ODP Halons and Fire Suppression Systems

Question 1

What is the primary application of halon compounds that makes their phase-out particularly challenging?

Accepted Answer

Fire suppression in critical facilities

Answer

Agricultural fumigation

Answer

Refrigeration and air conditioning

Answer

Foam insulation manufacturing

Question 2

What does the numbering system in 'Halon 1301' indicate?

Accepted Answer

The number of carbon, fluorine, chlorine, and bromine atoms respectively

Answer

The year it was developed, followed by its ODP value

Answer

Its fire suppression efficiency rating on a 100-point scale

Answer

The pressure rating in psi at which it is stored

Question 3

What is the Ozone Depletion Potential (ODP) of Halon 1301 relative to CFC-11?

Accepted Answer

10.0

Answer

1.0

Answer

5.0

Answer

16.0

Question 4

How do halons suppress fires at the molecular level?

Accepted Answer

By interrupting the chemical chain reactions that sustain combustion

Answer

By cooling the fuel below its ignition temperature

Answer

By displacing oxygen below the level needed for combustion

Answer

By forming a physical barrier between fuel and oxidizer

Question 5

Which halon was most widely used in portable handheld fire extinguishers?

Accepted Answer

Halon 1211

Answer

Halon 1301

Answer

Halon 2402

Answer

Halon 1202

Question 6

Halon 1301 is most effective against which classes of fires?

Accepted Answer

Class B (flammable liquids) and Class C (electrical) fires

Answer

Class A (ordinary combustibles) only

Answer

Class D (combustible metals) only

Answer

Class K (cooking oils) fires only

Question 7

What is the chemical formula for Halon 1301?

Accepted Answer

CBrF3

Answer

CBrClF2

Answer

C2Br2F4

Answer

CF3Br2