Carbon Dioxide Dispensers Exam

FDNY G82 Handling and Dispensing of Carbon Dioxide Dispensers Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• For the G82 certification, what gas is being specifically regulated?
• Nitrogen
• Argon
• Propane
• Carbon dioxide (CO₂)

CO₂ is the specific gas overseen under the G82 certification.

• Carbon dioxide is classified as what in terms of hazard?
• Flammable gas
• Asphyxiant gas
• Radioactive gas
• Oxidizer 1 / 3

CO₂ displaces oxygen and can cause suffocation, making it an asphyxiant.

• At high concentrations, carbon dioxide poses what main risk to

humans?

• Burns
• Toxic poisoning
• Oxygen displacement leading to suffocation
• Eye corrosion

High CO₂ levels displace oxygen, creating suffocation hazards.

4. The FDNY C of F G82 holder must be present during:

• Welding operations
• CO₂ cylinder handling or refilling
• Propane fueling
• Construction demolition

The certification holder supervises CO₂ dispensing and related operations.

5. CO₂ cylinders must be stored:

• In hot mechanical rooms
• Upright and secured
• In the basement on their sides
• Near electrical panels

Cylinders must be vertical and secured to prevent falling or damage. 2 / 3

• What temperature condition is required for CO₂ storage?
• Stored outside in freezing temperatures
• Inside at 120°F
• Away from heat sources and direct sunlight
• Stored on heated racks

Heat raises internal gas pressure, increasing explosion risk.

7. A CO₂ cylinder should be visually inspected for:

• Color consistency
• Odor
• Rust, dents, or mechanical damage
• Dust

Exterior damage can indicate compromised cylinder integrity.

• What is the appropriate oxygen level for safe occupancy in a space?
• 5%

B. 10%

• 19.5% or higher

D. 30%

OSHA defines oxygen-deficient atmospheres as below 19.5%.

• Which sensory warning does CO₂ provide?
• Strong smell
• Loud sound
• Bright color
• / 3