FDNY W97 – Fumigation and Insecticidal Fogging Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf
1.What is the primary purpose of a fumigation warning sign?
- Notify building management
- Warn individuals that fumigation is in progress
- Identify the type of infestation
- Track chemical quantities
Rationale: Warning signs are required to prevent unauthorized entry into a
fumigated area.
2. 1 / 4
Who is responsible for ensuring the area is fully vacated before fumigation begins?
- Property owner
- Janitorial staff
- Certificate of Fitness holder
- Security personnel
Rationale: The C of F holder must confirm the space is clear to maintain
safety compliance.
3.Which gas detection device is acceptable for verifying reentry safety after fumigation?
- Home-use air freshener sensor
- Approved gas concentration meter
- Infrared thermometer
- Smoke detector
Rationale: Only professional, approved gas detection meters measure
hazardous concentrations accurately.
4.What must be available on-site during fumigation involving toxic chemicals?
- Extra building keys 2 / 4
- Safety Data Sheets (SDS)
- Customer invoices
- Camera equipment
Rationale: SDS provide chemical hazard and emergency information
required by code.
5.When is reentry permitted following fumigation?
- Immediately after fogging
- When residue settles
- After 1 hour
- When gas concentrations fall below permissible limits
Rationale: Reentry only occurs once certified as safe according to detection
readings.
6.Which authority must be notified before beginning fumigation operations?
- Department of Labor
B. FDNY
C. EPA
D. OSHA 3 / 4
Rationale: FDNY requires notification prior to fumigation for safety
monitoring.
7.
A fumigation log must include:
- Weather predictions
- Chemical name and amount used
- Employee salaries
- Number of pests found
Rationale: Accurate records of chemicals ensure regulatory compliance and
emergency reference.
8.Which condition requires halting fumigation immediately?
- Nearby traffic noise
- Building ventilation failure
- Low humidity
- Presence of office furniture
Rationale: Ventilation issues risk unsafe chemical buildup.
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