1|Page
WRT CERTIFICATION EXAM |ACTUAL
QUESTIONS WITH VERIFIED
SOLUTIONS 2026
There are 3 levels of biocidal activity, according to the Environmental Protection
Agency (EPA): - correct-answer -1. Sanitizer (reduces pathogens to a safe level)
2. Disinfectant (destroys microorganisms, but not spores)
3. Sterilizer (destroys microorganisms, including their spores)
Whenever a chemical antimicrobial or biocide is used, restorers must follow the
label __________ explicitly. - correct-answer -directions
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Most antimicrobials require that the area of application be vacated by _________
and pets during application and for a period fo time after application. - correct-
answer -occupants
Establishing a ___ ________ is the best way to set restorative drying goals. A dry
standard is established by obtaining a moisture reading using an __________
material. - correct-answer -dry standard & unaffected
The numerical value form a moisture meter can be documented and used to
monitor progress. for this reason, the amount of moisture absorbed by semi-
porous structural materials is measured most accurately with a moisture _____,
not a moisture sensor. - correct-answer -meter
Because of their non-invasive nature and quick surveying capabilities, non-
invasive meters are the most effective tools for locating abnormal moisture
,3|Page
behind and beneath finishing materials such as _______ ____ and resilient _____
floor coverings. - correct-answer -ceramic tile & vinyl
A thermo-hygrometer is used to monitor any air that can influence the
___________ and/or ________ ________ with a restorative drying environment. -
correct-answer -temperature & relative humidity
To evaluate the progress of structural drying projects, restorers should measure:
1. moisture in __________ being dried (moisture content readings)
2. ___ being used to dry affected materials (psychrometric readings)
3. ___ produced by mechanical systems (dehumidifiers) - correct-answer -
materials, air, & air
Evaporation will increase when: - correct-answer -1. Wet materials are made
warmer.
, 4|Page
2. When drier air is used.
3. When air is moved more rapidly across the wet surface.
After excess water has been extracted, the time needed to dry wet materials is
determined by the ____ __ ___________. - correct-answer -rate of evaporation
As the water is rapidly evaporated, the water vapor is removed by
________________ or ___________. - correct-answer -dehumidification &
ventilation
___________ occurs when liquid changes to a vapor. Occurs as energy is
increased. - correct-answer -Evaporation
As moisture evaporates from a wet material, the surface of the material becomes
______ because energy is released from the material. - correct-answer -cooler
WRT CERTIFICATION EXAM |ACTUAL
QUESTIONS WITH VERIFIED
SOLUTIONS 2026
There are 3 levels of biocidal activity, according to the Environmental Protection
Agency (EPA): - correct-answer -1. Sanitizer (reduces pathogens to a safe level)
2. Disinfectant (destroys microorganisms, but not spores)
3. Sterilizer (destroys microorganisms, including their spores)
Whenever a chemical antimicrobial or biocide is used, restorers must follow the
label __________ explicitly. - correct-answer -directions
,2|Page
Most antimicrobials require that the area of application be vacated by _________
and pets during application and for a period fo time after application. - correct-
answer -occupants
Establishing a ___ ________ is the best way to set restorative drying goals. A dry
standard is established by obtaining a moisture reading using an __________
material. - correct-answer -dry standard & unaffected
The numerical value form a moisture meter can be documented and used to
monitor progress. for this reason, the amount of moisture absorbed by semi-
porous structural materials is measured most accurately with a moisture _____,
not a moisture sensor. - correct-answer -meter
Because of their non-invasive nature and quick surveying capabilities, non-
invasive meters are the most effective tools for locating abnormal moisture
,3|Page
behind and beneath finishing materials such as _______ ____ and resilient _____
floor coverings. - correct-answer -ceramic tile & vinyl
A thermo-hygrometer is used to monitor any air that can influence the
___________ and/or ________ ________ with a restorative drying environment. -
correct-answer -temperature & relative humidity
To evaluate the progress of structural drying projects, restorers should measure:
1. moisture in __________ being dried (moisture content readings)
2. ___ being used to dry affected materials (psychrometric readings)
3. ___ produced by mechanical systems (dehumidifiers) - correct-answer -
materials, air, & air
Evaporation will increase when: - correct-answer -1. Wet materials are made
warmer.
, 4|Page
2. When drier air is used.
3. When air is moved more rapidly across the wet surface.
After excess water has been extracted, the time needed to dry wet materials is
determined by the ____ __ ___________. - correct-answer -rate of evaporation
As the water is rapidly evaporated, the water vapor is removed by
________________ or ___________. - correct-answer -dehumidification &
ventilation
___________ occurs when liquid changes to a vapor. Occurs as energy is
increased. - correct-answer -Evaporation
As moisture evaporates from a wet material, the surface of the material becomes
______ because energy is released from the material. - correct-answer -cooler
