Certified Hyperbaric Technologist Test CHT Fire Safety and Oxygen Hazards in Hyperbaric Environments 3

Question 1

NFPA 99 classifies hyperbaric chambers into which categories based on size and use?

Accepted Answer

Class A, B, or C

Answer

NFPA 99 classifies hyperbaric chambers as Class A (multiplace, treating multiple patients) and Class B (monoplace, treating one patient at a time).

Question 2

Which organizations provide the primary safety standards governing hyperbaric facility fire safety in the United States?

Accepted Answer

NFPA and UHMS

Answer

NFPA 99 (National Fire Protection Association) sets facility safety standards and UHMS (Undersea and Hyperbaric Medical Society) provides clinical and operational standards for hyperbaric facilities.

Question 3

After completion of hot work near hyperbaric oxygen systems, a fire watch must be maintained for a minimum of:

Accepted Answer

30 minutes

Answer

NFPA standards require a minimum 30-minute fire watch after hot work is completed to detect any smoldering that could ignite into a fire after workers leave.

Question 4

In an oxygen-enriched atmosphere, ordinary combustible materials will ignite at:

Accepted Answer

Lower temperatures than in normal air

Answer

In oxygen-enriched atmospheres, the auto-ignition temperature of ordinary materials is significantly reduced, meaning they catch fire much more easily.

Question 5

Per NFPA 55, bulk oxygen storage cylinders must be kept a minimum of how far from combustible materials?

Accepted Answer

20 feet

Answer

NFPA 55 requires a minimum separation of 20 feet between bulk oxygen storage and any combustible or flammable materials to reduce fire risk.

Certified Hyperbaric Technologist Test Practice Test

Certified Hyperbaric Technologist Test Practice Test

Certified Hyperbaric Technologist Test CHT Fire Safety and Oxygen Hazards in Hyperbaric Environments 3