Certified Hyperbaric Technologist Test CHT Fire Safety and Oxygen Hazards in Hyperbaric Environments

Question 1

At what minimum oxygen concentration does a hyperbaric environment become significantly more hazardous for fire risk?

Accepted Answer

23.5%

Answer

21%

Answer

25%

Answer

28%

Question 2

What clothing material is required for patients entering a hyperbaric chamber?

Accepted Answer

100% cotton

Answer

Polyester

Answer

Nylon

Answer

Wool blend

Question 3

If a fire ignites inside a monoplace hyperbaric chamber during a treatment, what is the FIRST priority action?

Accepted Answer

Begin immediate emergency decompression

Answer

Activate the external fire suppression system

Answer

Call the fire department

Answer

Have the patient attempt to extinguish the flame

Question 4

How does the rate of fire spread in a hyperbaric oxygen environment compare to normal atmospheric air?

Accepted Answer

Faster due to enhanced oxidation at elevated partial pressures

Answer

The same rate

Answer

Slower due to increased pressure dampening combustion

Answer

Unpredictably variable

Question 5

Static electricity buildup in hyperbaric chambers can best be reduced by:

Accepted Answer

Grounding the patient and chamber to a common reference point

Answer

Using synthetic materials for patient gowns

Answer

Increasing treatment pressure

Answer

Using plastic medical equipment inside the chamber

Question 6

Which of the following is considered a potential ignition source inside a hyperbaric chamber?

Accepted Answer

Static electrical discharge

Answer

Cotton patient gown

Answer

Distilled water

Answer

Silicone-based sealant

Question 7

Why are petroleum-based products strictly prohibited inside hyperbaric chambers?

Accepted Answer

They are highly flammable in oxygen-enriched environments

Answer

They emit toxic fumes during pressurization

Answer

They damage chamber viewport seals

Answer

They interfere with pressure gauges