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Scuba Diving > Section 5 > Flashcards

Section 5 Flashcards

1
Q

One way to find a minimum surface interval with a computer is to periodically check the no stop times for the depth you want, between dives
True/false

A

True

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2
Q

I can use the RDP Table or eRDPml to find the exact time my dive computer requires for a minimum surface interval
True/false

A

False
The RDP Table or eRDPml will give you a useful estimate of your computer’s minimum surface interval, but it will probably not be exactly the same

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3
Q

Going to altitude after diving may be a problem because the
A. Lower pressure can increase DCS risk
B. Higher pressure can increase DCS risk
C. Lower pressure can increase oxygen problems
D. Higher pressure can increase oxygen problems

A

A. Lower pressure can increase DCS risk

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4
Q

The difference between flying after diving and altitude diving is that when flying after diving, I go to altitude after a dive, and in altitude diving, I begin and end a dive at altitude
True/false

A

True

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5
Q 
My buddy and I have made two no stop dives a day for the last two days. Based on current recommendations, we should wait at least \_\_\_\_ after our last dive before flying
A. 6 hours
B. 12 hours
C. 18 hours
D. 24 hours
A

C. 18 hours

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6
Q

Flying after diving recommendations may change over time, so I should check online and print sources to keep up with and follow the most current ones
True/false

A

True

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7
Q 
When diving at an altitude of \_\_\_\_ or higher, I need to use altitude diving procedures
A. 150 m/500 ft
B. 300 m/1000 ft
C. 450 m/1500 ft
D. 600 m/2000 ft
A

B. 300 m/1000 ft

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8
Q

Cold and/or strenuous dives may be a problem win respect to DCS risk because
A. I may end the dives with more dissolved nitrogen than calculated by dive computer or tables
B. It is easier to ascend too fast when I make a cold or strenuous dive
C. Cool water can shut down my computer

A

A. I may end the dives with more dissolved nitrogen than calculated by dive computer or tables

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9
Q

If I’m cold or exert myself strenuously during a dive, I should
A. Not make a safety stop
B. Be even more conservative

A

B. Be even more conservative

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10
Q

Using the RDP Table or eRDPml, I should calculate a cold or strenuous dive as
A. 4 m/10 ft shallower than the actual depth
B. 4 m/10 ft deeper than the actual depth
C. Having no surface interval
D. Requiring emergency decompression

A

B. 4 m/10 ft deeper than the actual dive

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11
Q

If I go over a no stop limit, I
A. Must surface at a very slow rate
B. Will have to make one or more emergency decompression stops

A

B. Will have to make one or more emergency decompression stops

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12
Q

The depths and times of emergency decompression stops are
A. Given by my dive computer
B. Standardized as 6 m/20 ft and 3 m/10 ft
C. Not important, as long as I make the stops

A

A. Given by my dive computer

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13
Q

If I should surface without making an emergency decompression stop, I should get a fresh cylinder of air and then go back underwater to make the stop
True/false

A

False
If you miss an emergency decompression stop, relax, breathe emergency oxygen and monitor yourself for DCS symptoms, and don’t dive for at least 24 hours

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14
Q

The term “decompression illness”
A. Is another term for DCS
B. Refers to lung overexpansion injuries
C. Includes both lung overexpansion injuries and DCS

A

C. Includes both lung overexpansion injuries and DCS

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15
Q

Treatment for most cases of DCI requires ____
A. Recompression in a chamber
B. Long sleep
C. Putting the diver back underwater

A

A. Recompression in a chamber

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16
Q

Signs and symptoms of gas narcosis include (choose all that apply
A. Discomfort in the ears and /or sinuses
B. Loss of coordination
C. Slowed thinking
D. Ignoring or disregard for safety

A

B, C, D

17
Q

Gas narcosis is thought to be harmful itself

True/false

A

False
Gas narcosis is not thought to be harmful itself. The hazard is that it impairs the good judgement, clear thinking and timely responses you need to avoid and manage problems underwater

18
Q

Gas narcosis is thought to be caused by the increased amount of dissolved gases in body tissues slowing nerve impulses that travel in the brain and nervous system
True/false

A

True

19
Q 
Most divers usually begin to notice gas narcosis at a depth of approximately 
A. 1& m/60 ft
B. 30 m/100 ft
C. 40 m/130 ft
D. 50 m/165 ft
A

B. 30 m/100 ft

20
Q

Before a dive, I feel a bit tired. This may make narcosis
A. Noticeable at a shallower depth
B. Unlikely within recreational depth limits
C. Noticeable at a deeper depth

A

A. Noticeable at a shallower depth

21
Q

If I am diving and begin to feel intoxicated, I should
A. Signal my buddy to stay close
B. Stop my descent and go no deeper
C. Breathe deeply until my head clears
D. Signal my buddy to ascend to a shallower depth

A

D. Signal my buddy to ascend to a shallower depth

22
Q

Underwater navigation helps me save air and can help me get to an exit point the shortest way if I have a problem
True/false

A

True

23
Q 
The \_\_\_\_ is/are always my direction of travel when navigating with a compass
A. North needle
B. Lubber line
C. Bezel with index marks
D. Heading references
A

B. Lubber line

24
Q 
I should hold my compass so the \_\_\_\_ is/are aligned with the centerline of my body
A. North needle
B. Lubber line
C. Bezel with index marks
D. Heading references
A

B. Lubber line

25
Q 
As I swim while navigating with a compass, I should keep the \_\_\_\_ within the index marks
A. North needle
B. Lubber line
C. Bezel
D. Heading references
A

A. North needle

26
Q

With most electronic compasses, to navigate in a straight line, I swim with the same degree heading showing
True/false

A

True

27
Q

The Course Evaluation Questionnaire helps to maintain the quality of PADI courses and to recognize instructors for outstanding performance
True/false

A

True

28
Q 
As a new PADI Open Water Diver, I was trained to a maximum depth of \_\_\_\_ (or the actual depth I reached, if shallower)
A. 10 m/30 ft
B. 12 m/40 ft
C. 15 m/50 ft
D. 18 m/60 ft
A

D. 18 m/60 ft

29
Q

Generally, the purpose of the PADI System of diver education is to help me continue to enjoy diving
True/false

A

True

30
Q

I would find a minimum surface interval when, after a dive, I want to know how long the ____ would be
A. No stop time and depth for the next dive
B. Time at the surface

A

B. Time at the surface

Scuba Diving (11 decks)

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