IICRC WATER DAMAGE
RESTORATION (WRT)
CERTIFICATION ,TECHNICIAN ,
TRAINING MANUAL EXAM
_______ has strong bonding properties and the ability to dissolve materials. Only
natural substance that's found in 3 states (liquid, solid (ice), gas (vapor)) at temps norm.
found in earth. -ANSWER✅✅✅✅Water
______ also occurs in buildings b/c of 1)construction defects, 2) plumbing failures, 3)
damage from freezing & 4) improper maintenance. -ANSWER✅✅✅✅Excessive
moisture
When abnormal moisture is present, _______ will rapidly multiply and cause structural
deterioration, create odors & potentially create serious health issues. -
ANSWER✅✅✅✅Microorganisms/Microbes
Single most critical factor in defining amount of potential damage is the amount of time
the structure remains/was ______. -ANSWER✅✅✅✅Abnormally wet
#1 critical course of action in restorative drying is to ______. -
ANSWER✅✅✅✅Respond quickly
1) Assessment
2) Documentation
3) Controlled drying
4) Selective replacement -ANSWER✅✅✅✅Restorative drying process
Due to the # of variables, restorer must frequently revisit the
1) tools
2) systems
3) science throughout the ______ -ANSWER✅✅✅✅drying process
Standard of care for the water restoration profession -ANSWER✅✅✅✅IICRC S500
All ___ is fungi but not all fungi is ___. -ANSWER✅✅✅✅mold
,______ is to transform an abnormally wet, potentially damaged structure into an
environment of equal or better appearance. -ANSWER✅✅✅✅Goal of restorative
process
______ : Identify all affected materials -ANSWER✅✅✅✅Assessment (1 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 -ANSWER✅✅✅✅Documentation (2 of
restorative drying process)
Causing or able to cause disease -ANSWER✅✅✅✅pathogenic
1 Gallon = __.34 pounds (8 is always weight) -ANSWER✅✅✅✅8
Two drying methods:
1) ________ "d for demolition"
2) Aggressive -ANSWER✅✅✅✅Disruptive
a) more contaminated
b) more damaged
c) replacing is cheaper -ANSWER✅✅✅✅Disruptive - 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 -ANSWER✅✅✅✅Aggressive - drying method
1) Humidity
2) Air flow
3) Temperature -ANSWER✅✅✅✅Drying Pie (3)
Vapor pressure always goes from ____ to low. -ANSWER✅✅✅✅High
1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs -ANSWER✅✅✅✅Principles of Drying
,The technician's FIRST responsibility when arriving at a water damage site is to identify
and eliminate ________. -ANSWER✅✅✅✅Safety hazards
First line of defense against safety hazards is _______. 2nd is to identify the presence
of regulated building materials (asbestos, lead, PCBs) -ANSWER✅✅✅✅Safety
Awareness
Elimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE) -ANSWER✅✅✅✅Hierarchy of Controls
Last line of defense is ____ -ANSWER✅✅✅✅PPE
An agreement between the building owner and the restoration contractor. The form
specifies who is responsible for payment and the terms of payment -
ANSWER✅✅✅✅Work Authorization Form
materially interested parties -ANSWER✅✅✅✅MIP
A non-invasive (non-penetrating) _______ ___ tracks the migration of water below hard
finish surfaces, such as under vinyl tile or ceramic tile -ANSWER✅✅✅✅Moisture
meter
A invasive/ penetrating device to check moisture on carpet and padding. -
ANSWER✅✅✅✅
_____ air holds MORE moisture than cold air. Air is dryer in winter. -
ANSWER✅✅✅✅Warm
As the air gets warmer, RELATIVE HUMIDITY is _______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate. -
ANSWER✅✅✅✅Lowered
____ 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. -ANSWER✅✅✅✅Relative
Humidity (RH)
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 -ANSWER✅✅✅✅Category 1
Water
1st indicator that it went from category 1 to 2 --> ___ -ANSWER✅✅✅✅odor
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. -ANSWER✅✅✅✅Category 2 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. -
ANSWER✅✅✅✅Category 3 Water
-ANSWER✅✅✅✅Special Situations
Originates from a sanitary water source. -ANSWER✅✅✅✅Category 1
Contaminated; may cause discomfort or sickness. -ANSWER✅✅✅✅Category 2
Grossly contaminated; includes toxins, pathogens. -ANSWER✅✅✅✅Category 3
Least amount of water, absorption and evaporation load (less than 5% porous materials
wet compared to SF of wet walls, floors and ceilings). -ANSWER✅✅✅✅Class 1
Large amount of water, absorption and evaporation load (5%-40% porous materials wet
compared to SF of wet walls, floors and ceilings). -ANSWER✅✅✅✅Class 2
RESTORATION (WRT)
CERTIFICATION ,TECHNICIAN ,
TRAINING MANUAL EXAM
_______ has strong bonding properties and the ability to dissolve materials. Only
natural substance that's found in 3 states (liquid, solid (ice), gas (vapor)) at temps norm.
found in earth. -ANSWER✅✅✅✅Water
______ also occurs in buildings b/c of 1)construction defects, 2) plumbing failures, 3)
damage from freezing & 4) improper maintenance. -ANSWER✅✅✅✅Excessive
moisture
When abnormal moisture is present, _______ will rapidly multiply and cause structural
deterioration, create odors & potentially create serious health issues. -
ANSWER✅✅✅✅Microorganisms/Microbes
Single most critical factor in defining amount of potential damage is the amount of time
the structure remains/was ______. -ANSWER✅✅✅✅Abnormally wet
#1 critical course of action in restorative drying is to ______. -
ANSWER✅✅✅✅Respond quickly
1) Assessment
2) Documentation
3) Controlled drying
4) Selective replacement -ANSWER✅✅✅✅Restorative drying process
Due to the # of variables, restorer must frequently revisit the
1) tools
2) systems
3) science throughout the ______ -ANSWER✅✅✅✅drying process
Standard of care for the water restoration profession -ANSWER✅✅✅✅IICRC S500
All ___ is fungi but not all fungi is ___. -ANSWER✅✅✅✅mold
,______ is to transform an abnormally wet, potentially damaged structure into an
environment of equal or better appearance. -ANSWER✅✅✅✅Goal of restorative
process
______ : Identify all affected materials -ANSWER✅✅✅✅Assessment (1 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 -ANSWER✅✅✅✅Documentation (2 of
restorative drying process)
Causing or able to cause disease -ANSWER✅✅✅✅pathogenic
1 Gallon = __.34 pounds (8 is always weight) -ANSWER✅✅✅✅8
Two drying methods:
1) ________ "d for demolition"
2) Aggressive -ANSWER✅✅✅✅Disruptive
a) more contaminated
b) more damaged
c) replacing is cheaper -ANSWER✅✅✅✅Disruptive - 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 -ANSWER✅✅✅✅Aggressive - drying method
1) Humidity
2) Air flow
3) Temperature -ANSWER✅✅✅✅Drying Pie (3)
Vapor pressure always goes from ____ to low. -ANSWER✅✅✅✅High
1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs -ANSWER✅✅✅✅Principles of Drying
,The technician's FIRST responsibility when arriving at a water damage site is to identify
and eliminate ________. -ANSWER✅✅✅✅Safety hazards
First line of defense against safety hazards is _______. 2nd is to identify the presence
of regulated building materials (asbestos, lead, PCBs) -ANSWER✅✅✅✅Safety
Awareness
Elimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE) -ANSWER✅✅✅✅Hierarchy of Controls
Last line of defense is ____ -ANSWER✅✅✅✅PPE
An agreement between the building owner and the restoration contractor. The form
specifies who is responsible for payment and the terms of payment -
ANSWER✅✅✅✅Work Authorization Form
materially interested parties -ANSWER✅✅✅✅MIP
A non-invasive (non-penetrating) _______ ___ tracks the migration of water below hard
finish surfaces, such as under vinyl tile or ceramic tile -ANSWER✅✅✅✅Moisture
meter
A invasive/ penetrating device to check moisture on carpet and padding. -
ANSWER✅✅✅✅
_____ air holds MORE moisture than cold air. Air is dryer in winter. -
ANSWER✅✅✅✅Warm
As the air gets warmer, RELATIVE HUMIDITY is _______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate. -
ANSWER✅✅✅✅Lowered
____ 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. -ANSWER✅✅✅✅Relative
Humidity (RH)
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 -ANSWER✅✅✅✅Category 1
Water
1st indicator that it went from category 1 to 2 --> ___ -ANSWER✅✅✅✅odor
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. -ANSWER✅✅✅✅Category 2 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. -
ANSWER✅✅✅✅Category 3 Water
-ANSWER✅✅✅✅Special Situations
Originates from a sanitary water source. -ANSWER✅✅✅✅Category 1
Contaminated; may cause discomfort or sickness. -ANSWER✅✅✅✅Category 2
Grossly contaminated; includes toxins, pathogens. -ANSWER✅✅✅✅Category 3
Least amount of water, absorption and evaporation load (less than 5% porous materials
wet compared to SF of wet walls, floors and ceilings). -ANSWER✅✅✅✅Class 1
Large amount of water, absorption and evaporation load (5%-40% porous materials wet
compared to SF of wet walls, floors and ceilings). -ANSWER✅✅✅✅Class 2
