Technician IICRC WRT Practice Exam

Certified Water Damage Restoration Technician (IICRC WRT) Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary cause of secondary water damage?

a) Delayed mitigation

b) Initial water source

c) High humidity levels

d) Flooring type

Rationale: Secondary damage occurs when moisture and humidity

are not properly controlled, leading to mold, swelling, or structural deterioration.

2. Category 1 water is:

a) Water from a broken toilet 1 / 4

b) Water containing significant contaminants

c) Clean water from a potable source

d) Floodwater from rivers

Rationale: Category 1 water is clean and poses no immediate health

risk.

• Which class of water intrusion involves absorption into materials and

fast evaporation?

a) Class 1

b) Class 2

c) Class 3

d) Class 4

Rationale: Class 2 affects entire rooms with water that has wicked

into carpets and walls but still allows relatively fast drying.

• What is the primary purpose of air movers?

a) Remove debris

b) Increase evaporation

c) Lower humidity

d) Heat surfaces

Rationale: Air movers enhance the evaporation rate from wet

surfaces.

• Which moisture detection tool is suitable for non-porous surfaces?

a) Thermohygrometer

b) Moisture meter (pinless) 2 / 4

c) Psychrometer

d) Infrared camera

Rationale: Pinless meters can measure moisture in non-porous

materials without penetrating the surface.

6. Category 3 water is also known as:

a) Clean water

b) Grey water

c) Black water

d) Stormwater

Rationale: Category 3 water contains harmful pathogens and

chemicals, making it highly contaminated.

• What is the first step in a water damage restoration job?

a) Mold remediation

b) Structural drying

c) Inspection and assessment

d) Floor removal

Rationale: Proper assessment identifies water category, class, and

necessary mitigation steps.

• Which type of drying is most effective for hardwood floors?

a) Forced air only

b) Dehumidification only

c) Combination of air movement and dehumidification

d) Surface wiping only 3 / 4

Rationale: Hardwood requires careful drying using air movement and

low-grain dehumidification to prevent warping.

9. A psychrometer measures:

a) Surface moisture

b) Water flow

c) Temperature and relative humidity

d) Pressure differences

Rationale: Psychrometers are used to measure the key parameters

for drying and indoor air quality assessment.

• When removing wet carpet, what should be considered?

a) Carpet age only

b) Type of backing only

c) Water category and potential contamination

d) Floor color

Rationale: Category 2 or 3 water may require immediate removal

and disposal of affected materials.

• Which IICRC standard outlines water damage restoration

procedures?

a) S500

b) S500

c) S520

d) S400

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