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IICRC - APPLIED STRUCTURAL
DRYING 2026 QUESTIONS AND
ANSWERS| ACE YOUR GRADES.
Using a negatively pressurized mat system is an effective way to
speed the drying o f hardwood floor assemblies with air between
finished floor and subfloor - correct answer -Hardwood Floor
Drying
the movement of energy from a warmer object to a cooler object -
correct answer -Heat Transfer
Low grain refrigerant dehu - uses the same technology as a
conventual refrigerant, but the air is pre-cooled before the cold
coils are pre warmed before the heat exchanger, heat pipe or
heat siphon, resulting in better efficiency as compared to a
conventional refrigerant dehu. LGR dehu continue to remove a
significant amount of water vapor below 40 GPP - correct answer
-LGR
Easily absorb and desorb (release) moisture. Usually, the first
materials to become damaged by abnormal water. Can be easily
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damaged from high humidity (secondary damage) - correct
answer -Hygroscopic Materials
A measure of the amount of moisture present in the structure of a
material. - correct answer -Moisture Content
The measurement of the amount of moisture contained in a
material on the relative scale. - correct answer -Moisture Level
The primary mechanisms through which moisture moves through
hygroscopic materials are capillary action and diffusion - correct
answer -Moisture Movement
If presumed asbestos containing materials or lead in materials are
discovered, you should stop activities that can potentially disturb
the hazardous materials. If asbestos is found or suspected,
removal shall be performed by a Licensed Asbestos abatement
contractor - correct answer -Regulated Materials
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the amount of water vapor present in air expressed as a
percentage of the amount needed for saturation at the same
temperature. - correct answer -Relative Humidity (RH)
the science of how energy changes.
Examples : Wet goes to dry, hot goes to cold, high pressure goes
to low pressure - correct answer -Thermodynamics
You are working on a class 2 water loss that has two affected
areas. Area 1 is 3750CF and Area 2 is 2700CF
You plan to dry both areas together using an LGR Dehu rated at
80 ppd at AHAM. How many of these dehus do you need to install
on this project. - correct answer -2 LGR dehumidifiers
When you are calculating equipment do you
A. Use the exact number
B. Always Round down
C. Always round up - doesn't matter the decimal amount - correct
answer -C. Always round up - doesn't matter the decimal amount
IICRC - APPLIED STRUCTURAL
DRYING 2026 QUESTIONS AND
ANSWERS| ACE YOUR GRADES.
Using a negatively pressurized mat system is an effective way to
speed the drying o f hardwood floor assemblies with air between
finished floor and subfloor - correct answer -Hardwood Floor
Drying
the movement of energy from a warmer object to a cooler object -
correct answer -Heat Transfer
Low grain refrigerant dehu - uses the same technology as a
conventual refrigerant, but the air is pre-cooled before the cold
coils are pre warmed before the heat exchanger, heat pipe or
heat siphon, resulting in better efficiency as compared to a
conventional refrigerant dehu. LGR dehu continue to remove a
significant amount of water vapor below 40 GPP - correct answer
-LGR
Easily absorb and desorb (release) moisture. Usually, the first
materials to become damaged by abnormal water. Can be easily
, Page | 2
damaged from high humidity (secondary damage) - correct
answer -Hygroscopic Materials
A measure of the amount of moisture present in the structure of a
material. - correct answer -Moisture Content
The measurement of the amount of moisture contained in a
material on the relative scale. - correct answer -Moisture Level
The primary mechanisms through which moisture moves through
hygroscopic materials are capillary action and diffusion - correct
answer -Moisture Movement
If presumed asbestos containing materials or lead in materials are
discovered, you should stop activities that can potentially disturb
the hazardous materials. If asbestos is found or suspected,
removal shall be performed by a Licensed Asbestos abatement
contractor - correct answer -Regulated Materials
, Page | 3
the amount of water vapor present in air expressed as a
percentage of the amount needed for saturation at the same
temperature. - correct answer -Relative Humidity (RH)
the science of how energy changes.
Examples : Wet goes to dry, hot goes to cold, high pressure goes
to low pressure - correct answer -Thermodynamics
You are working on a class 2 water loss that has two affected
areas. Area 1 is 3750CF and Area 2 is 2700CF
You plan to dry both areas together using an LGR Dehu rated at
80 ppd at AHAM. How many of these dehus do you need to install
on this project. - correct answer -2 LGR dehumidifiers
When you are calculating equipment do you
A. Use the exact number
B. Always Round down
C. Always round up - doesn't matter the decimal amount - correct
answer -C. Always round up - doesn't matter the decimal amount
