question 8
Waving at the
surface means
“HELP!” so don’t
wave as a
greeting to get
attention – you
will!
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Question
Quiz 2-B Question 8 - PLG
Quiz 2 – B


Question 10
Mark your
alternate air
source so your
buddy can
identify it quickly.
Secure the
alternate in the
triangle formed
by your chin and
the lower corners
of your rib cage.
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Question
Quiz 2-B Question 10 - PLG
Quiz 3 – B

Question 1
You define
underwater
visibility based
on how far you
can see – some
divers add that
the visibility is
the horizontal
distance you can
recognize
another diver.
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Question
Quiz 3-B Question 1 - PLG
Quiz 3 – B

Question 7
With an
unresponsive
diver, the primary
concern is to
check for
breathing and to
begin rescue
breaths if the
diver isn’t
breathing.
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Question
Quiz 3-B Question 7 - PLG
Quiz 3 – B

Question 8
If you have a
problem at the
surface,
immediately
establish
buoyancy by
either inflating
your BCD or
dropping your
weights.
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Question
Quiz 3-B Question 8 - PLG
Quiz 3 – B



Question 9
A submersible
pressure gauge
is a passive
device.
You have to read
it, or it doesn’t
do you any good.
Check your SPG
frequently.
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Question
Quiz 3-B Question 9 - PLG
Quiz 3 – B

Question 10
Administer
emergency
oxygen to an
unresponsive
diver.
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Question
Quiz 3-B Question 10 - PLG
Quiz 4 – B

Question 2
Contaminated air
is rare as long as
you get your air
from a reputable
source, such as a
professional dive
retailer/resort.
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Question
Quiz 4-B Question 2 - PLG
Quiz 4 – B

Question 3
A diver affected
by nitrogen
narcosis behaves
as you might
expect someone
to behave if
intoxicated.
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Question
Quiz 4-B Question 3 - PLG
Quiz 4 – B

Question 5
Because bubbles
can form in
different places
in the body, DCS
symptoms can
vary.
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Question
Quiz 4-B Question 5 - PLG
Quiz 4 – B


Question 6
Slowly ascend
from all dives at
a rate that does
not exceed 18
metres/60 feet
per minute.
Slower is fine.
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Question
Quiz 4-B Question 6 - PLG
Quiz 4 – B


Question 7
Limit your
maximum depth
to your training
and experience
level.
As an Open
Water Diver, limit
your dives to a
maximum of 18
metres/60 feet.
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Question
Quiz 4-B Question 7 - PLG
Quiz 4 – B

Question 8
Side 1 set the white triangle to 11 metres/39 feet – in this case 12
metres/ 40 feet



Move yellow pointer triangle to point to 39 minutes
Read up the pointer centerline until it crosses 12 metres/
45 foot depth curve
To the right of this intersection, find the pressure group whose
arrow pierces 12 metres/45 feet - pressure group I
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Quiz 4-B Question 8 – PLG Wheel
Quiz 4 – B





Question 9
Side 2 indicated F diver
Side 1 find the letter F in the white p.g. index and the black
arrow that goes with it
Set the tip of this arrow so that it touches (not pierces) the
17 metre/59 foot depth curve – in this case 18 metre/60 feet
Hold the disk in place, rotate the pointer until the centerline is
aligned with the NDL mark on the 18 metres/60 foot curve
The yellow triangle at the end of the pointer should point to
36 minutes maximum allowable bottom time
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Question
Quiz 4-B Question 9 – PLG Wheel
Quiz 4 – B Question






10
Side 2 indicated K diver
Side 1 find the letter K in the white p.g. index and the black arrow
that goes with it
Set the tip of this arrow so that it touches (not pierces) the
17 metres/56 foot depth curve – in this case 18 metres/60 feet
Hold the disk in place, rotate the pointer until the centerline is aligned
with 19 minutes
Read up the pointer centerline until it crosses the 18 metres/60 foot
depth curve
Find the pressure groups whose arrow pierces 18 metres/60 feet –
pressure group T
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Quiz 4-B Question 10 – PLG Wheel