Certification Exam Practice Questions

IICRC Master Restoration Technician Certification Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which type of water damage is considered the most hazardous due to

potential pathogens?

• Clean water
• Grey water
• Black water
• Category 1 water

Rationale: Black water (Category 3) is highly contaminated and may

contain sewage, chemicals, or pathogens, posing severe health risks.

• What is the primary purpose of an anemometer in restoration work?
• Measure humidity 1 / 4

• Detect mold spores
• Measure air velocity
• Test water pH

Rationale: An anemometer measures air velocity, helping technicians

assess airflow for drying strategies.

• Which of the following is the correct initial action for a fire-damaged

structure?

• Remove all contents immediately
• Apply deodorizing agents
• Ensure structural safety and stabilize the scene
• Begin smoke cleaning

Rationale: Safety comes first; unstable structures must be assessed

and stabilized before cleaning or removal.

• What is the recommended minimum temperature for drying wood

framing with applied structural drying (ASD)?

A. 50°F

B. 70°F

C. 90°F

D. 100°F

Rationale: A minimum of 70°F is generally required for effective

drying while preventing secondary damage.

• Which personal protective equipment is required when working in a

Category 3 water environment? 2 / 4

• Gloves only
• Safety glasses
• Full PPE including respirator, gloves, and protective clothing
• Ear protection

Rationale: Category 3 water contains hazardous pathogens; full PPE

is mandatory.

• Which type of carpet cleaning method involves preconditioning the

fibers and using counter-rotation brushes?

• Encapsulation
• Bonnet cleaning
• Hot water extraction
• Dry compound

Rationale: Bonnet cleaning agitates the carpet fibers to remove

surface soil using a rotary brush and absorbent pad.

• In mold remediation, which of the following is the primary purpose of

containment?

• To dry the structure faster
• To neutralize odors
• To prevent cross-contamination
• To increase air movement

Rationale: Containment prevents mold spores from spreading to

unaffected areas during remediation. 3 / 4

• Which of the following is a Class 3 water damage according to IICRC

standards?

• Water in ceiling cavity only
• Water affecting a small carpeted area
• Water contained in concrete slab
• Water saturation of entire room including walls and floors

Rationale: Class 3 involves significant absorption of water into walls,

ceilings, and subfloors.

• Which type of fire produces the highest concentration of soot and

smoke residue?

• Paper fire
• Gasoline fire
• Synthetic material fire
• Wood fire

Rationale: Synthetic materials produce dense, oily smoke that

adheres strongly to surfaces.

• What is the purpose of a psychrometer in water damage

restoration?

• Measure water temperature
• Measure airflow
• Measure relative humidity and temperature
• Detect microbial growth
• / 4