Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AVMED > EXAM > Flashcards

EXAM Flashcards

1
Q

ISA MSL Pressure

A

1013.25hPa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

At what alt is pressure half that of SL

A

18,000ft (still 21% oxy)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Above what alt can you expect hypoxia?

A

10,000ft (physiological atmosphere below)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Atmosphere is made up of?

A

78% Nitrogen
21% Oxy
1% Mix of other gasses (Argon)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Below which alt is air density highest?

A

5000ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Pressure change with altitude

A

1 hpa/30ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Explain Daltons law

A

Partial pressures;
States the total pressure of a mixture of gasses is the sum of the partial pressures of its components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Explain Boyles law

A

The relationship between pressure & volume.
As pressure increases, volume decreases & vice versa.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Explain Henrys law

A

(Heinekin)
States that the amount of gas that is dissolved in a liquid is directly proportional to the partial pressure of that gas. When pressure is reduced, the gas will come out of solution.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is hypoxia

A

Where the body is receiving insufficient oxygen to maintain normal function.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is TUC

A

The time period from the moment hypoxia sets in until you can no longer do anything about it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

TUC at F250?

A

2-5mins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

PRICE Check?
Our version?

A

Pressure, regulator, Indicator, Connections, Emergency.

ON, CONCENTRATION NORM, PRESSURE NORM, FLOW, CONNECTIONS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

4 Types of DCS?

A

Bends, Chokes, Creeps, staggers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Protocol for DCS emergency

A

Oxy on, 100%
Mask secure
Declare emergency
Stay on Oxy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Restrictions for chamber

A

Nil blood donations or diving 24hrs prior

Nil vaccines 12hrs prior

17
Q

4 stages of immersion hypothermia

A
  1. cold shock
  2. swim failure
  3. hypothermia
  4. Collapse
18
Q

Why are our zoomers 3% conductive fibre?

A

Prevent static charge build up

19
Q

Why can’t we use bleach or fabric softener?

A

Parrifins

20
Q

What is found in the retina

A

Cones: Colour, sharp vision, daytime.

Rods: Black & white, movement & periherals

21
Q

Symptoms of hypoxia

A

dizziness, nausea, air hunger, tingling, drunkenness

22
Q

How does Boyle’s law apply to trapped gas?
Where would you expect this?

A

Volume inversely proportional to pressure.
Trapped gas in GI, Teeth, lungs.
Outside pressure decreases, so does pressure inside the body, trapped gasses expand.

23
Q

How does Henrys law apply to evolved gas & therefore DCS.

A

Nitrogen is dissolved within the body, during Rapid decompression, bubbles come out of solution & form in peripheral tissues.

24
Q

When can DCS occur?

A

exposure to pressures above 18,000ft and rapid decompression.

25
Q

Why is hypoxia dangerous

A

insidious

26
Q

What material/colour is best for sunnies

A

Polycarbonate
Green, brown & grey.

27
Q

Occupational noise limits

A

85dB for 8hr day
140dB instant

28
Q

How many hours of wakefulness before fatigue sets in

A

16hrs

29
Q

What seatbelt prevents submarining

A

5 point

30
Q

IM SAFE

A

Illness
Medication
Stress
Alcohol & Drugs
Fatigue
Eating

31
Q

Med grading system?

A

Air
Ground
Zone

32
Q

CREEP Acronym

A

Container
Restraint
Environment
Energy absorption
Post crash factors

33
Q

Angular acceleration/linear motion?

A

Somatogyral
Somatogravic

34
Q

Types of spatial disorientation

A

Unrecognized
Recognized
Recognized & incapacitating

35
Q

4 types of SD?

A

Coriolis effect
Graveyard spiral
Graveyard spin
Leans

36
Q

G LOC recovery

A
  • sometimes nil visual symtoms
  • 12-15secs complete incapacitation
  • 12-15secs relative incapacitation
  • 2min performance impairment
  • 24hr subtle impairment
37
Q

What is the most important factor in ejecting?

A

Making the decision to do so.

AVMED (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions