Page 1 of 171
IICRC-WRT – Water Damage Restoration
Technician Complete Study Bundle
( Edition) Verified Practice
Exams | Study Guide | Flashcards |
Rationales Included | A+ Graded
Training Pack
Q1.Which category of water originates from a sanitary water
source and does not pose a substantial health risk?
A) Category 1
B) Category 2
C) Category 3
D) Category 4
,Page 2 of 171
Answer: A
Rationale: Category 1 water comes from clean, sanitary sources
such as broken supply lines, sink overflows without contaminants,
or melting ice. It is safe for humans at the time of intrusion.
Q2. A homeowner discovers standing water after a toilet supply
line breaks. The water is clean and has not contacted any
contaminants. This is classified as:
A) Category 1
B) Category 2
C) Category 3
D) Class 2
Answer: A
Rationale: A broken supply line is a Category 1 source.
However, the water may degrade to Category 2 if it flows
through contaminated building materials.
,Page 3 of 171
Q3. What is the classification for water that contains significant
contamination and has the potential to cause sickness or
discomfort?
A) Category 1
B) Category 2
C) Category 3
D) Category 4
Answer: B
Rationale: Category 2 (Gray Water) has significant chemical,
biological, or physical contamination. Examples include
dishwasher or washing machine discharges.
Q4. A dishwasher overflows onto a kitchen floor. The water
contains food particles and detergents. This is:
A) Category 1
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B) Category 2
C) Category 3
D) Class 3
Answer: B
Rationale: Discharge from dishwashers or washing machines is
Category 2 (Gray Water) because it contains chemicals, food
waste, or other contaminants.
Q5. Water intrusion from a sewer backup that contains
pathogenic agents is classified as:
A) Category 1
B) Category 2
C) Category 3
D) Category 4
Answer: C
Rationale: Category 3 (Black Water) is grossly unsanitary and
IICRC-WRT – Water Damage Restoration
Technician Complete Study Bundle
( Edition) Verified Practice
Exams | Study Guide | Flashcards |
Rationales Included | A+ Graded
Training Pack
Q1.Which category of water originates from a sanitary water
source and does not pose a substantial health risk?
A) Category 1
B) Category 2
C) Category 3
D) Category 4
,Page 2 of 171
Answer: A
Rationale: Category 1 water comes from clean, sanitary sources
such as broken supply lines, sink overflows without contaminants,
or melting ice. It is safe for humans at the time of intrusion.
Q2. A homeowner discovers standing water after a toilet supply
line breaks. The water is clean and has not contacted any
contaminants. This is classified as:
A) Category 1
B) Category 2
C) Category 3
D) Class 2
Answer: A
Rationale: A broken supply line is a Category 1 source.
However, the water may degrade to Category 2 if it flows
through contaminated building materials.
,Page 3 of 171
Q3. What is the classification for water that contains significant
contamination and has the potential to cause sickness or
discomfort?
A) Category 1
B) Category 2
C) Category 3
D) Category 4
Answer: B
Rationale: Category 2 (Gray Water) has significant chemical,
biological, or physical contamination. Examples include
dishwasher or washing machine discharges.
Q4. A dishwasher overflows onto a kitchen floor. The water
contains food particles and detergents. This is:
A) Category 1
, Page 4 of 171
B) Category 2
C) Category 3
D) Class 3
Answer: B
Rationale: Discharge from dishwashers or washing machines is
Category 2 (Gray Water) because it contains chemicals, food
waste, or other contaminants.
Q5. Water intrusion from a sewer backup that contains
pathogenic agents is classified as:
A) Category 1
B) Category 2
C) Category 3
D) Category 4
Answer: C
Rationale: Category 3 (Black Water) is grossly unsanitary and
