IICRC Water Damage Restoration
Technician/Training (WRT) Certification
Exam Questions and Correct Answers |
Latest Update 2026/27
• Water has strong bonding properties and the ability to dissolve materials. It is the
only natural substance found in three states (liquid, solid/ice, and gas/vapor) at
temperatures normally found on Earth.
• Excessive moisture also occurs in buildings because of: 1) construction
defects, 2) plumbing failures, 3) damage from freezing, and 4) improper
maintenance.
• When abnormal moisture is present, microorganisms/microbes will rapidly
multiply and cause structural deterioration, create odors, and potentially create
serious health issues.
• The single most critical factor in defining the amount of potential damage is the
amount of time the structure remains or was abnormally wet.
• The number one critical course of action in restorative drying is to respond
quickly.
• The restorative drying process consists of four steps: 1) Assessment, 2)
Documentation, 3) Controlled drying, and 4) Selective replacement.
• Due to the number of variables, a restorer must frequently revisit the tools,
systems, and science throughout the drying process.
• The standard of care for the water restoration profession is the IICRC S500.
• All mold is fungi, but not all fungi is mold.
, • The goal of the restorative process is to transform an abnormally wet,
potentially damaged structure into an environment of equal or better appearance.
• Assessment (Step 1 of the restorative drying process) is the step where you
identify all affected materials.
• Documentation (Step 2 of the restorative drying process) involves recording
what types of materials have been affected. Materials must be evaluated against
three criteria to identify if they should be replaced or restored: 1) degree of
containment (or contamination), 2) damage to the item, and 3) replacement cost
versus restoration cost.
• Pathogenic means causing or able to cause disease.
• 1 Gallon of water weighs 8.34 pounds.
Two drying methods:
1) ________ "d for demolition"
2) Aggressive - ANSWERS Disruptive
a) more contaminated
b) more damaged
c) replacing is cheaper - ANSWERS 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 - ANSWERS Aggressive - drying method
,1) Humidity
2) Air flow
3) Temperature - ANSWERS Drying Pie (3)
Vapor pressure always goes from ____ to low. - ANSWERS High
1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs - ANSWERS Principles of Drying
The technician's FIRST responsibility when arriving at a water damage site is to
identify and eliminate ________. - ANSWERS Safety hazards
First line of defense against safety hazards is _______. 2nd is to identify the
presence of regulated building materials (asbestos, lead, PCBs) - ANSWERS
Safety Awareness
Elimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE) - ANSWERS Hierarchy of Controls
, Last line of defense is ____ - ANSWERS PPE
An agreement between the building owner and the restoration contractor. The
form specifies who is responsible for payment and the terms of payment -
ANSWERS Work Authorization Form
materially interested parties - ANSWERS MIP
A non-invasive (non-penetrating) _______ ___ tracks the migration of water
below hard finish surfaces, such as under vinyl tile or ceramic tile - ANSWERS
Moisture meter
A invasive/ penetrating device to check moisture on carpet and padding. -
ANSWERS
_____ air holds MORE moisture than cold air. Air is dryer in winter. - ANSWERS
Warm
As the air gets warmer, RELATIVE HUMIDITY is _______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate. -
ANSWERS Lowered
____ is the amount of moisture in the air compared to what the air can hold at
that temperature.
Technician/Training (WRT) Certification
Exam Questions and Correct Answers |
Latest Update 2026/27
• Water has strong bonding properties and the ability to dissolve materials. It is the
only natural substance found in three states (liquid, solid/ice, and gas/vapor) at
temperatures normally found on Earth.
• Excessive moisture also occurs in buildings because of: 1) construction
defects, 2) plumbing failures, 3) damage from freezing, and 4) improper
maintenance.
• When abnormal moisture is present, microorganisms/microbes will rapidly
multiply and cause structural deterioration, create odors, and potentially create
serious health issues.
• The single most critical factor in defining the amount of potential damage is the
amount of time the structure remains or was abnormally wet.
• The number one critical course of action in restorative drying is to respond
quickly.
• The restorative drying process consists of four steps: 1) Assessment, 2)
Documentation, 3) Controlled drying, and 4) Selective replacement.
• Due to the number of variables, a restorer must frequently revisit the tools,
systems, and science throughout the drying process.
• The standard of care for the water restoration profession is the IICRC S500.
• All mold is fungi, but not all fungi is mold.
, • The goal of the restorative process is to transform an abnormally wet,
potentially damaged structure into an environment of equal or better appearance.
• Assessment (Step 1 of the restorative drying process) is the step where you
identify all affected materials.
• Documentation (Step 2 of the restorative drying process) involves recording
what types of materials have been affected. Materials must be evaluated against
three criteria to identify if they should be replaced or restored: 1) degree of
containment (or contamination), 2) damage to the item, and 3) replacement cost
versus restoration cost.
• Pathogenic means causing or able to cause disease.
• 1 Gallon of water weighs 8.34 pounds.
Two drying methods:
1) ________ "d for demolition"
2) Aggressive - ANSWERS Disruptive
a) more contaminated
b) more damaged
c) replacing is cheaper - ANSWERS 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 - ANSWERS Aggressive - drying method
,1) Humidity
2) Air flow
3) Temperature - ANSWERS Drying Pie (3)
Vapor pressure always goes from ____ to low. - ANSWERS High
1) Safety/ Health
2) Document & Inspect
3) Mitigate Further Damage
4) Clean and Dry Affected Areas
5) Complete Restoration and Repairs - ANSWERS Principles of Drying
The technician's FIRST responsibility when arriving at a water damage site is to
identify and eliminate ________. - ANSWERS Safety hazards
First line of defense against safety hazards is _______. 2nd is to identify the
presence of regulated building materials (asbestos, lead, PCBs) - ANSWERS
Safety Awareness
Elimination
Substitution
Engineering Controls
Administrative Controls
PPE (LEAST EFFECTIVE) - ANSWERS Hierarchy of Controls
, Last line of defense is ____ - ANSWERS PPE
An agreement between the building owner and the restoration contractor. The
form specifies who is responsible for payment and the terms of payment -
ANSWERS Work Authorization Form
materially interested parties - ANSWERS MIP
A non-invasive (non-penetrating) _______ ___ tracks the migration of water
below hard finish surfaces, such as under vinyl tile or ceramic tile - ANSWERS
Moisture meter
A invasive/ penetrating device to check moisture on carpet and padding. -
ANSWERS
_____ air holds MORE moisture than cold air. Air is dryer in winter. - ANSWERS
Warm
As the air gets warmer, RELATIVE HUMIDITY is _______.
100% RH in cold climate is DRYER than 50% RH in a warmer climate. -
ANSWERS Lowered
____ is the amount of moisture in the air compared to what the air can hold at
that temperature.
