FDNY S93 Certificate of Fitness Exam | Latest Update
2026/2027 | 200 Practice Questions & Verified Answers | NYC
Fire Safety Certification | A+ Guide
1. Which organization issues the S93 Certificate of Fitness?
A) OSHA
B) NYC Department of Buildings
C) FDNY
D) FEMA
Answer: C) FDNY
Explanation: The S93 Certificate of Fitness is issued by the Fire Department of the City of New York
(FDNY). It specifically regulates the supervision of temporary storage, handling, and dispensing of
flammable or combustible liquids at construction sites.
2. The S93 Certificate of Fitness authorizes an individual to supervise:
A) Permanent fuel storage facilities only
B) Temporary storage and dispensing of flammable or combustible liquids at construction sites
C) Fire alarm system installation
D) Elevator maintenance
Answer: B) Temporary storage and dispensing of flammable or combustible liquids at construction sites
Explanation: The S93 Certificate of Fitness is specifically issued to authorize supervision of temporary
storage and dispensing of flammable or combustible liquids at construction sites.
,3. What is the maximum size container for Class I flammable liquids allowed at a construction site
without a special permit?
A) 1 gallon
B) 5 gallons
C) 10 gallons
D) 25 gallons
Answer: B) 5 gallons
Explanation: FDNY allows up to 5gallon safety cans for Class I flammable liquids unless otherwise
permitted by special permit.
4. Class I liquids have flash points:
A) Above 200°F
B) Between 100–200°F
C) Below 100°F
D) Below 32°F
Answer: C) Below 100°F
Explanation: Class I liquids are defined by flash points below 100°F, making them highly flammable.
5. Which type of container is required for dispensing flammable liquids at construction sites?
,A) Plastic bucket
B) Metal drum without cap
C) Approved safety can
D) Any sealed container
Answer: C) Approved safety can
Explanation: FDNY requires ULlisted or approved safety cans for dispensing flammable liquids at
construction sites.
6. A temporary storage area for flammable liquids must be located at least how far from a building
opening?
A) 2 feet
B) 10 feet
C) 25 feet
D) 50 feet
Answer: C) 25 feet
Explanation: FDNY regulations require temporary storage areas for flammable liquids to be located at
least 25 feet from building openings to prevent vapors from entering structures.
7. Flammable storage must be located in:
A) Hallways
B) A secure, wellventilated area
C) Rooftops
, D) Stairwells
Answer: B) A secure, wellventilated area
Explanation: Proper ventilation reduces vapor accumulation, making secure, wellventilated areas
essential for flammable storage.
8. Dispensing of flammable liquids should occur:
A) In an enclosed room
B) In wellventilated outdoor or designated areas
C) In storage closets
D) Near heat sources
Explanation: Flammable vapors require airflow and separation from ignition sources, so dispensing
should occur in wellventilated outdoor or designated areas.
9. Hot work operations must be separated from flammable storage by at least:
A) 5 feet
B) 10 feet
C) 25 feet
D) 75 feet
Answer: C) 25 feet
Explanation: Hot work produces sparks that can ignite vapors. FDNY requires separation of at least 25
feet between hot work operations and flammable storage.
2026/2027 | 200 Practice Questions & Verified Answers | NYC
Fire Safety Certification | A+ Guide
1. Which organization issues the S93 Certificate of Fitness?
A) OSHA
B) NYC Department of Buildings
C) FDNY
D) FEMA
Answer: C) FDNY
Explanation: The S93 Certificate of Fitness is issued by the Fire Department of the City of New York
(FDNY). It specifically regulates the supervision of temporary storage, handling, and dispensing of
flammable or combustible liquids at construction sites.
2. The S93 Certificate of Fitness authorizes an individual to supervise:
A) Permanent fuel storage facilities only
B) Temporary storage and dispensing of flammable or combustible liquids at construction sites
C) Fire alarm system installation
D) Elevator maintenance
Answer: B) Temporary storage and dispensing of flammable or combustible liquids at construction sites
Explanation: The S93 Certificate of Fitness is specifically issued to authorize supervision of temporary
storage and dispensing of flammable or combustible liquids at construction sites.
,3. What is the maximum size container for Class I flammable liquids allowed at a construction site
without a special permit?
A) 1 gallon
B) 5 gallons
C) 10 gallons
D) 25 gallons
Answer: B) 5 gallons
Explanation: FDNY allows up to 5gallon safety cans for Class I flammable liquids unless otherwise
permitted by special permit.
4. Class I liquids have flash points:
A) Above 200°F
B) Between 100–200°F
C) Below 100°F
D) Below 32°F
Answer: C) Below 100°F
Explanation: Class I liquids are defined by flash points below 100°F, making them highly flammable.
5. Which type of container is required for dispensing flammable liquids at construction sites?
,A) Plastic bucket
B) Metal drum without cap
C) Approved safety can
D) Any sealed container
Answer: C) Approved safety can
Explanation: FDNY requires ULlisted or approved safety cans for dispensing flammable liquids at
construction sites.
6. A temporary storage area for flammable liquids must be located at least how far from a building
opening?
A) 2 feet
B) 10 feet
C) 25 feet
D) 50 feet
Answer: C) 25 feet
Explanation: FDNY regulations require temporary storage areas for flammable liquids to be located at
least 25 feet from building openings to prevent vapors from entering structures.
7. Flammable storage must be located in:
A) Hallways
B) A secure, wellventilated area
C) Rooftops
, D) Stairwells
Answer: B) A secure, wellventilated area
Explanation: Proper ventilation reduces vapor accumulation, making secure, wellventilated areas
essential for flammable storage.
8. Dispensing of flammable liquids should occur:
A) In an enclosed room
B) In wellventilated outdoor or designated areas
C) In storage closets
D) Near heat sources
Explanation: Flammable vapors require airflow and separation from ignition sources, so dispensing
should occur in wellventilated outdoor or designated areas.
9. Hot work operations must be separated from flammable storage by at least:
A) 5 feet
B) 10 feet
C) 25 feet
D) 75 feet
Answer: C) 25 feet
Explanation: Hot work produces sparks that can ignite vapors. FDNY requires separation of at least 25
feet between hot work operations and flammable storage.
