BA 001

Question 1

What RPE is used by the LFB

Answer 1

SDBA
EDBA
RESPIRATORS
PRPS - POWERED RESPIRATOR PROTECTIVE SUITS

Question 2

What is an acute respiratory risk

Answer 2

Those that would pose an immediate risk of injury or immediate threat to Health of RPE is removed

Question 3

What is an chronic respiratory risk

Answer 3

Those that present a longer term risk to Health but do not pose an immediate risk of injury or risk to Health if RPE is removed

Question 4

What is the purpose of BA

Answer 4

To reduce the risk of respiratory injury to fire fighters and provide safe working practices whenever BA is used.

Question 5

When should duel purpose facemasks be worn

Answer 5

Where the hazard involves airborne particulars and where conditions are not expected to deteriorate to an extent where BA is needed.

RESPIRATORS are not to be used in oxygen deficient or toxic atmospheres.

Question 6

Define respiration

Answer 6

Transportation of oxygen from the outside air to the cells within tissues and the transportation of carbon dioxide in the opposite direction.

Question 7

What percentage of oxygen makes up the compressed air in a BA cylinder

Answer 7

21%

Question 8

Consumption rates vary due to what 3 factors.

Answer 8

Physical exertion
Physical fitness
Stress

Question 9

What 4 ways does the body dissipate excess heat

Answer 9

Radiation - heat naturally flows from a hotter to cooler body.

Convection - cooling by air current flowing over the body.

Vaporization- blood is cooled in the lungs by the inhalation of cool air.

Evaporation - sweat covers the skin and cooling takes place as the sweat evaporates.

Question 10

How does heat stress effect a human

Answer 10

Deteriation of -

Coordination
Manipulation
Visual skills
Reasoning

Question 11

How do fire fighters suffer progressively from heat stress.

Answer 11

Heat cramps
Heat exhaustion
Heat stroke

Question 12

What are the various methods to limit heat stroke

Answer 12

Rotate crews

Use a holding area in the shade

Available drinking water

Reserve crews in shade relaxed dress

Radial cooling

Not using fire fighters intended for BA for other physical roles

Attendance of LAS on site.

Question 13

Air inhaled from the atmosphere or compressed in a BA cylinder contains approx ?? Oxygen and ?? Carbon dioxide.

Exhaled air contains ?? Oxygen and ?? Carbon dioxide.

Answer 13

21%
0.04%

16%
4%