, IICRC WRT (Water Damage Restoration
Technician) Certification Exam
Questions and Answers | 100% Pass |
Grades A+| Guaranteed Success
Because of their non-invasive nature and quick surveying
capabilities, non-invasive meters are the most effective
tools for locating abnormal moisture behind and beneath
finishing materials such as _______ ____ and resilient _____
floor coverings. - Answer>> ceramic tile & vinyl
A thermo-hygrometer is used to monitor any air that can
influence the ___________ and/or ________ ________ with a
restorative drying environment. - Answer>> temperature
& relative humidity
To evaluate the progress of structural drying projects,
restorers should measure:
1. moisture in __________ being dried (moisture content
readings)
2. ___ being used to dry affected materials (psychrometric
readings)
3. ___ produced by mechanical systems (dehumidifiers) -
Answer>> materials, air, & air
Evaporation will increase when: - Answer>> 1. Wet
materials are made warmer.
2. When drier air is used.
3. 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 ____ __
___________. - Answer>> rate of evaporation
As the water is rapidly evaporated, the water vapor is
removed by ________________ or ___________. - Answer>>
dehumidification & ventilation
___________ occurs when liquid changes to a vapor. Occurs
as energy is increased. - Answer>> Evaporation
As moisture evaporates from a wet material, the surface
of the material becomes ______ because energy is
released from the material. - Answer>> cooler
____________ occurs when vapor changes to a liquid.
Occurs as every is removed. - Answer>> Condensation
___________ occurs when a solid changes to a vapor
(without going through a liquid phase.) - 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. - 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. -
Answer>> Relative humidity (RH)
When the air temperature increases, it can hold ____
water vapor. - 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
________ _____. - Answer>> humidity ration
Which of these surface temperatures would promote the
most rapid evaporation?
A. 60 degrees
B. 70 degrees
C. 80 degrees - Answer>> C. 80 degrees
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 - 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 - Answer>> A. Heated airflow
___ _____ is the temperature at which air becomes
saturated with moisture and can hold no more water
vapor. - Answer>> Dew point
When air is cooled, its capacity for water vapor is
reduced. Eventually, if temperature is cooled enough, the
relative humidity will reach ___% or saturation. When this
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