AWWA Water Loss Control Certification
Exam Questions and Correct Answers
Verified Answers)latest update 2026
Q&A | Instant Download Pdf
Water - correct answer_______ 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.
Excessive moisture - correct answer______ also occurs in buildings b/c of
1)construction defects, 2) plumbing failures, 3) damage from freezing & 4) improper
maintenance.
Microorganisms/Microbes - correct answerWhen abnormal moisture is present,
_______ will rapidly multiply and cause structural deterioration, create odors &
potentially create serious health issues.
Abnormally wet - correct answerSingle most critical factor in defining amount of
potential damage is the amount of time the structure remains/was ______.
Respond quickly - correct answer#1 critical course of action in restorative drying is
to ______.
Restorative drying process - correct answer1) Assessment
2) Documentation
3) Controlled drying
4) Selective replacement
drying process - correct answerDue to the # of variables, restorer must frequently
revisit the
1) tools
2) systems
3) science throughout the ______
IICRC S500 - correct answerStandard of care for the water restoration profession
mold - correct answerAll ___ is fungi but not all fungi is ___.
,Goal of restorative process - correct answer______ is to transform an abnormally
wet, potentially damaged structure into an environment of equal or better appearance.
Assessment (1 of restorative drying process) - correct answer______ : Identify all
affected materials
Documentation (2 of restorative drying process) - correct answer_______ :
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 - correct answerCausing or able to cause disease
8 - correct answer1 Gallon = __.34 pounds (8 is always weight)
Disruptive - correct answerTwo drying methods:
1) ________ "d for demolition"
2) Aggressive
Disruptive - drying method - correct answera) more contaminated
b) more damaged
c) replacing is cheaper
Aggressive - drying method - correct answer"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) - correct answer1) Humidity
2) Air flow
3) Temperature
High - correct answerVapor pressure always goes from ____ to low.
Principles of Drying - correct answer1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs
,Safety hazards - correct answerThe technician's FIRST responsibility when arriving
at a water damage site is to identify and eliminate ________.
Safety Awareness - correct answerFirst line of defense against safety hazards is
_______. 2nd is to identify the presence of regulated building materials (asbestos, lead,
PCBs)
Hierarchy of Controls - correct answerElimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE)
PPE - correct answerLast line of defense is ____
Work Authorization Form - correct answerAn agreement between the building
owner and the restoration contractor. The form specifies who is responsible for payment
and the terms of payment
MIP - correct answermaterially interested parties
Moisture meter - correct answerA non-invasive (non-penetrating) _______ ___
tracks the migration of water below hard finish surfaces, such as under vinyl tile or
ceramic tile
- correct answerA invasive/ penetrating device to check moisture on carpet and
padding.
Warm - correct answer_____ air holds MORE moisture than cold air. Air is dryer in
winter.
Lowered - correct answerAs the air gets warmer, RELATIVE HUMIDITY is
_______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate.
Relative Humidity (RH) - correct answer____ 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 - correct answerwater 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 - correct answer1st indicator that it went from category 1 to 2 --> ___
Category 2 Water - correct answerWater 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 - correct answerWater 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 - correct answer
Category 1 - correct answerOriginates from a sanitary water source.
Category 2 - correct answerContaminated; may cause discomfort or sickness.
Category 3 - correct answerGrossly contaminated; includes toxins, pathogens.
Class 1 - correct answerLeast amount of water, absorption and evaporation load
(less than 5% porous materials wet compared to SF of wet walls, floors and ceilings).
Exam Questions and Correct Answers
Verified Answers)latest update 2026
Q&A | Instant Download Pdf
Water - correct answer_______ 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.
Excessive moisture - correct answer______ also occurs in buildings b/c of
1)construction defects, 2) plumbing failures, 3) damage from freezing & 4) improper
maintenance.
Microorganisms/Microbes - correct answerWhen abnormal moisture is present,
_______ will rapidly multiply and cause structural deterioration, create odors &
potentially create serious health issues.
Abnormally wet - correct answerSingle most critical factor in defining amount of
potential damage is the amount of time the structure remains/was ______.
Respond quickly - correct answer#1 critical course of action in restorative drying is
to ______.
Restorative drying process - correct answer1) Assessment
2) Documentation
3) Controlled drying
4) Selective replacement
drying process - correct answerDue to the # of variables, restorer must frequently
revisit the
1) tools
2) systems
3) science throughout the ______
IICRC S500 - correct answerStandard of care for the water restoration profession
mold - correct answerAll ___ is fungi but not all fungi is ___.
,Goal of restorative process - correct answer______ is to transform an abnormally
wet, potentially damaged structure into an environment of equal or better appearance.
Assessment (1 of restorative drying process) - correct answer______ : Identify all
affected materials
Documentation (2 of restorative drying process) - correct answer_______ :
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 - correct answerCausing or able to cause disease
8 - correct answer1 Gallon = __.34 pounds (8 is always weight)
Disruptive - correct answerTwo drying methods:
1) ________ "d for demolition"
2) Aggressive
Disruptive - drying method - correct answera) more contaminated
b) more damaged
c) replacing is cheaper
Aggressive - drying method - correct answer"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) - correct answer1) Humidity
2) Air flow
3) Temperature
High - correct answerVapor pressure always goes from ____ to low.
Principles of Drying - correct answer1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs
,Safety hazards - correct answerThe technician's FIRST responsibility when arriving
at a water damage site is to identify and eliminate ________.
Safety Awareness - correct answerFirst line of defense against safety hazards is
_______. 2nd is to identify the presence of regulated building materials (asbestos, lead,
PCBs)
Hierarchy of Controls - correct answerElimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE)
PPE - correct answerLast line of defense is ____
Work Authorization Form - correct answerAn agreement between the building
owner and the restoration contractor. The form specifies who is responsible for payment
and the terms of payment
MIP - correct answermaterially interested parties
Moisture meter - correct answerA non-invasive (non-penetrating) _______ ___
tracks the migration of water below hard finish surfaces, such as under vinyl tile or
ceramic tile
- correct answerA invasive/ penetrating device to check moisture on carpet and
padding.
Warm - correct answer_____ air holds MORE moisture than cold air. Air is dryer in
winter.
Lowered - correct answerAs the air gets warmer, RELATIVE HUMIDITY is
_______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate.
Relative Humidity (RH) - correct answer____ 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 - correct answerwater 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 - correct answer1st indicator that it went from category 1 to 2 --> ___
Category 2 Water - correct answerWater 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 - correct answerWater 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 - correct answer
Category 1 - correct answerOriginates from a sanitary water source.
Category 2 - correct answerContaminated; may cause discomfort or sickness.
Category 3 - correct answerGrossly contaminated; includes toxins, pathogens.
Class 1 - correct answerLeast amount of water, absorption and evaporation load
(less than 5% porous materials wet compared to SF of wet walls, floors and ceilings).
