FDNY COF G71 CORRECT QUESTIONS
& ANSWERS|| 2025 LATEST UPDATE
Who handles the SUPERVISION and STORAGE of the compressed gases? -
ANSWER A person holding a G71 certificate of fitness
Who handles the INSTALLATION and MAINTENENCE of compressed gases? -
ANSWER A person holding a G79 certificate of fitness
Permits issued prior to July 1st 2008 are subject to? - ANSWER Compliance with
former fire codes
Permits issued after July 1st 2008 are subject to? - ANSWER Compliance with the new
fire code
Both new and pre existing installations are subject to? - ANSWER Operational and
maintenance requirements of the 2008 fire code
Permanent FDNY permits are valid for? - ANSWER 12 months only
Permits are required for which compressed gases and in what amount? - ANSWER
Carbon dioxide: 4500
Non flammable and non oxidizing: 3000
oxidizing: 504
The transport of hazardous materials is accompanied by? - ANSWER US DOT
compliant placards to identify hazardous materials for the roadway, railway, waterway
and air. Shows type of hazard and degree of harm.
What do the 4 colors on the diamond signs represent? - ANSWER Blue: Health hazard
Red: Flammability
Yellow: Reactivity
White: Special Hazard : Ex: Oxidizer
What is the triggering amount for a diamond sign? - ANSWER The amount required for
a fire code permit
Atmospheric Tank - ANSWER A tank designed to operate at atmospheric pressures to
1.0 psi
OXYGEN COLOR? - ANSWER green
MEDICAL AIR COLOR? - ANSWER yellow
, Nitrogen color? - ANSWER black
Nitrous oxide color? - ANSWER blue
Helium Color? - ANSWER Brown
Carbon dioxide color? - ANSWER Grey
Heliox - ANSWER Brown and green
Emergency shutoff valvesshall be identified by - ANSWER A durable sign clearly visible
near the valve
ABSOLUTE ZERO - ANSWER Temperature at which all molecular motion, and
consequently all life, ceases according to Einstein and the kinetic molecular theory.
Absolute zero has never been reached, but it has been approached by the
temperatures of some cryogenic gases
ATMOSPHERIC TANK - ANSWER A storage tank designed to operate at pressures
from atmospheric through 1.0 pound per square inch gauge measured at the top of the
tank.
AREA ALARM SYSTEM - ANSWER A warning system within an area of use that
provides continuous visible and audible surveillance of Level 1 and Level 2 medical gas
systems.
BULK NITROUS OXIDE SYSTEM - ANSWER An assembly of equipment as described
in the definition of bulk oxygen system that has a storage capacity of more than 3200 lb
[approximately 28,000 ft3 (at normal temperature and pressure)] of nitrous oxide.
CONTAINER - ANSWER For solid and liquid hazardous materials, a vessel of 60
gallons or less in capacity used for storage or transportation. For compressed gases, a
cylinder, pressure vessel or tank designed for pressures greater than one atmosphere
at 68°F. Pipes, piping systems, engines and engine fuel tanks associated with solid or
liquid hazardous materials or compressed gases, shall not be deemed to be containers
if in active use.
CONTAINMENT SYSTEM - ANSWER A gas-tight recovery system comprised of
devices or equipment which, when placed over or around the portion of the compressed
gas container that is leaking, stops or controls the escape of gas from the container.
CONTAINMENT VESSEL - ANSWER A gas-tight vessel which, when installed or
placed over or around a leaking compressed gas container, confines the container and
the gas leaking therefrom.
& ANSWERS|| 2025 LATEST UPDATE
Who handles the SUPERVISION and STORAGE of the compressed gases? -
ANSWER A person holding a G71 certificate of fitness
Who handles the INSTALLATION and MAINTENENCE of compressed gases? -
ANSWER A person holding a G79 certificate of fitness
Permits issued prior to July 1st 2008 are subject to? - ANSWER Compliance with
former fire codes
Permits issued after July 1st 2008 are subject to? - ANSWER Compliance with the new
fire code
Both new and pre existing installations are subject to? - ANSWER Operational and
maintenance requirements of the 2008 fire code
Permanent FDNY permits are valid for? - ANSWER 12 months only
Permits are required for which compressed gases and in what amount? - ANSWER
Carbon dioxide: 4500
Non flammable and non oxidizing: 3000
oxidizing: 504
The transport of hazardous materials is accompanied by? - ANSWER US DOT
compliant placards to identify hazardous materials for the roadway, railway, waterway
and air. Shows type of hazard and degree of harm.
What do the 4 colors on the diamond signs represent? - ANSWER Blue: Health hazard
Red: Flammability
Yellow: Reactivity
White: Special Hazard : Ex: Oxidizer
What is the triggering amount for a diamond sign? - ANSWER The amount required for
a fire code permit
Atmospheric Tank - ANSWER A tank designed to operate at atmospheric pressures to
1.0 psi
OXYGEN COLOR? - ANSWER green
MEDICAL AIR COLOR? - ANSWER yellow
, Nitrogen color? - ANSWER black
Nitrous oxide color? - ANSWER blue
Helium Color? - ANSWER Brown
Carbon dioxide color? - ANSWER Grey
Heliox - ANSWER Brown and green
Emergency shutoff valvesshall be identified by - ANSWER A durable sign clearly visible
near the valve
ABSOLUTE ZERO - ANSWER Temperature at which all molecular motion, and
consequently all life, ceases according to Einstein and the kinetic molecular theory.
Absolute zero has never been reached, but it has been approached by the
temperatures of some cryogenic gases
ATMOSPHERIC TANK - ANSWER A storage tank designed to operate at pressures
from atmospheric through 1.0 pound per square inch gauge measured at the top of the
tank.
AREA ALARM SYSTEM - ANSWER A warning system within an area of use that
provides continuous visible and audible surveillance of Level 1 and Level 2 medical gas
systems.
BULK NITROUS OXIDE SYSTEM - ANSWER An assembly of equipment as described
in the definition of bulk oxygen system that has a storage capacity of more than 3200 lb
[approximately 28,000 ft3 (at normal temperature and pressure)] of nitrous oxide.
CONTAINER - ANSWER For solid and liquid hazardous materials, a vessel of 60
gallons or less in capacity used for storage or transportation. For compressed gases, a
cylinder, pressure vessel or tank designed for pressures greater than one atmosphere
at 68°F. Pipes, piping systems, engines and engine fuel tanks associated with solid or
liquid hazardous materials or compressed gases, shall not be deemed to be containers
if in active use.
CONTAINMENT SYSTEM - ANSWER A gas-tight recovery system comprised of
devices or equipment which, when placed over or around the portion of the compressed
gas container that is leaking, stops or controls the escape of gas from the container.
CONTAINMENT VESSEL - ANSWER A gas-tight vessel which, when installed or
placed over or around a leaking compressed gas container, confines the container and
the gas leaking therefrom.
