IICRC WRT TEST EXAM,
COMPLETE TEST || QUESTIONS
AND ANSWERS (VERIFIED
ANSWERS) (LATEST UPDATE
2026) UPDATE!!
What included;
Updated for the 2026 exam, reflecting current IICRC WRT
concepts, terminology, and industry standards.
Thorough coverage of IICRC S500 Standard principles,
restorative drying procedures, moisture mapping, psychrometry,
dehumidification, evaporation, and drying science.
Questions covering equipment selection and calculations,
including air movers, dehumidifiers, extraction methods, airflow
requirements, and drying system design.
Detailed review of Category 1, 2, and 3 water losses,
contamination levels, safety procedures, and restoration protocols.
,1.#1. During the inspection process, restorers shall make a reasonable effort to: C.
identify and address potential safety hazards
2.#2. A significant amount of water absorption and evaporation load where wet porous
materials represent ~5% to ~40% of combined ceiling, walls, and flooring surface areas
and where low evaporation materials and assemblies are minimally wet is: B. class 2
3.#3. Multiple extraction of salvageable materials, especially porous material
(e.g. Carpet , cushion) often are required to:: decrease drying time
4.#4. To enhance drying, restorers should manage both ambient temperature and:
surface temperatures of affected materials
5.#5. Water damage restoration services should not begin until after the:: restorer has
entered into an adequately written contract.
6.#6. Two tools that should be used to properly disengage most stretched-in carpet:
Knee kicker and carpet awl
7.#7. When inspecting a water damage structure, restorers should inspect:: all
potentially affected areas.
8.#8. Buckled or damaged particle board should: removed and replaced with new
material. 9. #9. upon entering a building, professional moisture detection equipment
should be used to evaluate and document:: applicable psychrometric conditions and
moisture content or level readings .
10. #10. When wet, a structural material that loses most of its structural integrity, but
regains its strength when dry, is:: Concrete
11. #11 Initially, a method of search for abnormal moisture behind ceramic tile or
resilient flooring can be accomplished by: using a non-penetrating (non-invasive)
moisture
meter
12. #12. To minimize damage and reduce drying time, reduce drying time, restorers
should:: begin mitigation as soon as safely possible
13. #13. The moisture content of structural materials should be measured with a: A.
moisture meter
14. #14. When accessible from below, to dry wet wood subflooring under stone or tile
flooring, restorers can use low-humidity air and: D. vapor barrier
,15 #15. Biocides designed to destroy or eliminate all forms of microbial life and their
spores are: D. sterilizers
16. #16. When carpet is wet it can be delaminated by: D. improper handling and
disengag-
ing
17. #17. To minimize or control aerosolized soils or contaminants during
restoration, restorers can:: B. install one or more air filtration devices (AFDs)
18. #18. When pre-existing damage is discovered, restorer should: D. document and
bring it to the attention of materially interested parties
19. #19. Rapid drying of structural materials is achieved by: A. promoting evaporation
and dehumidification or ventilation
20. #20. When carpet and cushion (pad, underlay) are saturated with Category
3 water: B. Both should be removed for proper disposal
21. #21. To minimize safety concerns and to speed structural drying, gypsum board
(drywall) ceilings that are saturated and sagging should be: A. drained, removed quickly,
and properly disposed
22. #22. The force exerted by water molecules in the air on surrounding surfaces is: b.
Vapor Pressure (page 11)
23. #23. Generally, fastest rate of evaporation from wet materials with a 70F (21C)
surface temperature [0.67 VP] would be an environment with: A. 60F (4C) and 80% RH
24. #24. Two hazardous materials more likely found in older building that require
compliance with laws and regulations when handled are: C. lead-based paint and
asbestos
25. #25. As humidity ratio increases (or decreases) another psychrometric chart
property that also increases (or decreases) is: C. vapor pressure
26. #26. Ventilating a structure during the initial stages of restoration can be effective
way to enhance drying by reducing the build up of: C. humidity
27. #27. When using government-registered biocide, restorers shall: C. apply according
to label directions
28. #28. Intentionally using outdoor air to reduce indoor humidity is known as: B. an
open drying system
, 29 #29. To confirm that proper drying conditions were established and also
that drying goals were met, restorers should maintain written logs to include:-
: B. an atmospheric humidity record and materials moisture content record
30. #30. A closed drying system is recommended during restoration when: A. outdoor
humidity ratio is higher than indoor humidity ratio
31. #31. the rating for water removal of refrigerant dehumidification normally is
expressed in pints of water removed in 24 hours at standard AHAM test conditions
of: C. 80 F (27C) and 60% RH
32. #32. The temperature at which air reaches 100% relative humidity is known as the:
C. dew point temperature
33. #33. Water-saturated carpet cushion (pad, underlay) should be removed and
disposed if: A. saturated with Category 2 or 3 water
34. #34. If vapor pressure in ambient air is lower than the vapor pressure in wet
materials, the most likely outcome will be: A. condensation
35. #35. Generally, refrigerant dehumidifiers are most efficient in the temper-
ature range of: C. 70F to 90F (21C to 32C)
36. #36. When performing water-damage restoration services and mold
growth is discovered, initially restorers should: D. use appropriate PPE, containment or
other engineering controls
37. #37. Water that originates from a sanitary water source and does not pose a
substantial risk from exposure is: A. category 1
38. #38. Before applying biocides in water-damaged structures, restorers should: D.
turn on the HVAC system to help spread biocides evenly
39. #39. One of the primary purposes of the initial extraction is to: D. contain
migrating water
40. #40. On a structural drying project, if indoor conditions are 88 F (31 C) and 60%
RH, condensation begins to occur on structural materials with a surface temperature
cooler than: A) 72 F (22 C)
41. #41. The ratio of the mass of water vapor to the mass of dry air in a given moist air
sample usually expressed in grams per pound (grams per kilogram) of dry air is the: C.
Saturation factor
COMPLETE TEST || QUESTIONS
AND ANSWERS (VERIFIED
ANSWERS) (LATEST UPDATE
2026) UPDATE!!
What included;
Updated for the 2026 exam, reflecting current IICRC WRT
concepts, terminology, and industry standards.
Thorough coverage of IICRC S500 Standard principles,
restorative drying procedures, moisture mapping, psychrometry,
dehumidification, evaporation, and drying science.
Questions covering equipment selection and calculations,
including air movers, dehumidifiers, extraction methods, airflow
requirements, and drying system design.
Detailed review of Category 1, 2, and 3 water losses,
contamination levels, safety procedures, and restoration protocols.
,1.#1. During the inspection process, restorers shall make a reasonable effort to: C.
identify and address potential safety hazards
2.#2. A significant amount of water absorption and evaporation load where wet porous
materials represent ~5% to ~40% of combined ceiling, walls, and flooring surface areas
and where low evaporation materials and assemblies are minimally wet is: B. class 2
3.#3. Multiple extraction of salvageable materials, especially porous material
(e.g. Carpet , cushion) often are required to:: decrease drying time
4.#4. To enhance drying, restorers should manage both ambient temperature and:
surface temperatures of affected materials
5.#5. Water damage restoration services should not begin until after the:: restorer has
entered into an adequately written contract.
6.#6. Two tools that should be used to properly disengage most stretched-in carpet:
Knee kicker and carpet awl
7.#7. When inspecting a water damage structure, restorers should inspect:: all
potentially affected areas.
8.#8. Buckled or damaged particle board should: removed and replaced with new
material. 9. #9. upon entering a building, professional moisture detection equipment
should be used to evaluate and document:: applicable psychrometric conditions and
moisture content or level readings .
10. #10. When wet, a structural material that loses most of its structural integrity, but
regains its strength when dry, is:: Concrete
11. #11 Initially, a method of search for abnormal moisture behind ceramic tile or
resilient flooring can be accomplished by: using a non-penetrating (non-invasive)
moisture
meter
12. #12. To minimize damage and reduce drying time, reduce drying time, restorers
should:: begin mitigation as soon as safely possible
13. #13. The moisture content of structural materials should be measured with a: A.
moisture meter
14. #14. When accessible from below, to dry wet wood subflooring under stone or tile
flooring, restorers can use low-humidity air and: D. vapor barrier
,15 #15. Biocides designed to destroy or eliminate all forms of microbial life and their
spores are: D. sterilizers
16. #16. When carpet is wet it can be delaminated by: D. improper handling and
disengag-
ing
17. #17. To minimize or control aerosolized soils or contaminants during
restoration, restorers can:: B. install one or more air filtration devices (AFDs)
18. #18. When pre-existing damage is discovered, restorer should: D. document and
bring it to the attention of materially interested parties
19. #19. Rapid drying of structural materials is achieved by: A. promoting evaporation
and dehumidification or ventilation
20. #20. When carpet and cushion (pad, underlay) are saturated with Category
3 water: B. Both should be removed for proper disposal
21. #21. To minimize safety concerns and to speed structural drying, gypsum board
(drywall) ceilings that are saturated and sagging should be: A. drained, removed quickly,
and properly disposed
22. #22. The force exerted by water molecules in the air on surrounding surfaces is: b.
Vapor Pressure (page 11)
23. #23. Generally, fastest rate of evaporation from wet materials with a 70F (21C)
surface temperature [0.67 VP] would be an environment with: A. 60F (4C) and 80% RH
24. #24. Two hazardous materials more likely found in older building that require
compliance with laws and regulations when handled are: C. lead-based paint and
asbestos
25. #25. As humidity ratio increases (or decreases) another psychrometric chart
property that also increases (or decreases) is: C. vapor pressure
26. #26. Ventilating a structure during the initial stages of restoration can be effective
way to enhance drying by reducing the build up of: C. humidity
27. #27. When using government-registered biocide, restorers shall: C. apply according
to label directions
28. #28. Intentionally using outdoor air to reduce indoor humidity is known as: B. an
open drying system
, 29 #29. To confirm that proper drying conditions were established and also
that drying goals were met, restorers should maintain written logs to include:-
: B. an atmospheric humidity record and materials moisture content record
30. #30. A closed drying system is recommended during restoration when: A. outdoor
humidity ratio is higher than indoor humidity ratio
31. #31. the rating for water removal of refrigerant dehumidification normally is
expressed in pints of water removed in 24 hours at standard AHAM test conditions
of: C. 80 F (27C) and 60% RH
32. #32. The temperature at which air reaches 100% relative humidity is known as the:
C. dew point temperature
33. #33. Water-saturated carpet cushion (pad, underlay) should be removed and
disposed if: A. saturated with Category 2 or 3 water
34. #34. If vapor pressure in ambient air is lower than the vapor pressure in wet
materials, the most likely outcome will be: A. condensation
35. #35. Generally, refrigerant dehumidifiers are most efficient in the temper-
ature range of: C. 70F to 90F (21C to 32C)
36. #36. When performing water-damage restoration services and mold
growth is discovered, initially restorers should: D. use appropriate PPE, containment or
other engineering controls
37. #37. Water that originates from a sanitary water source and does not pose a
substantial risk from exposure is: A. category 1
38. #38. Before applying biocides in water-damaged structures, restorers should: D.
turn on the HVAC system to help spread biocides evenly
39. #39. One of the primary purposes of the initial extraction is to: D. contain
migrating water
40. #40. On a structural drying project, if indoor conditions are 88 F (31 C) and 60%
RH, condensation begins to occur on structural materials with a surface temperature
cooler than: A) 72 F (22 C)
41. #41. The ratio of the mass of water vapor to the mass of dry air in a given moist air
sample usually expressed in grams per pound (grams per kilogram) of dry air is the: C.
Saturation factor
