IICRC WRT Exam Questions With 100% Correct Answers
2025
IICRC WRT Exam Questions With 100% Correct Answers
2025
Moisture levels of ______% will support destructive wood (rot) decaying fungi to grow on wood
surfaces. Answer ✔✔20%
relative humidity Answer ✔✔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 Answer ✔✔Asbestos Containing Material
Daily Humidity Record Answer ✔✔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... Answer ✔✔Technicians must
isolate affected areas from non affected areas to gain best control of humidity.
Vapor Pressure will always Answer ✔✔...seek a level of equilibrium within a confined space.
How many grains are in a pound of air? Answer ✔✔7000
Humidity ratio/specific humidity Answer ✔✔The amount of water in the air (by weight) contained in the
parcel of air.
What is the goal for day 2 drying? Answer ✔✔To get the humidity under 70 to ensure mitigation.
, IICRC WRT Exam Questions With 100% Correct Answers
2025
Dew point is also known as ___. Answer ✔✔saturation temperature or condensation
The Dew Point Answer ✔✔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? Answer ✔✔Mold growth can occur in cold spots of
homes and buildings where warm indoor air encounters cold outside air or vice versa.
Fog Answer ✔✔When the air meets the dew point temperature.
Dew Answer ✔✔The temperature at which condensation overwhelms evaporation.
Why might condensation be bad? Answer ✔✔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 Answer ✔✔Any organic substrate and bacteria that tends to encourage mold growth.
Why are Thermal Cameras Important? Answer ✔✔Thermal cameras, along with other sensors can
detect the moisture perimeter of wet carpet and cushion.
vapor pressure Answer ✔✔A gaseous force exerted by the water vapor on its environment.
When does evaporation occur? Answer ✔✔when vapor pressure of the ambient air (air in the room) is
lower that the vapor pressure of the wet material.
What else can increase evaporation? Answer ✔✔If the air has low Vapor Pressure (VP) and can be
heated the added thermal energy (heat) will also increase the rate of evaporation.
2025
IICRC WRT Exam Questions With 100% Correct Answers
2025
Moisture levels of ______% will support destructive wood (rot) decaying fungi to grow on wood
surfaces. Answer ✔✔20%
relative humidity Answer ✔✔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 Answer ✔✔Asbestos Containing Material
Daily Humidity Record Answer ✔✔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... Answer ✔✔Technicians must
isolate affected areas from non affected areas to gain best control of humidity.
Vapor Pressure will always Answer ✔✔...seek a level of equilibrium within a confined space.
How many grains are in a pound of air? Answer ✔✔7000
Humidity ratio/specific humidity Answer ✔✔The amount of water in the air (by weight) contained in the
parcel of air.
What is the goal for day 2 drying? Answer ✔✔To get the humidity under 70 to ensure mitigation.
, IICRC WRT Exam Questions With 100% Correct Answers
2025
Dew point is also known as ___. Answer ✔✔saturation temperature or condensation
The Dew Point Answer ✔✔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? Answer ✔✔Mold growth can occur in cold spots of
homes and buildings where warm indoor air encounters cold outside air or vice versa.
Fog Answer ✔✔When the air meets the dew point temperature.
Dew Answer ✔✔The temperature at which condensation overwhelms evaporation.
Why might condensation be bad? Answer ✔✔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 Answer ✔✔Any organic substrate and bacteria that tends to encourage mold growth.
Why are Thermal Cameras Important? Answer ✔✔Thermal cameras, along with other sensors can
detect the moisture perimeter of wet carpet and cushion.
vapor pressure Answer ✔✔A gaseous force exerted by the water vapor on its environment.
When does evaporation occur? Answer ✔✔when vapor pressure of the ambient air (air in the room) is
lower that the vapor pressure of the wet material.
What else can increase evaporation? Answer ✔✔If the air has low Vapor Pressure (VP) and can be
heated the added thermal energy (heat) will also increase the rate of evaporation.
