Liquids at Construction Sites Citywide Exam

FDNY S93 Supervise the Temporary Storage and Dispensing of Flammable or Combustible Liquids at Construction Sites (Citywide) Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which NFPA standard primarily governs the storage of flammable and

combustible liquids?

A) NFPA 10

B) NFPA 30

C) NFPA 25

D) NFPA 70

Rationale: NFPA 30 is the National Fire Protection Association

standard specifically for flammable and combustible liquids.

• A Class I flammable liquid is defined as a liquid with a flash point

below: 1 / 4

A) 73°F (22.8°C)

B) 100°F (37.8°C)

• 100°F (37.8°C) for Class IA and 73–100°F for Class IB

D) 200°F (93.3°C)

Rationale: Class I liquids are categorized into IA, IB, and IC based on

flash point and boiling point.

3. Temporary storage tanks at construction sites must be:

• Indoors only
• Underground
• Secured, properly labeled, and ventilated
• Any location as long as they are locked

Rationale: Safety codes require tanks to be secured, labeled, and in a

ventilated area to minimize fire hazards.

• The maximum allowable quantity of flammable liquid per control area

without a permit is:

• 10 gallons
• 25 gallons
• 55 gallons
• 100 gallons

Rationale: NFPA and NYC Fire Code specify limits for control areas

before additional permits are required.

• What is the minimum distance a storage tank must be from a property

line? 2 / 4

• 5 feet
• 10 feet
• 15 feet
• 20 feet

Rationale: NYC Fire Code requires minimum setback distances to

reduce fire risk to neighboring properties.

• Which of the following is NOT a required feature of a temporary

storage cabinet for flammable liquids?

• Self-closing doors
• Proper ventilation
• Spill containment
• External heating source

Rationale: External heating is prohibited due to ignition risk.

7. Class II combustible liquids have a flash point between:

• 73°F and 100°F
• 100°F and 140°F
• 140°F and 200°F
• Above 200°F

Rationale: Class II liquids are defined by their flash point between

100°F and 140°F.

8. The fire extinguisher type required near flammable liquid storage is:

• Water
• Class B foam or dry chemical 3 / 4

• CO₂ only
• Wet chemical

Rationale: Class B extinguishers are designed for flammable liquid

fires.

9. Dispensing flammable liquids in windy conditions is:

• Recommended
• Safe if in small quantities
• Prohibited
• Allowed if the operator wears gloves

Rationale: Wind can carry vapors and increase fire or explosion risk.

• The proper labeling on flammable liquid containers must

include:

• Contents only
• Contents, hazard class, and NFPA diamond
• Manufacturer logo
• Storage location

Rationale: NFPA and OSHA regulations require labels to clearly

identify hazards.

11. Grounding and bonding of storage tanks prevent:

• Overfilling
• Static electricity sparks
• Chemical reactions
• Temperature fluctuations
• / 4