BA

Question 1

What are the symptoms of heat exhaustion?

Answer 1

Dizziness
Lethargy
Nausea
Abdominal discomfort
Increased heart rate

Question 2

What is the function of BA?

Answer 2

To enable the wear to work in an environment that otherwise would not support life

Question 3

Define:
Full Duration
Working Duration
Safety Margin

Answer 3

Full duration: the time it takes for a fully charged cylinder to empty completely

Working Duration: The time it takes for a full cylinder to reach 55 (+- 5) bar (safety margin) or the whistle sounds

Safety Margin: the time it takes from 55bar to completely empty

Question 4

At what percentage does carbon dioxide reach to send a signal to the brain to exhale?

Answer 4

4%

Question 5

What are the 4 irrespirable atmospheres?

Answer 5

1. Smoke
2. Toxic fumes and gases
3. Oxygen Deprived
4. Extreme heat

Question 6

How much more efficient is Carbon Monoxide at combining with the haemoglobin than oxygen?

Answer 6

200 times

Question 7

What are two ways an oxygen deficient environment is created?

Answer 7

What are two ways an oxygen deficient environment is created?

Question 8

What are the six components of the face mask?

Answer 8

1. Speech diaphragm
2. Inner mask
3. DV port
4. Head harness and neck strap
5. Polycarbonate visor
6. Exhalation valve