CPR Fire, Smoke & Water Damage Remediation 2

Question 1

Which class of fire extinguisher is appropriate for energized electrical equipment fires?

Accepted Answer

Class C

Answer

Class C extinguishers use non-conductive agents safe for energized electrical equipment fires.

Question 2

What is 'pyrolysis' in the context of fire damage?

Accepted Answer

Thermal decomposition of materials without oxygen

Answer

Pyrolysis is the chemical decomposition of organic materials through heat in the absence of oxygen, leaving residues that complicate cleaning.

Question 3

During water damage restoration, what does the term 'Category 3' water indicate?

Accepted Answer

Grossly contaminated water carrying pathogens

Answer

Category 3 is grossly contaminated water (also called black water) that may carry pathogenic agents, sewage, or toxins.

Question 4

What is the primary purpose of hydroxyl generators in odor remediation after a fire?

Accepted Answer

To generate hydroxyl radicals that oxidize and destroy odor molecules

Answer

Hydroxyl generators produce hydroxyl radicals that chemically react with and neutralize malodorous compounds in the air and on surfaces.

Question 5

In the IICRC S500 standard, a Class 4 water damage situation is characterized by:

Accepted Answer

Water in cavities with low permeance materials

Answer

Class 4 involves water trapped in low permeance materials like hardwood, plaster, or concrete requiring specialty drying methods.

(CPR) Certified Professional Restorer Practice Test