Reactivate Flashcards

1
Q

To equalize my ears, I

A

blow gently against pinched nostrils.

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2
Q

I should equalize

A

early and often, before I feel discomfort.

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3
Q

If I can’t equalize, I should

A

stop descending, signal my buddy, ascend slightly and try again.

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4
Q

Continuing to descend without equalizing can cause injury (True/False)

A

True

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5
Q

While descending, to properly control my buoyancy, I should add air to my BCD

A

in small amounts frequently.

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6
Q

When there is a current during the dive on the bottom, the general rule is to swim

A

into the current.

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7
Q

The most important rule in scuba diving is to

A

breathe continuously and never hold my breath.

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8
Q

If I disregard the most important rule in scuba diving, I may suffer

A

serious lung overexpansion injuries.

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9
Q

My buddy and I are PADI Advanced Open Water Divers diving at 20 metres/66 feet. Assuming the same breathing rate, our air supply will last ____ as long as at the surface.

A

one-third

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10
Q

Underwater, I should breathe

A

slowly, deeply and continuously.

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11
Q

If I begin to breathe hard and feel like I can’t get enough air from my regulator, I should

A

stop, hold on to something and rest until normal breathing resumes.

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12
Q

Boats are supposed to stay about ________ from my dive flag if no other laws/regulations apply, but I shouldn’t assume boaters see or recognize my flag.

A

30 to 60 metres/100 to 200 feet

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13
Q

To reduce the risk of being hit by a boat because the driver can’t see us, we should avoid swimming just below the surface (True/False).

A

True

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14
Q

If the boat engine isn’t running, we can get near the propeller if necessary (True/False).

A

False.

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15
Q

If any aspect of a dive, including my assessment of the environment, causes me significant concern or anxiety, I should

A

not dive.

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16
Q

Ultimately, I am responsible for my own safety while diving and must make the final decision to dive (True/False).

A

True

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17
Q

An overhead environment is an environment in which I cannot swim straight up to the surface (True/False).

A

True

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18
Q

If I’m not warm enough during a dive, I should end the dive and use more exposure protection the next time in water the same temperature (True/False).

A

True

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19
Q

If I begin to shiver uncontrollably, I should

A

end the dive immediately, dry off and seek warmth.

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20
Q

The best way to get an exposure suit that fits properly, is comfortable and appropriate for the water where I’ll be diving, is to have a professional at my local PADI Resort or Dive Center help me (True/False).

A

True

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21
Q

When diving from a boat in a current, I may use a __________ line to reach the front of the boat.

A

swim

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22
Q

If I surface away from a boat in a moderate current, I should

A

swim across the current to the trail line.

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23
Q

If I get carried past the boat by a current and cannot reach the trail line, I should

A

establish buoyancy and signal the crew to pick me up.

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24
Q

When diving, I should have either a visual surface signaling device or an audible signaling device (True/False).

A

False

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25
Q

If I surface and the boat is not in sight, I should establish buoyancy, stay with my buddy and deploy my surface signaling devices (True/False).

A

True

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26
Q

A dive boat’s roll call or other accounting system is important for my safety, because it makes sure all divers are aboard before leaving the site (Tru/eFalse).

A

True

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27
Q

Dive computers provide no stop (no decompression) information based on

A

mathematical models that work for most people most of the time.

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28
Q

Failing to take my computer on every dive, sharing it, or turning it off between dives may increase

A

my risk of DCS.

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29
Q

What are the six guidelines for diving with your computer

A
  1. Stay well within your computer’s limits.
  2. Dive the plan.
  3. Follow the most conservative computer, yours or your buddy’s.
  4. Watch your SPG.
  5. Start at the deepest depth and progress shallower.
  6. Ascend slowly and make a safety stop.
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30
Q

As I descend, my computer shows a ______ no stop (no decompression) time. As I ascend, it shows a _______ no stop (no decompression) time.

A

shorter, longer

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31
Q

My no stop (no decompression) time for a repetitive dive is shorter because my computer is accounting for________.

A

residual nitrogen

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32
Q

According to the guidelines for diving with a computer, when making several dives, make the ________ dive first, with each dive progressively _______.

A

deepest, shallower

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33
Q

The three primary benefits of the buddy system are practicality, safety and fun (True/False).

A

True

34
Q

You should inspect your gear before each dive (True/False).

A

True

35
Q

When you are properly weighted, holding a normal breath with a deflated BCD, you should float at _________ level.

A

Eye

36
Q

In an emergency you need to be able to quick-release

A

enough weight to become positively buoyant.

37
Q

Proper weighting and mastering buoyancy control has nothing to do with avoiding damage to sensitive aquatic life (True/False).

A

False

38
Q

A good rule of thumb is to stay within __________ of my buddy.

A

two seconds

39
Q

If separated from my buddy, the general procedure is to look for no more than ______ minute(s), then reunite on the surface if not found.

A

one

40
Q

Nearly all injuries from aquatic life are either unintended by the organism or result from ___________ behavior by the organism.

A

defensive

41
Q

Generally, I should avoid contact with organisms. This is especially true of ones that aren’t familiar to me (True/False).

A

True

42
Q

If I spot a large, potentially aggressive animal, I should

A

watch it and swim slowly away.

43
Q

The priority with an unresponsive diver underwater is

A

getting the diver to the surface.

44
Q

Question 2
The primary concerns with an unresponsive diver at the surface are check for breathing, and provide rescue breaths if the diver isn’t breathing (True/False).

A

True

45
Q

The first step in assisting an unresponsive diver at the surface is to

A

establish buoyancy.

46
Q

If my computer fails during a dive, (choose all that apply):
- continue the dive with my backup, if I have one.
- continue the dive following my buddy’s computer.
- ascend, make a safety stop and surface if I don’t have a backup.

A

continue the dive with my backup, if I have one.
AND
ascend, make a safety stop and surface if I don’t have a backup.

47
Q

If I don’t have a backup computer and I can’t use dive tables, after a computer failure I have to wait 12 or more hours before resuming diving with a working computer (True/False).

A

True

48
Q

If I reach my ascent pressure before reaching my planned ascent point, it is acceptable to use my reserve to continue to my ascent point (True/False).

A

False

49
Q

What are the 9 symptoms of decompression sickness (DCS)?

A

BRAIN: dizziness; shock;
MOVEMENT: paralysis; tingling; joint and limb pain; numbness;
SERIOUS STUFF: difficulty breathing; weakness and prolonged fatigue; unconsciousness and death

50
Q

“Decompression illness” is the same thing as “decompression sickness” (True/False)

A

False

51
Q

A diver with suspected decompression illness should stay lying down (True/False).

A

True

52
Q

If I accidentally exceed my computer’s no stop (no decompression) limits, I will need to

A

make one or more emergency decompression stops.

53
Q

If I surface without completing an emergency decompression stop, I should

A

relax, breathe 100 percent oxygen and monitor myself for DCS symptoms.

54
Q

One way to determine a minimum surface interval is to simply scroll my dive computer’s no stop (no decompression) limits at intervals until I have enough time at the desired depth (True/False).

A

True

55
Q

Protecting myself from the sun requires only wearing sunscreen and/or protective clothing (True/False).

A

False

56
Q

If I feel seasick, I should go

A

to the lower center of the boat in fresh air.

57
Q

If I make only a single dive and have not been diving for several days, the recommended minimum interval before flying is

A

12 hours

58
Q

If I make repetitive dives or multiday dives (diving every day for several days in a row), the recommended minimum interval before flying is

A

18 hours

59
Q

If I have completed any dives requiring emergency decompression stops, the recommended minimum interval before flying is

A

more than 18 hours

60
Q

What cabin altitude is assumed for no flying recommendations

A

600-2,400m (2,000-8,000 feet)

61
Q

The best way to manage surface problems is to follow three steps:

A

1) Establish buoyancy
2) Stop, think then act
3) Ask for help

62
Q

What 4 steps are used to manage a panicked responsive diver:

A

1) Establish buoyancy for you and the diver
2) Calm and reassure the diver
3) Help the diver reestablish normal breathing
4) Assist the diver to the boat or shore if required

63
Q

On which dives should the approach to diving that helps me avoid and manage problems by following safe guidelines, having the recommended equipment and doing as I was trained

A

on all dives, even when it doesn’t seem necessary.

64
Q

The first thing to do when I have a problem at the surface is to

A

establish buoyancy.

65
Q

When assisting a responsive diver at the surface, always begin

A

with buoyancy.

66
Q

It’s recommended that my fitness be suited to the type of diving I do, plus a physical reserve (True/False).

A

True

67
Q

If I feel ill before a dive, I should take the appropriate medicines that make me feel better before I start the dive (True/False).

A

False

68
Q

Even when I plan a relaxing dive, circumstances can make diving strenuous on my heart and cardiovascular system (True/False).

A

True

69
Q

If I may be predisposed to heart disease, there’s really nothing I can do about it (True/False).

A

False

70
Q

Signs/symptoms of contaminated air may include (3 things)

A

1) cherry red lips/nail beds
2) nausea
3) headache

71
Q

To avoid contaminated air, only have my cylinder filled

A

at professional scuba operations.

72
Q

After a dive, my buddy has a headache and is dizzy. His lips are bright red, and after taking off his gloves I see his nail beds look very red, too. What should I do?

A

have him breathe fresh air/emergency oxygen

73
Q

What are the signs of Gas Narcosis?

A

1) Feeling intoxicated (Loss of coordination; Slowed thinking and confusion; Slowed reactions; Inappropriate laughter)
2) Depression
3) False sense of security (Ignoring or disregard for safety)
4) Anxiety and panic (especially when under stress at depth)

74
Q

Most divers begin to notice gas narcosis at approximately

A

30m/100ft

75
Q

Prescription or over-the-counter drugs may make me more susceptible to gas narcosis (True/False).

A

True

76
Q

If my buddy or I seem to be affected by narcosis, simply wait a few moments and it will probably pass (True/False).

A

False

77
Q

What is the predive safety check mnemonic

A

BWRAF (Burger With Relish And Fries)

78
Q

What does the predive check cover

A

B - BCD
W - Weight
R - Releases
A - Air test main and alternate regulator
F - Final (Dangling hoses, etc)

79
Q

What are the 3 ways of entering deep water

A

1) Giant Stride
2) Back roll
3) Controlled Seated Entry

80
Q

Steps in descent

A

1) Check buddy is ready to go
2) Orient yourself with something on the surface
3) deflate BCD
4) equalise early and often
5) gradually inflate BCD to control buoyancy