CPR Fire, Smoke & Water Damage Remediation 4

Question 1

What is the purpose of 'dehumidification' versus 'evaporation' in structural drying?

Accepted Answer

Evaporation moves moisture from materials into the air; dehumidification removes that moisture from the air

Answer

Evaporation moves moisture from wet materials into the air, and dehumidification then extracts that airborne moisture to maintain vapor pressure differential and continue drying.

Question 2

A restorer encounters corrosion on chrome fixtures within hours of a fire. The most likely cause is:

Accepted Answer

Hydrochloric acid gases released by burning PVC plastics settling on metal surfaces

Answer

Burning PVC releases hydrochloric acid (HCl) vapor that rapidly attacks and corrodes chrome and other metal surfaces within hours of exposure.

Question 3

Under IICRC S520 mold remediation guidelines, which condition triggers a recommendation for full containment versus limited containment?

Accepted Answer

Mold-affected area greater than 100 square feet

Answer

The IICRC S520 recommends full containment when the affected area exceeds 100 square feet to prevent cross-contamination during remediation.

Question 4

What does a 'moisture map' document during water damage restoration?

Accepted Answer

Moisture meter readings at specific locations to track drying progress over time

Answer

A moisture map records meter readings at designated points on a floor plan at each visit to document drying progress and defensibly demonstrate due diligence.

Question 5

Which type of air mover placement is most effective for drying hardwood flooring after water damage?

Accepted Answer

Angled low across the floor surface at a 45-degree angle to maximize surface airflow

Answer

Positioning air movers low and angled at 45 degrees across the floor maximizes surface airflow velocity to accelerate evaporation from hardwood.

(CPR) Certified Professional Restorer Practice Test

(CPR) Certified Professional Restorer Practice Test

CPR Fire, Smoke & Water Damage Remediation 4