Exam Questions And Correct Answers

FDNY G71 Supervision Of Piped Non- Flammable Medical Gases Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary purpose of the FDNY G71 certificate?
• To supervise flammable gases
• To supervise piped non-flammable medical gases
• To install oxygen tanks
• To supervise gas welding operations

Rationale: The G71 specifically authorizes supervision of piped non-

flammable medical gases in hospitals and similar facilities.

• Which of the following is considered a non-flammable medical gas?
• Acetylene
• Oxygen 1 / 4

• Propane
• Hydrogen

Rationale: Oxygen is non-flammable but supports combustion; it is

classified as a medical gas.

• Who may operate medical gas systems under supervision?
• Any employee in the building
• Temporary contractors
• Only trained and authorized personnel
• Security personnel

Rationale: FDNY regulations allow only properly trained and

authorized personnel to interact with the system.

• What is the minimum distance medical gas cylinders must be kept

from combustible materials?

• 1 foot
• 2 feet
• 3 feet
• 6 feet

Rationale: The safety standard generally requires separation of gas

cylinders from combustibles by at least 3 feet.

• What does the color green commonly indicate in medical gas piping?
• Nitrogen
• Oxygen
• Vacuum lines 2 / 4

• Carbon dioxide

Rationale: US and NYC medical gas piping conventionally uses green

for oxygen.

• Which agency issues the G71 certificate?

A. DOH

B. OSHA

C. EPA

D. FDNY

Rationale: The FDNY (Fire Department of New York) is the issuing

authority for the certification.

• Which gas is commonly used for patient anesthesia?
• Oxygen
• Nitrogen
• Nitrous oxide

D. CO₂

Rationale: Nitrous oxide is frequently used as an anesthetic gas.

• Where must main shutoff valves for medical gas systems be located?
• Random valve placements
• In utility basements only
• In clearly marked and accessible locations
• Hidden behind locked panels

Rationale: Emergency shutoffs must be visible and accessible for

safety. 3 / 4

9. The G71 holder must ensure gas alarms:

• Are disconnected during maintenance
• Are always operational
• Are only tested yearly
• Are optional

Rationale: Proper functioning of gas alarms is required at all times.

10. Cylinders must be stored:

• Horizontally on the floor
• Secured upright
• Leaning against the wall
• In any convenient position

Rationale: Upright, secured storage prevents hazards such as falling

or valve damage.

11. The pressure in a piped medical oxygen line is typically:

• 5–10 psi
• Around 50 psi
• 150 psi
• 500 psi

Rationale: Medical oxygen delivery systems commonly operate

around 50 psi.

12. The piping for medical gases must be made of:

A. PVC

• Copper tubing
• / 4