FDNY W96 Full Service Shop of Portable
Fire Extinguishers Practice Exam
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
Q1. What is the primary purpose of a Full-Service Shop under the W96
certification?
A. To sell fire extinguishers
B. To perform complete servicing, recharging, and hydrostatic testing
C. To install sprinkler systems
D. To train building occupants
Rationale: Full-service shops are authorized to inspect, recharge, test, and
fully service portable extinguishers.
,Q2. How often must a portable fire extinguisher receive a general
maintenance check?
A. Every 6 months
B. Annually
C. Every 2 years
D. Every 5 years
Rationale: NFPA 10 and FDNY require annual maintenance for all portable
extinguishers.
Q3. Which document must a Full-Service Shop maintain for each
extinguisher serviced?
A. Purchase receipt
B. Customer photo ID
C. Service record with tag details
D. FDNY permit application
Rationale: Service records and tags are required for all maintenance
activities.
Q4. What color must the tamper seal typically be for a properly serviced
extinguisher?
A. Green
B. Any color as long as it is durable and consistent
,C. Black
D. Blue
Rationale: NFPA 10 does not mandate a specific color; consistency and
durability are required.
Q5. What is the minimum pressure test for a CO₂ extinguisher cylinder?
A. 500 psi
B. 1,000 psi
C. 3,000 psi
D. 5,000 psi
Rationale: CO₂ cylinders require hydrostatic testing at 5/3 their service
pressure, usually around 3,000 psi.
Q6. Which type of extinguisher requires a 12-year hydrostatic test?
A. CO₂
B. Cartridge-operated
C. Stored-pressure dry chemical
D. Halon 1211
Rationale: Dry chemical extinguishers typically require 12-year hydrostatic
testing.
, Q7. What must be done before hydrostatic testing any extinguisher
cylinder?
A. Freezing the cylinder
B. Punching a hole in it
C. Shaking it vigorously
D. Completely discharging and depressurizing it
Rationale: Cylinders must be depressurized to ensure safe testing.
Q8. If an extinguisher fails hydrostatic testing, what must be done?
A. Retest it
B. Refill it
C. Remove it permanently from service
D. Lower the pressure
Rationale: Failed cylinders must be condemned and removed from service.
Q9. The year of hydrostatic testing must be:
A. Written on a sticker
B. Stamped into a metal test collar or permanently marked
C. Emailed to the owner
D. Listed verbally
Rationale: Permanent marking is required to verify test compliance.
Fire Extinguishers Practice Exam
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
Q1. What is the primary purpose of a Full-Service Shop under the W96
certification?
A. To sell fire extinguishers
B. To perform complete servicing, recharging, and hydrostatic testing
C. To install sprinkler systems
D. To train building occupants
Rationale: Full-service shops are authorized to inspect, recharge, test, and
fully service portable extinguishers.
,Q2. How often must a portable fire extinguisher receive a general
maintenance check?
A. Every 6 months
B. Annually
C. Every 2 years
D. Every 5 years
Rationale: NFPA 10 and FDNY require annual maintenance for all portable
extinguishers.
Q3. Which document must a Full-Service Shop maintain for each
extinguisher serviced?
A. Purchase receipt
B. Customer photo ID
C. Service record with tag details
D. FDNY permit application
Rationale: Service records and tags are required for all maintenance
activities.
Q4. What color must the tamper seal typically be for a properly serviced
extinguisher?
A. Green
B. Any color as long as it is durable and consistent
,C. Black
D. Blue
Rationale: NFPA 10 does not mandate a specific color; consistency and
durability are required.
Q5. What is the minimum pressure test for a CO₂ extinguisher cylinder?
A. 500 psi
B. 1,000 psi
C. 3,000 psi
D. 5,000 psi
Rationale: CO₂ cylinders require hydrostatic testing at 5/3 their service
pressure, usually around 3,000 psi.
Q6. Which type of extinguisher requires a 12-year hydrostatic test?
A. CO₂
B. Cartridge-operated
C. Stored-pressure dry chemical
D. Halon 1211
Rationale: Dry chemical extinguishers typically require 12-year hydrostatic
testing.
, Q7. What must be done before hydrostatic testing any extinguisher
cylinder?
A. Freezing the cylinder
B. Punching a hole in it
C. Shaking it vigorously
D. Completely discharging and depressurizing it
Rationale: Cylinders must be depressurized to ensure safe testing.
Q8. If an extinguisher fails hydrostatic testing, what must be done?
A. Retest it
B. Refill it
C. Remove it permanently from service
D. Lower the pressure
Rationale: Failed cylinders must be condemned and removed from service.
Q9. The year of hydrostatic testing must be:
A. Written on a sticker
B. Stamped into a metal test collar or permanently marked
C. Emailed to the owner
D. Listed verbally
Rationale: Permanent marking is required to verify test compliance.
