IICRC WRT Certification Exam
• Abide by local and regulations when disposing extracted water.Wastewater is
best disposed of into a sanitary sewer.: laws
• The primary goal of the initial extraction of the affected area is to containfurther of
the water within the structure.: migration
• Whenever carpet must be disengaged from the tackless strip, a
and carpet awl must be used.: knee kicker
• The majority of cushion has a skin or mesh on the top side. The purpose of this skin is to
ease during installation; it is not a vapor
barrier.: carpet stretching
• If the carpet is to be re-installed, technicians should avoid cutting carpetseams unless it is
absolutely .: necessary
• Every cubic foot of standing water present in a structure contains _. gallons (28.3
liters), and each gallon (3.8 liters) of water weighs 8.34 pounds(3.8 kg).: 7.48
• There are 3 levels of biocidal activity, according to the EnvironmentalProtection Agency
(EPA):: 1. Sanitizer (reduces pathogens to a safe level)
2. Disinfectant (destroys microorganisms, but not spores)
3. Sterilizer (destroys microorganisms, including their spores)
• Whenever a chemical antimicrobial or biocide is used, restorers mustfollow the label
explicitly.: directions
• Most antimicrobials require that the area of application be vacated by
and pets during application and for a period fo time after applica-tion.:
occupants
• Establishing a is the best way to set restorative drying goals. A dry standard is
established by obtaining a moisture reading usingan material.: dry standard &
unaffected
• The numerical value form a moisture meter can be documented and usedto 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.: meter
• Because of their non-invasive nature and quick surveying capabilities, non-invasive
meters are the most effective tools for locating abnormal mois-ture behind and beneath
finishing materials such as and
, re- silient floor coverings.: ceramic tile & vinyl
• A thermo-hygrometer is used to monitor any air that can influence the
and/or with a restorative drying environ-ment.:
temperature & relative humidity
• To evaluate the progress of structural drying projects, restorers shouldmeasure:
1. moisture in being dried (moisture content readings)
2. being used to dry affected materials (psychrometric readings)
3. produced by mechanical systems (dehumidifiers): materials, air, & air
Evaporation will increase when:: 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 materi-als is determined
by the .: rate of evaporation
• As the water is rapidly evaporated, the water vapor is removed by
or .: dehumidification & ventilation
• occurs when liquid changes to a vapor. Occurs as energy isincreased.:
Evaporation
• As moisture evaporates from a wet material, the surface of the materialbecomes
because energy is released from the material.: cooler
• occurs when vapor changes to a liquid. Occurs as every isremoved.:
Condensation
• occurs when a solid changes to a vapor (without goingthrough a liquid
phase.): Sublimation
• Freeze drying (sublimation) is typically used with valuable saturated booksand documents.
Books and documents saturated with clean water may be restorable if: or as quickly
as possible.: Frozen & dried
• is defined as the amount of moisture contained in anair
sample, as compared to the maximum amount the air could hold at that temperature.: Relative
humidity (RH)
• When the air temperature increases, it can hold water vapor.:
more
• In the restorative drying industry the weight measurement used to mea- sure water vapor
in air is grains per pound of air, abbreviated as GPP. This iscalled .: humidity ration
• Abide by local and regulations when disposing extracted water.Wastewater is
best disposed of into a sanitary sewer.: laws
• The primary goal of the initial extraction of the affected area is to containfurther of
the water within the structure.: migration
• Whenever carpet must be disengaged from the tackless strip, a
and carpet awl must be used.: knee kicker
• The majority of cushion has a skin or mesh on the top side. The purpose of this skin is to
ease during installation; it is not a vapor
barrier.: carpet stretching
• If the carpet is to be re-installed, technicians should avoid cutting carpetseams unless it is
absolutely .: necessary
• Every cubic foot of standing water present in a structure contains _. gallons (28.3
liters), and each gallon (3.8 liters) of water weighs 8.34 pounds(3.8 kg).: 7.48
• There are 3 levels of biocidal activity, according to the EnvironmentalProtection Agency
(EPA):: 1. Sanitizer (reduces pathogens to a safe level)
2. Disinfectant (destroys microorganisms, but not spores)
3. Sterilizer (destroys microorganisms, including their spores)
• Whenever a chemical antimicrobial or biocide is used, restorers mustfollow the label
explicitly.: directions
• Most antimicrobials require that the area of application be vacated by
and pets during application and for a period fo time after applica-tion.:
occupants
• Establishing a is the best way to set restorative drying goals. A dry standard is
established by obtaining a moisture reading usingan material.: dry standard &
unaffected
• The numerical value form a moisture meter can be documented and usedto 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.: meter
• Because of their non-invasive nature and quick surveying capabilities, non-invasive
meters are the most effective tools for locating abnormal mois-ture behind and beneath
finishing materials such as and
, re- silient floor coverings.: ceramic tile & vinyl
• A thermo-hygrometer is used to monitor any air that can influence the
and/or with a restorative drying environ-ment.:
temperature & relative humidity
• To evaluate the progress of structural drying projects, restorers shouldmeasure:
1. moisture in being dried (moisture content readings)
2. being used to dry affected materials (psychrometric readings)
3. produced by mechanical systems (dehumidifiers): materials, air, & air
Evaporation will increase when:: 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 materi-als is determined
by the .: rate of evaporation
• As the water is rapidly evaporated, the water vapor is removed by
or .: dehumidification & ventilation
• occurs when liquid changes to a vapor. Occurs as energy isincreased.:
Evaporation
• As moisture evaporates from a wet material, the surface of the materialbecomes
because energy is released from the material.: cooler
• occurs when vapor changes to a liquid. Occurs as every isremoved.:
Condensation
• occurs when a solid changes to a vapor (without goingthrough a liquid
phase.): Sublimation
• Freeze drying (sublimation) is typically used with valuable saturated booksand documents.
Books and documents saturated with clean water may be restorable if: or as quickly
as possible.: Frozen & dried
• is defined as the amount of moisture contained in anair
sample, as compared to the maximum amount the air could hold at that temperature.: Relative
humidity (RH)
• When the air temperature increases, it can hold water vapor.:
more
• In the restorative drying industry the weight measurement used to mea- sure water vapor
in air is grains per pound of air, abbreviated as GPP. This iscalled .: humidity ration
