Mobile Cooking Practice Exam Questions And

FDNY G23 Use of Liquefied Petroleum Gas or Compressed Natural Gas at Outdoor Events & Mobile Cooking Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary hazard associated with the use of LPG at outdoor

events?

• Electrical shock
• Fire and explosion
• Trip hazards
• Noise pollution

Rationale: LPG is highly flammable; improper handling can lead to

fires or explosions.

• Compressed natural gas (CNG) is stored in cylinders at what type of

pressure?

• Atmospheric pressure 1 / 4

• Vacuum pressure
• Low pressure
• High pressure

Rationale: CNG is stored at high pressure, typically around 3,600 psi,

requiring specialized handling.

• Before operating an LPG appliance at an outdoor event, which

inspection is required?

• Electrical grounding check
• Leak test using approved soap solution
• Fire extinguisher inspection
• Noise level measurement

Rationale: LPG connections must be tested for leaks before use to

prevent fire or explosion.

• What is the minimum distance LPG cylinders must be kept from

sources of ignition?

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

Rationale: NFPA 58 and FDNY regulations require a minimum of 20

feet to prevent accidental ignition.

• Which of the following is a proper way to transport LPG cylinders to an

outdoor event? 2 / 4

• Upright with valve protection
• Upright with valve protection and secured
• On their side in a vehicle
• In a sealed box with no ventilation

Rationale: Cylinders must remain upright and secure to prevent leaks

or damage.

• How should CNG cylinders be positioned when in use at mobile

cooking stations?

• Horizontal
• Upright
• Inverted
• At any angle

Rationale: CNG cylinders must be upright to ensure proper pressure

regulation and safety.

• What type of fire extinguisher is recommended for LPG or CNG fires?
• Water
• Foam
• Dry chemical

D. CO2

Rationale: Dry chemical extinguishers are effective for flammable

gas fires.

• Which action is prohibited when a leak in an LPG line is detected?
• Lighting a match to locate the leak 3 / 4

• Shutting off the cylinder
• Ventilating the area
• Evacuating personnel

Rationale: Igniting a flame near a leak can cause immediate fire or

explosion.

• What is the maximum number of portable LPG cylinders allowed at a

single outdoor event without a special permit?

• 2
• 3
• 4
• 5

Rationale: FDNY regulations limit the number of cylinders to reduce

risk without a permit.

• What is the primary purpose of a regulator on an LPG appliance?
• To increase flow
• To heat the gas
• To control gas pressure
• To filter impurities

Rationale: Regulators reduce high cylinder pressure to safe appliance

operating pressure.

• Where should spare LPG cylinders be stored during outdoor

events?

• Inside the cooking tent
• / 4