IICRC WRT UPDATED ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE
●● When should water damage restoration services begin?
Answer: After a restorer entered into a properly written contract
●● Which term describes the rate of water vapor passing through a
material?
Answer: Permeance
●● Who should a technician get documented authorization from before
applying an antimicrobial (biocide)?
Answer: The owner or occupant
●● What should a restorer ask if cellulosic insulation becomes wet?
Answer: Remove insulation then dry the structure
●● What do moisture detection instruments allow a restorer to evaluate
and document?
Answer: Psychrometric conditions and moisture content or level
readings
, ●● Which class of water intrusion is it where the affected materials
represent between -5% to -40% of the combined surface area?
Answer: Class 2
●● What is recommended to minimize or control airborne contaminants
during restoration?
Answer: Install Air Filtration Devices (AFDs)
●● Which material loses most of its structural integrity when wet but
regains its strength when dry?
Answer: Gypsum board (drywall)
●● In addition to controlling humidity, what else should a restorer
manage to increase the rate of drying?
Answer: Surface temperatures of affected materials
●● What happens when the surface temperature of a material is at or
below the dew point temperature of the air?
Answer: Condensation
●● What is typically a result of introducing warm, dry air movement
into wall cavities?
Answer: Increased rate of evaporation
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE
●● When should water damage restoration services begin?
Answer: After a restorer entered into a properly written contract
●● Which term describes the rate of water vapor passing through a
material?
Answer: Permeance
●● Who should a technician get documented authorization from before
applying an antimicrobial (biocide)?
Answer: The owner or occupant
●● What should a restorer ask if cellulosic insulation becomes wet?
Answer: Remove insulation then dry the structure
●● What do moisture detection instruments allow a restorer to evaluate
and document?
Answer: Psychrometric conditions and moisture content or level
readings
, ●● Which class of water intrusion is it where the affected materials
represent between -5% to -40% of the combined surface area?
Answer: Class 2
●● What is recommended to minimize or control airborne contaminants
during restoration?
Answer: Install Air Filtration Devices (AFDs)
●● Which material loses most of its structural integrity when wet but
regains its strength when dry?
Answer: Gypsum board (drywall)
●● In addition to controlling humidity, what else should a restorer
manage to increase the rate of drying?
Answer: Surface temperatures of affected materials
●● What happens when the surface temperature of a material is at or
below the dew point temperature of the air?
Answer: Condensation
●● What is typically a result of introducing warm, dry air movement
into wall cavities?
Answer: Increased rate of evaporation
