Citywide Exam Practice Questions And

FDNY S94 Handling and Dispensing Flammable or Combustible Liquids (Citywide) Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the flash point of a flammable liquid?
• The temperature at which the liquid boils
• The temperature at which the liquid ignites spontaneously
• The lowest temperature at which a liquid gives off vapors that can

ignite

• The temperature at which a liquid freezes

Rationale: The flash point is the lowest temperature at which a liquid

produces enough vapor to ignite when exposed to an ignition source. 1 / 4

• Which NFPA standard governs flammable and combustible liquids?

A) NFPA 10

B) NFPA 30

C) NFPA 70

D) NFPA 58

Rationale: NFPA 30, “Flammable and Combustible Liquids Code,”

provides requirements for storage, handling, and use.

• Which of the following is considered a flammable liquid?
• Diesel fuel
• Kerosene
• Gasoline
• Fuel oil

Rationale: Gasoline has a flash point below 100°F, classifying it as a

flammable liquid.

• Combustible liquids are divided into which two classes?
• I and II
• II and III
• II and IIIA/B
• I and III

Rationale: Combustible liquids are Class II (flash point 100–140°F)

and Class III (III-A: 140–200°F, III-B: >200°F).

• What is the main hazard of static electricity during liquid fuel transfer?
• Corrosion of containers 2 / 4

• Container rupture
• Ignition of vapors
• Spillage

Rationale: Static electricity can discharge and ignite flammable

vapors during fueling operations.

• What is the proper minimum distance between a flammable liquid

storage tank and a building?

• 5 feet
• 10 feet
• 20 feet
• 50 feet

Rationale: NFPA 30 sets minimum distance requirements to prevent

fire spread to structures.

• Which fire extinguisher type is recommended for Class B fires?
• Water

B) CO₂

• Dry chemical
• Foam

Rationale: Class B fires involve flammable liquids; dry chemical

extinguishers interrupt the chemical reaction of the fire.

• During dispensing operations, a nozzle must have what feature to

prevent fires?

• Automatic shutoff 3 / 4

• Grounding and bonding
• Transparent body
• Pressure gauge

Rationale: Grounding and bonding prevent static electricity from

igniting flammable vapors.

• Which container is suitable for storing flammable liquids?
• Glass bottle
• Open pail
• Approved metal safety can
• Plastic bag

Rationale: Metal safety cans reduce the risk of spills, contain

pressure, and control vapor release.

• What does the term “vapor density” refer to?
• Weight of a liquid per gallon
• Viscosity
• Weight of a vapor compared to air
• Evaporation rate

Rationale: Vapor density determines whether vapors will rise or sink,

impacting fire and explosion hazards.

• Which color is typically used to identify gasoline storage

containers?

• Red
• Yellow
• / 4