IICRC WRT Water Restoration Technician
Real Exam Questions | 100% Correct
Answers | Study Pack | A+ Verified
• Microorganisms/Microbes -✓✓When abnormal moisture is present, _______ will
rapidly multiply and cause structural deterioration, create odors & potentially create
serious health issues.
• Abnormally wet -✓✓Single most critical factor in defining amount of potential damage
is the amount of time the structure remains/was ______.
• Respond quickly -✓✓#1 critical course of action in restorative drying is to ______.
• Restorative drying process -✓✓1) Assessment
2) Documentation
3) Controlled drying
4) Selective replacement
• drying process -✓✓Due to the # of variables, restorer must frequently revisit the
1) tools
2) systems
3) science throughout the ______
• IICRC S500 -✓✓Standard of care for the water restoration profession
• mold -✓✓All ___ is fungi but not all fungi is ___.
• Goal of restorative process -✓✓______ is to transform an abnormally wet, potentially
damaged structure into an environment of equal or better appearance.
• Assessment (1 of restorative drying process) -✓✓______ : Identify all affected
materials
• Documentation (2 of restorative drying process) -✓✓_______ : Documents what types
of materials have been affected. Must evaluate materials against 3 criteria to identify if
should be replaced or restored.
1) degree of containment
2) damage to item
3) replacement cost versus restoration cost
• pathogenic -✓✓Causing or able to cause disease
,• 8 -✓✓1 Gallon = __.34 pounds (8 is always weight)
• Disruptive -✓✓Two drying methods:
1) ________ "d for demolition"
2) Aggressive
• Disruptive - drying method -✓✓a) more contaminated
b) more damaged
c) replacing is cheaper
• Aggressive - drying method -✓✓"DRYING IN PLACE" / little to no manipulation
a) less contaminated
b) less damaged
c) replacing is COSTLY
d) can ONLY be used w/ category 1
• Drying Pie (3) -✓✓1) Humidity
2) Air flow
3) Temperature
• High -✓✓Vapor pressure always goes from ____ to low.
• Principles of Drying -✓✓1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs
• Safety hazards -✓✓The technician's FIRST responsibility when arriving at a water
damage site is to identify and eliminate ________.
• Safety Awareness -✓✓First line of defense against safety hazards is _______. 2nd is
to identify the presence of regulated building materials (asbestos, lead, PCBs)
• Hierarchy of Controls -✓✓Elimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE)
• PPE -✓✓Last line of defense is ____
• Work Authorization Form -✓✓An agreement between the building owner and the
restoration contractor. The form specifies who is responsible for payment and the terms
of payment
,• MIP -✓✓materially interested parties
• Moisture meter -✓✓A non-invasive (non-penetrating) _______ ___ tracks the
migration of water below hard finish surfaces, such as under vinyl tile or ceramic tile
• -✓✓A invasive/ penetrating device to check moisture on carpet and padding.
• Warm -✓✓_____ air holds MORE moisture than cold air. Air is dryer in winter.
• Lowered -✓✓As the air gets warmer, RELATIVE HUMIDITY is _______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate.
• Relative Humidity (RH) -✓✓____ is the amount of moisture in the air compared to
what the air can hold at that temperature.
RH is the amount of water vapor (individual water molecules) in a given parcel of air
RELATIVE to the # of water molecules that could be in that particular parcel of air..
without it reaching dew point (
Air is 78% nitrogen molecules, oxygen and others. Molecules aren't interacting w/
eachother. Space between them. We can put WATER MOLECULES in that space.
RH = how many water molecules we are putting in the spaces between the air
molecules.
As air is heated --> molecules move faster --> spread further apart ---> VOLUME
INCREASES. More space for more water molecules.
• Category 1 Water -✓✓water that originates from a sanatary water source and does
not pose substantial risk.
Examples broken water lines, tub or sink overflows with no contaminants, appliance
malfunctions involving water supply lines, rainwater
• odor -✓✓1st indicator that it went from category 1 to 2 --> ___
• Category 2 Water -✓✓Water that has a significant degree of chemical, biological
and/or physical containment.
Aquarium leaks, waterbed leaks, toilet bowl overflows (that contain urine), dishwasher
or clothes washer discharge, and water that enters the structure from hydrostatic
pressure.
, Has the potential to cause sickness or discomfort and should NOT be allowed to dwell
in a structure for an extended period of time.
• Category 3 Water -✓✓Water that contains grossly contaminated water and can cause
harmful reactions to humans. Carries PATHOGENIC AGENTS
examples sewage, all forms of flooding seawater, water from river, etc.
• Special Situations -✓✓
• Category 1 -✓✓Originates from a sanitary water source.
• Category 2 -✓✓Contaminated; may cause discomfort or sickness.
• Category 3 -✓✓Grossly contaminated; includes toxins, pathogens.
• Class 1 -✓✓Least amount of water, absorption and evaporation load (less than 5%
porous materials wet compared to SF of wet walls, floors and ceilings).
• Class 2 -✓✓Large amount of water, absorption and evaporation load (5%-40% porous
materials wet compared to SF of wet walls, floors and ceilings).
• Class 3 -✓✓Greatest amount of water, absorption and evaporation load (over 40%
porous materials wet compared to SF of wet walls, floors and ceilings).
• Class 4 -✓✓Specialty drying - (hardwood; plaster; concrete) - deep pockets of
saturation.
• Principles of Drying -✓✓Remove excess / evaporation / dehumidification (ventilation) /
temperature control.
• Light wand -✓✓Perimeter of water loss; extract glue-down carpets; follow-up
extraction-stationary tool.
• Stationary tool -✓✓e.g., Water claw; Flash Xtractor - subsurface tool; extract carpet
and cushion.
• Self-propelled tools -✓✓e.g., Rover; Xtreme Xtractor - self-propelled riding tool; multi-
speed; extract carpet and cushion.
• Vacuum squeegee -✓✓Used for concrete; hardwood; vinyl; laminate.
• Submersion pumps -✓✓Formula - (ft2 x inches deep) ÷ 12" = ft3 water x 7.48 = water
volume.
Real Exam Questions | 100% Correct
Answers | Study Pack | A+ Verified
• Microorganisms/Microbes -✓✓When abnormal moisture is present, _______ will
rapidly multiply and cause structural deterioration, create odors & potentially create
serious health issues.
• Abnormally wet -✓✓Single most critical factor in defining amount of potential damage
is the amount of time the structure remains/was ______.
• Respond quickly -✓✓#1 critical course of action in restorative drying is to ______.
• Restorative drying process -✓✓1) Assessment
2) Documentation
3) Controlled drying
4) Selective replacement
• drying process -✓✓Due to the # of variables, restorer must frequently revisit the
1) tools
2) systems
3) science throughout the ______
• IICRC S500 -✓✓Standard of care for the water restoration profession
• mold -✓✓All ___ is fungi but not all fungi is ___.
• Goal of restorative process -✓✓______ is to transform an abnormally wet, potentially
damaged structure into an environment of equal or better appearance.
• Assessment (1 of restorative drying process) -✓✓______ : Identify all affected
materials
• Documentation (2 of restorative drying process) -✓✓_______ : Documents what types
of materials have been affected. Must evaluate materials against 3 criteria to identify if
should be replaced or restored.
1) degree of containment
2) damage to item
3) replacement cost versus restoration cost
• pathogenic -✓✓Causing or able to cause disease
,• 8 -✓✓1 Gallon = __.34 pounds (8 is always weight)
• Disruptive -✓✓Two drying methods:
1) ________ "d for demolition"
2) Aggressive
• Disruptive - drying method -✓✓a) more contaminated
b) more damaged
c) replacing is cheaper
• Aggressive - drying method -✓✓"DRYING IN PLACE" / little to no manipulation
a) less contaminated
b) less damaged
c) replacing is COSTLY
d) can ONLY be used w/ category 1
• Drying Pie (3) -✓✓1) Humidity
2) Air flow
3) Temperature
• High -✓✓Vapor pressure always goes from ____ to low.
• Principles of Drying -✓✓1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs
• Safety hazards -✓✓The technician's FIRST responsibility when arriving at a water
damage site is to identify and eliminate ________.
• Safety Awareness -✓✓First line of defense against safety hazards is _______. 2nd is
to identify the presence of regulated building materials (asbestos, lead, PCBs)
• Hierarchy of Controls -✓✓Elimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE)
• PPE -✓✓Last line of defense is ____
• Work Authorization Form -✓✓An agreement between the building owner and the
restoration contractor. The form specifies who is responsible for payment and the terms
of payment
,• MIP -✓✓materially interested parties
• Moisture meter -✓✓A non-invasive (non-penetrating) _______ ___ tracks the
migration of water below hard finish surfaces, such as under vinyl tile or ceramic tile
• -✓✓A invasive/ penetrating device to check moisture on carpet and padding.
• Warm -✓✓_____ air holds MORE moisture than cold air. Air is dryer in winter.
• Lowered -✓✓As the air gets warmer, RELATIVE HUMIDITY is _______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate.
• Relative Humidity (RH) -✓✓____ is the amount of moisture in the air compared to
what the air can hold at that temperature.
RH is the amount of water vapor (individual water molecules) in a given parcel of air
RELATIVE to the # of water molecules that could be in that particular parcel of air..
without it reaching dew point (
Air is 78% nitrogen molecules, oxygen and others. Molecules aren't interacting w/
eachother. Space between them. We can put WATER MOLECULES in that space.
RH = how many water molecules we are putting in the spaces between the air
molecules.
As air is heated --> molecules move faster --> spread further apart ---> VOLUME
INCREASES. More space for more water molecules.
• Category 1 Water -✓✓water that originates from a sanatary water source and does
not pose substantial risk.
Examples broken water lines, tub or sink overflows with no contaminants, appliance
malfunctions involving water supply lines, rainwater
• odor -✓✓1st indicator that it went from category 1 to 2 --> ___
• Category 2 Water -✓✓Water that has a significant degree of chemical, biological
and/or physical containment.
Aquarium leaks, waterbed leaks, toilet bowl overflows (that contain urine), dishwasher
or clothes washer discharge, and water that enters the structure from hydrostatic
pressure.
, Has the potential to cause sickness or discomfort and should NOT be allowed to dwell
in a structure for an extended period of time.
• Category 3 Water -✓✓Water that contains grossly contaminated water and can cause
harmful reactions to humans. Carries PATHOGENIC AGENTS
examples sewage, all forms of flooding seawater, water from river, etc.
• Special Situations -✓✓
• Category 1 -✓✓Originates from a sanitary water source.
• Category 2 -✓✓Contaminated; may cause discomfort or sickness.
• Category 3 -✓✓Grossly contaminated; includes toxins, pathogens.
• Class 1 -✓✓Least amount of water, absorption and evaporation load (less than 5%
porous materials wet compared to SF of wet walls, floors and ceilings).
• Class 2 -✓✓Large amount of water, absorption and evaporation load (5%-40% porous
materials wet compared to SF of wet walls, floors and ceilings).
• Class 3 -✓✓Greatest amount of water, absorption and evaporation load (over 40%
porous materials wet compared to SF of wet walls, floors and ceilings).
• Class 4 -✓✓Specialty drying - (hardwood; plaster; concrete) - deep pockets of
saturation.
• Principles of Drying -✓✓Remove excess / evaporation / dehumidification (ventilation) /
temperature control.
• Light wand -✓✓Perimeter of water loss; extract glue-down carpets; follow-up
extraction-stationary tool.
• Stationary tool -✓✓e.g., Water claw; Flash Xtractor - subsurface tool; extract carpet
and cushion.
• Self-propelled tools -✓✓e.g., Rover; Xtreme Xtractor - self-propelled riding tool; multi-
speed; extract carpet and cushion.
• Vacuum squeegee -✓✓Used for concrete; hardwood; vinyl; laminate.
• Submersion pumps -✓✓Formula - (ft2 x inches deep) ÷ 12" = ft3 water x 7.48 = water
volume.
