Page 1 of 39
IICRC MASTER RESTORATION TECHNICIAN CERTIFICATION
EXAM NEWEST 2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) ALL
ANSWERED {100 Q & A} ALREADY GRADED A+ | BRAND NEW!
| 100% GUARANTEED PASS
1. What is the primary purpose of an odor counteractant?
A. Mask odor
B. Chemically neutralize odor molecules
C. Increase humidity
D. Remove dust
Rationale: Counteractants react with odor molecules to
eliminate them rather than just masking.
2. When performing water extraction, which method
ensures maximum moisture removal from carpet
padding?
A. Air movers only
B. Dry vacuuming
C. Weighted extraction
D. Thermal fogging
Rationale: Weighted extraction applies pressure to force water
out of carpet fibers and padding, improving drying efficiency.
3. Which of the following is the least absorbent carpet fiber?
A. Wool
B. Cotton
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C. Nylon
D. Olefin
Rationale: Nylon has low moisture absorption compared to
natural fibers, aiding in faster drying and cleaning.
4. Which IICRC class involves water affecting only part of a
room with low porosity materials?
A. Class 3
B. Class 4
C. Class 1
D. Class 2
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Rationale: Class 1 is the least severe, involving minimal
absorption and fast drying potential.
5. Which agency regulates respirator use in restoration
projects?
A. NFPA
B. IICRC
C. OSHA
D. ANSI
Rationale: OSHA sets workplace safety standards, including
respirator use.
6. When performing carpet cleaning, what is the primary
purpose of preconditioning?
A. Dry the carpet
B. Loosen soil and suspend dirt
C. Neutralize odor
D. Increase airflow
Rationale: Preconditioning breaks down soil, making
extraction more effective.
7. What type of smoke is the most difficult to clean from
surfaces?
A. Paper smoke
B. Light wood smoke
C. Gasoline smoke
D. Protein-based smoke
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Rationale: Protein smoke is oily, sticky, and often invisible,
making it difficult to remove.
8. Which of the following is true about Category 2 water?
A. Safe to drink
B. Contains only dirt
C. May cause illness if ingested
D. Highly toxic
Rationale: Category 2 (grey water) contains chemical or
biological contaminants that can cause illness.
9. What is the primary function of a HEPA vacuum in
restoration?
A. Dry materials
B. Measure moisture
C. Remove fine particulates including mold spores from
surfaces
D. Heat air
Rationale: HEPA filtration traps particles down to 0.3
microns, reducing airborne contaminants.
10. Which type of fire restoration requires wet cleaning
methods?
A. Light soot only
B. Protein and wet smoke residues
C. Dry chemical residues
D. Smoke masking
Rationale: Protein and wet smoke residues are greasy and
IICRC MASTER RESTORATION TECHNICIAN CERTIFICATION
EXAM NEWEST 2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) ALL
ANSWERED {100 Q & A} ALREADY GRADED A+ | BRAND NEW!
| 100% GUARANTEED PASS
1. What is the primary purpose of an odor counteractant?
A. Mask odor
B. Chemically neutralize odor molecules
C. Increase humidity
D. Remove dust
Rationale: Counteractants react with odor molecules to
eliminate them rather than just masking.
2. When performing water extraction, which method
ensures maximum moisture removal from carpet
padding?
A. Air movers only
B. Dry vacuuming
C. Weighted extraction
D. Thermal fogging
Rationale: Weighted extraction applies pressure to force water
out of carpet fibers and padding, improving drying efficiency.
3. Which of the following is the least absorbent carpet fiber?
A. Wool
B. Cotton
,Page 2 of 39
C. Nylon
D. Olefin
Rationale: Nylon has low moisture absorption compared to
natural fibers, aiding in faster drying and cleaning.
4. Which IICRC class involves water affecting only part of a
room with low porosity materials?
A. Class 3
B. Class 4
C. Class 1
D. Class 2
,Page 3 of 39
Rationale: Class 1 is the least severe, involving minimal
absorption and fast drying potential.
5. Which agency regulates respirator use in restoration
projects?
A. NFPA
B. IICRC
C. OSHA
D. ANSI
Rationale: OSHA sets workplace safety standards, including
respirator use.
6. When performing carpet cleaning, what is the primary
purpose of preconditioning?
A. Dry the carpet
B. Loosen soil and suspend dirt
C. Neutralize odor
D. Increase airflow
Rationale: Preconditioning breaks down soil, making
extraction more effective.
7. What type of smoke is the most difficult to clean from
surfaces?
A. Paper smoke
B. Light wood smoke
C. Gasoline smoke
D. Protein-based smoke
, Page 4 of 39
Rationale: Protein smoke is oily, sticky, and often invisible,
making it difficult to remove.
8. Which of the following is true about Category 2 water?
A. Safe to drink
B. Contains only dirt
C. May cause illness if ingested
D. Highly toxic
Rationale: Category 2 (grey water) contains chemical or
biological contaminants that can cause illness.
9. What is the primary function of a HEPA vacuum in
restoration?
A. Dry materials
B. Measure moisture
C. Remove fine particulates including mold spores from
surfaces
D. Heat air
Rationale: HEPA filtration traps particles down to 0.3
microns, reducing airborne contaminants.
10. Which type of fire restoration requires wet cleaning
methods?
A. Light soot only
B. Protein and wet smoke residues
C. Dry chemical residues
D. Smoke masking
Rationale: Protein and wet smoke residues are greasy and
