IICRC WRT Comprehensive Exam Study Guide 2025
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Due to water migration, most drapery and upholstery that are in contact with moisture will
develop _____________ stains/rings over time. - Water
Remember that the water damage restoration is not complete until all materials are returned to
a _____ - ______ condition. - Pre-damage or former state
What are the three categories/colors of water sanitation? - Category 1, 2, and 3
Carpet ___________ is always replaced in Category "2" & "3" losses if wet. - Pads
The absorption process, in all hygroscopic materials, becomes more dramatic above _______%
RH. - 60%
As the humidity increases, hygroscopic materials take on more moisture i.e., water vapor, from
the air until they reach _______________ with the environment. - Equilibrium
What are the four classes of water damage? - 1, 2, 3, and 4
The Standard of Care for water damage restoration is _______________. - ANSI-S500
What are the two types of secondary damage? - Hygroscopic and Fungal/ Mold
Accurate written _____________ must begin when the first contact is made with the company. -
Records
The property owner, insured, or authorized agent, must sign a _________ _____________
before a restorer begins work. States who is financially responsible for payment of services. -
Work Authorization
A requirement for an insurance ______________ (deposit) should be clearly explained over the
phone before you respond. - Deductible
Restoration companies must provide a ____ hour phone response. - 24 hour
Third party evaluations of water losses may be considered when there are _________ health
issues; high _______ occupants in the structure; or when mold contamination is present. -
Public health issues and High Risk occupants
I.E.P. stands for: ____________ ________________ __________________. - Indoor
Enviornmental Profesional
, What is a tool, at our disposal, that illustrates what the damage was like upon arrival on the job
site? ____________________ - Camera/photographs
As moisture evaporates from a surface, the temperature of that surface becomes
____________. - Cooler
Dehumidification is the process of reducing the ____________ content of the air. -
Moisture
It is important for the technician to understand the relationship between temperature, airflow
and ________________. - Humidity
The changing of water into a vapor is called ________________. - Evaporation
When air can no longer have moisture put into it, the air is said to be _____________. -
Saturated
Which system uses mechanical dehumidification ___________________ - Closed drying
sytem
Which system intentionally uses outside drier air for dehumidification? _________________ -
Open drying system
A balanced drying is when the rate of dehumidification is equal to or greater than the rate of
___________________. - Evaporation
The higher the temperature and the lower the relative humidity, the faster the potential rate of
__________________. - Evaporation
High pressure goes to ________ pressure. - Low
Humidity or pressure always seeks ________________. - Equilibrium
What is the actual weight of water/moisture vapor in the air called? ___________ _________ -
Humidity ratio
The temperature at which air becomes saturated with moisture and condenses on cooler
surfaces is the ___________ __________ temperature. - Dew point
Humidity ratio is related to _________ _____________. - Vapor pressure
What is the degree or ability of water vapor (moisture) to pass through materials? _________ -
Permeance
| Pass Guaranteed | Verified Content
Due to water migration, most drapery and upholstery that are in contact with moisture will
develop _____________ stains/rings over time. - Water
Remember that the water damage restoration is not complete until all materials are returned to
a _____ - ______ condition. - Pre-damage or former state
What are the three categories/colors of water sanitation? - Category 1, 2, and 3
Carpet ___________ is always replaced in Category "2" & "3" losses if wet. - Pads
The absorption process, in all hygroscopic materials, becomes more dramatic above _______%
RH. - 60%
As the humidity increases, hygroscopic materials take on more moisture i.e., water vapor, from
the air until they reach _______________ with the environment. - Equilibrium
What are the four classes of water damage? - 1, 2, 3, and 4
The Standard of Care for water damage restoration is _______________. - ANSI-S500
What are the two types of secondary damage? - Hygroscopic and Fungal/ Mold
Accurate written _____________ must begin when the first contact is made with the company. -
Records
The property owner, insured, or authorized agent, must sign a _________ _____________
before a restorer begins work. States who is financially responsible for payment of services. -
Work Authorization
A requirement for an insurance ______________ (deposit) should be clearly explained over the
phone before you respond. - Deductible
Restoration companies must provide a ____ hour phone response. - 24 hour
Third party evaluations of water losses may be considered when there are _________ health
issues; high _______ occupants in the structure; or when mold contamination is present. -
Public health issues and High Risk occupants
I.E.P. stands for: ____________ ________________ __________________. - Indoor
Enviornmental Profesional
, What is a tool, at our disposal, that illustrates what the damage was like upon arrival on the job
site? ____________________ - Camera/photographs
As moisture evaporates from a surface, the temperature of that surface becomes
____________. - Cooler
Dehumidification is the process of reducing the ____________ content of the air. -
Moisture
It is important for the technician to understand the relationship between temperature, airflow
and ________________. - Humidity
The changing of water into a vapor is called ________________. - Evaporation
When air can no longer have moisture put into it, the air is said to be _____________. -
Saturated
Which system uses mechanical dehumidification ___________________ - Closed drying
sytem
Which system intentionally uses outside drier air for dehumidification? _________________ -
Open drying system
A balanced drying is when the rate of dehumidification is equal to or greater than the rate of
___________________. - Evaporation
The higher the temperature and the lower the relative humidity, the faster the potential rate of
__________________. - Evaporation
High pressure goes to ________ pressure. - Low
Humidity or pressure always seeks ________________. - Equilibrium
What is the actual weight of water/moisture vapor in the air called? ___________ _________ -
Humidity ratio
The temperature at which air becomes saturated with moisture and condenses on cooler
surfaces is the ___________ __________ temperature. - Dew point
Humidity ratio is related to _________ _____________. - Vapor pressure
What is the degree or ability of water vapor (moisture) to pass through materials? _________ -
Permeance
