NFPA-99 CERTIFICATION REAL
EXAM WITH 100% ANSWERS
2025-2026
If nonmetallic flexible connectors is being used in a
category 1 healthcare faculty to connect to the manifold to
the gas distribution piping what is the maximum length
permitted for the flexible connectors?
A) 2.5 feet
B) 5 feet
C) They shall be no longer necessary
D) the use of flexible connectors is not permitted.
C) They shall be no longer necessary {5.1.10.11.6}
**Under which of these conditions shall the instrument Air
Reserve header cylinders be permitted to be stored with
the instrument air compressor?
A) the mechanical equipment room does not contain a
boiler.
B) the medical air compressors are in the same room.
C) the only motor-driven machinery in the room is for
instrument air equipment.
D) the room is secured with lockable doors.
C) The only motor-driven machinery in the room is for the
instrument air equipment
,Riser valves are those valves located where?
A) adjacent to the main riser downstream of any zone
valve.
B) anywhere in the lateral branches of the piping system.
C) in the mainline adjacent to the base of the riser.
D) in the riser adjacent to the mainline.
D) In the riser adjacent to the main line {5.1.4.4}
When is the initial pressure test conducted by the
installer?
A) after blowdown of the distribution piping.
B) after installation of alarm sensors.
C) before blowdown of distribution piping.
D) before installation of station rough in assembly.
A) After blow-down of the distribution
piping.{5.1.12.2.3.2(1)}
**In those portions of systems intended to handle oxygen
at pressure greater than 350 psi the inter connecting hose
shall not contain what materials?
A) brass.
B) copper
C) polymeric
D) stainless steel
C) Polymeric
, The tool shown here allows the installer to mechanically
limit the makeup depth of the fitting to be brazed. Under
what condition is this method permitted for the
installation of medical gas piping?
A) only on final line connectors.
B) only on vacuum systems.
C) where only B cup 5 brazing rod is used
D) where the limited makeup depth is not less than
minimum cut depth her ANSI / ASME recommendations
D) Where the limited makeup depth is not less than
minimum cup depth current ANSI\ASME recommendation
{5.1.10.4.6.1}
What is the standard gauge pressure for nitrogen gas
service?
A) 15 - 30
B) 50 - 55
C) 162 185
D) it varies with system type.
C) 160 - 185psi {5.1.11}
What is a NFPA 99 requirement for labeling of pipes in
medical gas system?
A) color coding
B) fixed label width
EXAM WITH 100% ANSWERS
2025-2026
If nonmetallic flexible connectors is being used in a
category 1 healthcare faculty to connect to the manifold to
the gas distribution piping what is the maximum length
permitted for the flexible connectors?
A) 2.5 feet
B) 5 feet
C) They shall be no longer necessary
D) the use of flexible connectors is not permitted.
C) They shall be no longer necessary {5.1.10.11.6}
**Under which of these conditions shall the instrument Air
Reserve header cylinders be permitted to be stored with
the instrument air compressor?
A) the mechanical equipment room does not contain a
boiler.
B) the medical air compressors are in the same room.
C) the only motor-driven machinery in the room is for
instrument air equipment.
D) the room is secured with lockable doors.
C) The only motor-driven machinery in the room is for the
instrument air equipment
,Riser valves are those valves located where?
A) adjacent to the main riser downstream of any zone
valve.
B) anywhere in the lateral branches of the piping system.
C) in the mainline adjacent to the base of the riser.
D) in the riser adjacent to the mainline.
D) In the riser adjacent to the main line {5.1.4.4}
When is the initial pressure test conducted by the
installer?
A) after blowdown of the distribution piping.
B) after installation of alarm sensors.
C) before blowdown of distribution piping.
D) before installation of station rough in assembly.
A) After blow-down of the distribution
piping.{5.1.12.2.3.2(1)}
**In those portions of systems intended to handle oxygen
at pressure greater than 350 psi the inter connecting hose
shall not contain what materials?
A) brass.
B) copper
C) polymeric
D) stainless steel
C) Polymeric
, The tool shown here allows the installer to mechanically
limit the makeup depth of the fitting to be brazed. Under
what condition is this method permitted for the
installation of medical gas piping?
A) only on final line connectors.
B) only on vacuum systems.
C) where only B cup 5 brazing rod is used
D) where the limited makeup depth is not less than
minimum cut depth her ANSI / ASME recommendations
D) Where the limited makeup depth is not less than
minimum cup depth current ANSI\ASME recommendation
{5.1.10.4.6.1}
What is the standard gauge pressure for nitrogen gas
service?
A) 15 - 30
B) 50 - 55
C) 162 185
D) it varies with system type.
C) 160 - 185psi {5.1.11}
What is a NFPA 99 requirement for labeling of pipes in
medical gas system?
A) color coding
B) fixed label width
