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IIRC WRT CERTIFICATION EXAM 2024/2025 | ACCURATE CURRENTLY TESTING QUESTIONS AND VERIFIED ANSWERS WITH A STUDY GUIDE | EXPERT VERIFIED FOR GUARANTEED PASS | LATEST UPDATE
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IIRC WRT CERTIFICATION EXAM 2024/2025 | ACCURATE CURRENTLY TESTING QUESTIONS AND VERIFIED ANSWERS WITH A STUDY GUIDE | EXPERT VERIFIED FOR GUARANTEED PASS | LATEST UPDATE

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  • 19 augustus 2024
  • 38
  • 2024/2025
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Voorbeeld van de inhoud

IIRC WRT CERTIFICATION EXAM 2024/2025 | ACCURATE
CURRENTLY TESTING QUESTIONS AND VERIFIED
ANSWERS WITH A STUDY GUIDE | EXPERT VERIFIED FOR
GUARANTEED PASS | LATEST UPDATE
The numerical value from 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, noninvasive meters are
the most effective tools for locating abnormal moisture 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 _______________________ _______________________ within a restorative drying
environment. - CORRECT ANSWER Temperature
Relative Humidity


To evaluate the progress of structural drying projects, restorers should measure:
moisture in ____________ being dried (moisture content readings)
_____ being used to dry affected materials (psychrometric readings)
_____ produced by mechanical systems (dehumidifiers) - CORRECT ANSWER Mats


Air


Air


1. Evaporation will increase when:
______________________________________________________

,______________________________________________________
______________________________________________________ - CORRECT ANSWER
Wet materials are made warmer


When drier air is used


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


__________________ occurs when vapor changes to a liquid. Occurs as energy is removed. -
CORRECT ANSWER Condinsation


______________________ occurs when a solid changes to a vapor (without going through a
liquid phase). - CORRECT ANSWER Sublimation

,Freeze drying (sublimation) is typically used with valuable saturated books and documents.
Books and documents saturated with clean water may be restorable if: ________________ or
___________________ as quickly as possible. - CORRECT ANSWER Frozen
Dried


____________________ ______________________ is defined as the amount of moisture
contained in an air sample, as compared to the maximum amount the air could hold at that
temperature. - CORRECT ANSWER Relative Humidity


When the air temperature increases, it can hold _________________ water vapor. - CORRECT
ANSWER More


In the restorative drying industry the weight measurement used to measure water vapor in air is
grains per pound of air, abbreviated as GPP. This is called _______________ _______________.
- CORRECT ANSWER Humidity Ratio


Which of these surface temperatures would promote the most rapid evaporation?
a. 60°
b. 70°
c. 80° - CORRECT ANSWER c. 80°


If a material is not drying well, what would be the most effective method of increasing
evaporation?
a. Use air filtration
b. Warm the material
c. Add more airflow - CORRECT ANSWER b. Warm the material


One of the most effective methods of drying wet wood under hard surfaces is:
a. Heated airflow
b. Demolition of the wood
c. Negative air pressure - CORRECT ANSWER a. Heated airflow

, Use your Psychrometric Chart to complete the following calculations:
a. 80°F at 60% RH = _____________________ GPP


b. 53°F at 80% RH = _____________________ GPP


c. Which of the two conditions above has the lowest vapor pressure? ______


d. On a structural drying project, the indoor condition is 80°F and 60% RH. The temperature
needed to bring the relative humidity to 30% is ___________________________


e. What is the surface temperature at which condensation would become a risk for air which is
80°F at 60%? _______________________


f. What is the temperature in degrees Fahrenheit if the humidity ratio is 70 GPP, and the relative
humidity is 60%? _____________________ - CORRECT ANSWER About 92


About 48


B.


About 103°


65%


72%


___________________ is the temperature at which air becomes saturated with moisture and can
hold no more water vapor. - CORRECT ANSWER Dew Point

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