IICRC WRT Exam UPDATED Study
Guide QUESTIONS AND CORRECT
ANSWERS
Moisture levels of ______% will support destructive wood (rot) decaying fungi
to grow on wood surfaces. - CORRECT ANSWERS 20%
relative humidity - CORRECT ANSWERS Is the ratio of the moisture
suspended in air expressed as a percentage of total moisture holding capaciry of
that air at a given temperature.
ACM - CORRECT ANSWERS Asbestos Containing Material
Daily Humidity Record - CORRECT ANSWERS Occurring at least
every 12-24 hours the recording the relative humidity and temperature to
determine Grains Per Pound (GPP).
Areas not directly wet will experience humidity elevation. Therefore... -
CORRECT ANSWERS Technicians must isolate affected areas from
non affected areas to gain best control of humidity.
Vapor Pressure will always - CORRECT ANSWERS ...seek a level of
equilibrium within a confined space.
How many grains are in a pound of air? - CORRECT ANSWERS 7000
Humidity ratio/specific humidity - CORRECT ANSWERS The amount
of water in the air (by weight) contained in the parcel of air.
, What is the goal for day 2 drying? - CORRECT ANSWERS To get the
humidity under 70 to ensure mitigation.
Dew point is also known as ___. - CORRECT ANSWERS saturation
temperature or condensation
The Dew Point - CORRECT ANSWERS the temperature at which the
air becomes saturated with water vapor (100%RH) and condenses on the cooler
surfaces.
Where does condensation moisture cause mold? - CORRECT ANSWERS
Mold growth can occur in cold spots of homes and buildings where
warm indoor air encounters cold outside air or vice versa.
Fog - CORRECT ANSWERS When the air meets the dew point
temperature.
Dew - CORRECT ANSWERS The temperature at which condensation
overwhelms evaporation.
Why might condensation be bad? - CORRECT ANSWERS
Condensation with a bio film (an organic film like soap or glue) present allows
mold to grow in a variety of surfaces from plastic to glass.
Biofilm - CORRECT ANSWERS Any organic substrate and bacteria
that tends to encourage mold growth.
Why are Thermal Cameras Important? - CORRECT ANSWERS
Thermal cameras, along with other sensors can detect the moisture perimeter of
wet carpet and cushion.
Guide QUESTIONS AND CORRECT
ANSWERS
Moisture levels of ______% will support destructive wood (rot) decaying fungi
to grow on wood surfaces. - CORRECT ANSWERS 20%
relative humidity - CORRECT ANSWERS Is the ratio of the moisture
suspended in air expressed as a percentage of total moisture holding capaciry of
that air at a given temperature.
ACM - CORRECT ANSWERS Asbestos Containing Material
Daily Humidity Record - CORRECT ANSWERS Occurring at least
every 12-24 hours the recording the relative humidity and temperature to
determine Grains Per Pound (GPP).
Areas not directly wet will experience humidity elevation. Therefore... -
CORRECT ANSWERS Technicians must isolate affected areas from
non affected areas to gain best control of humidity.
Vapor Pressure will always - CORRECT ANSWERS ...seek a level of
equilibrium within a confined space.
How many grains are in a pound of air? - CORRECT ANSWERS 7000
Humidity ratio/specific humidity - CORRECT ANSWERS The amount
of water in the air (by weight) contained in the parcel of air.
, What is the goal for day 2 drying? - CORRECT ANSWERS To get the
humidity under 70 to ensure mitigation.
Dew point is also known as ___. - CORRECT ANSWERS saturation
temperature or condensation
The Dew Point - CORRECT ANSWERS the temperature at which the
air becomes saturated with water vapor (100%RH) and condenses on the cooler
surfaces.
Where does condensation moisture cause mold? - CORRECT ANSWERS
Mold growth can occur in cold spots of homes and buildings where
warm indoor air encounters cold outside air or vice versa.
Fog - CORRECT ANSWERS When the air meets the dew point
temperature.
Dew - CORRECT ANSWERS The temperature at which condensation
overwhelms evaporation.
Why might condensation be bad? - CORRECT ANSWERS
Condensation with a bio film (an organic film like soap or glue) present allows
mold to grow in a variety of surfaces from plastic to glass.
Biofilm - CORRECT ANSWERS Any organic substrate and bacteria
that tends to encourage mold growth.
Why are Thermal Cameras Important? - CORRECT ANSWERS
Thermal cameras, along with other sensors can detect the moisture perimeter of
wet carpet and cushion.
