FDNY W97 CERTIFICATE OF FITNESS –
FUMIGATION & INSECTICIDAL FOGGING
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD
1. What is the primary purpose of a W97 Certificate of Fitness?
A. To operate fire alarm systems
B. To conduct fire drills
C. To safely perform fumigation and insecticidal fogging operations
D. To install portable fire extinguishers
Rationale: The W97 C of F authorizes personnel to safely handle and
apply fumigants and insecticidal fogs.
2. Before starting a fumigation, what must be done to the area?
A. Only ventilate the area after treatment
B. Evacuate all persons and animals from the area
C. Turn off the lights
D. Spray water on surfaces
Rationale: Areas must be cleared of people and animals to prevent
exposure to toxic chemicals.
3. Which of the following is a common hazard of fumigation?
A. Low humidity
B. Chemical poisoning
C. Noise pollution
,D. Electrical shock
Rationale: Fumigation chemicals can be highly toxic, posing inhalation
or contact hazards.
4. Which personal protective equipment (PPE) is required during
insecticidal fogging?
A. Safety shoes only
B. Respirator, gloves, and protective clothing
C. Hard hat and safety glasses
D. Hearing protection only
Rationale: Respirators and protective clothing prevent inhalation and
dermal exposure to chemicals.
5. What is the safest way to store fumigants?
A. In any unlocked cabinet
B. Near heat sources
C. In a cool, dry, and well-ventilated area away from ignition sources
D. In a bathroom
Rationale: Proper storage reduces fire risk and chemical degradation.
6. How often must a W97 holder inspect their equipment?
A. Once a year
B. Before each use
C. After every 10 uses
D. Only when a malfunction occurs
Rationale: Inspecting equipment before use ensures safety and proper
function.
7. What type of fire extinguisher should be available during
fumigation?
A. Water only
B. Foam only
C. Appropriate class depending on chemical used
, D. No extinguisher needed
Rationale: Some fumigants are flammable and require the correct class
of extinguisher.
8. Which sign must be posted before a fumigation begins?
A. “Wet Floor”
B. “No Smoking” only
C. “Danger: Fumigation in Progress”
D. “Authorized Personnel Only”
Rationale: Warning signs prevent accidental entry into hazardous areas.
9. How should leftover fumigants be disposed of?
A. Pour down the drain
B. Burn them in an open area
C. Follow manufacturer and regulatory guidelines
D. Throw in regular trash
Rationale: Improper disposal can cause environmental contamination or
legal violations.
10. What is a primary symptom of acute exposure to fumigants?
A. Sneezing
B. Headache only
C. Dizziness, nausea, or respiratory distress
D. Itchy eyes only
Rationale: Fumigant exposure can affect the nervous system and
respiratory tract.
11. Which of the following is an example of a fumigant?
A. Soap solution
B. Vinegar
C. Methyl bromide
D. Baking soda
FUMIGATION & INSECTICIDAL FOGGING
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD
1. What is the primary purpose of a W97 Certificate of Fitness?
A. To operate fire alarm systems
B. To conduct fire drills
C. To safely perform fumigation and insecticidal fogging operations
D. To install portable fire extinguishers
Rationale: The W97 C of F authorizes personnel to safely handle and
apply fumigants and insecticidal fogs.
2. Before starting a fumigation, what must be done to the area?
A. Only ventilate the area after treatment
B. Evacuate all persons and animals from the area
C. Turn off the lights
D. Spray water on surfaces
Rationale: Areas must be cleared of people and animals to prevent
exposure to toxic chemicals.
3. Which of the following is a common hazard of fumigation?
A. Low humidity
B. Chemical poisoning
C. Noise pollution
,D. Electrical shock
Rationale: Fumigation chemicals can be highly toxic, posing inhalation
or contact hazards.
4. Which personal protective equipment (PPE) is required during
insecticidal fogging?
A. Safety shoes only
B. Respirator, gloves, and protective clothing
C. Hard hat and safety glasses
D. Hearing protection only
Rationale: Respirators and protective clothing prevent inhalation and
dermal exposure to chemicals.
5. What is the safest way to store fumigants?
A. In any unlocked cabinet
B. Near heat sources
C. In a cool, dry, and well-ventilated area away from ignition sources
D. In a bathroom
Rationale: Proper storage reduces fire risk and chemical degradation.
6. How often must a W97 holder inspect their equipment?
A. Once a year
B. Before each use
C. After every 10 uses
D. Only when a malfunction occurs
Rationale: Inspecting equipment before use ensures safety and proper
function.
7. What type of fire extinguisher should be available during
fumigation?
A. Water only
B. Foam only
C. Appropriate class depending on chemical used
, D. No extinguisher needed
Rationale: Some fumigants are flammable and require the correct class
of extinguisher.
8. Which sign must be posted before a fumigation begins?
A. “Wet Floor”
B. “No Smoking” only
C. “Danger: Fumigation in Progress”
D. “Authorized Personnel Only”
Rationale: Warning signs prevent accidental entry into hazardous areas.
9. How should leftover fumigants be disposed of?
A. Pour down the drain
B. Burn them in an open area
C. Follow manufacturer and regulatory guidelines
D. Throw in regular trash
Rationale: Improper disposal can cause environmental contamination or
legal violations.
10. What is a primary symptom of acute exposure to fumigants?
A. Sneezing
B. Headache only
C. Dizziness, nausea, or respiratory distress
D. Itchy eyes only
Rationale: Fumigant exposure can affect the nervous system and
respiratory tract.
11. Which of the following is an example of a fumigant?
A. Soap solution
B. Vinegar
C. Methyl bromide
D. Baking soda
