Med gas Refresher Exam Questions and
Answers|| GRADED A+|| LATEST UPDATE
2026
WAGD networks shall provide a WAGD inlet in all locations where __________ is
intended to be administered.
a. Nitrogen
b. Medical Air
c. Nitrous Oxide
d. Oxygen
c. Nitrous Oxide
Audible and visual alarm indicators shall meet which of the following
requirements?
a. Individual indicators shall NOT be less than DN20 size
b. Testing to determine indicator function should be scheduled periodically and
records maintained between testing.
c. CGA C-7
d. The staff should be trained to operate the test button periodically and report
malfunctions.
b. Testing to determine indicator function should be scheduled periodically and records
maintained between testing.
,Only one service valve is required for each branch off the riser, unless the
number of zone valves on that branch exceeds ______ valves.
a. 6
b. 8
c. there is no maximum
d. 4
c. there is no maximum
Which of the following systems shall not be permitted to be located in an outdoor
enclosure?
a. Bulk cryogenic liquid systems
b. Manifolds for gas cylinders
c. Manifolds for cryogenic liquid containers
d. Medical air compressor sources
d. Medical air compressor sources
NFPA 99 requires tubing to be cut square using a sharp tubing cutter that shall be
free from grease, oil or other lubricants not suitable for oxygen service. What sort
of treatment is permitted of the tube ends before brazing?
a. May be reamed
b. May be deburred or rolled smooth
c. May be re-cleaned
d. none of the above
b. May be deburred or rolled smooth
,Excluding outdoor locations, which of these is an NFPA 99 requirement for the
wiring of each of the two mandatory master alarms?
a.Common conductors
b.Without any splices
c.Wired independently to the initiating device(s) for each signal
d.Alarms shall be sent to the area alarm panel in the emergency room
c. Wired independently to the initiating device(s) for each signal
Inspection and testing shall be performed on all new piped gas systems,
additions, renovations, temporary installations or repaired systems to assure the
facility that all applicable provisions of NFPA 99C have been adhered to and
system integrity has been achieved or maintained. What is required of the
individual doing the testing or inspecting?
a.Have two years experience
b.Have a documented procedure
c.Be a certified tester
d.none of the above
b. Have a documented procedure
With the approval of the authority having jurisdiction, in what areas shall the
shutoff valves be permitted to be secured to prevent inappropriate access?
a.critical care
b.psychiatric or pediatric
c.maternity
d.anesthetizing
, b. psychiatric or pediatric
For purposes of this code, an oxygen enriched atmosphere is an atmosphere
where to total concentration of oxygen exceeds _______ by volume.
a.23.5%
b.23.6%
c.19.5%
d.93%
a.23.5%
Compressed gas cylinders must meet which of the following criteria in order to
be acceptable for use in an acute health care facility?
a.Be appropriately identified by labels or stencils in accordance with CGA C-7
criteria
b.Be appropriately color coded in accordance with U.S.D.A. requirements
c.Be constructed in accordance with specifications and regulations of OSHA
d.Utilize gas specific CGA connections
a. Be appropriately identified by labels or stencils in accordance with CGA C-7 criteria
In those portions of the system intended to handle oxygen at pressures greater
than 350 psi, the interconnecting hose shall not contain __________ materials.
a.stainless steel
b.polymeric
c.copper
d.brass
b. polymeric
Answers|| GRADED A+|| LATEST UPDATE
2026
WAGD networks shall provide a WAGD inlet in all locations where __________ is
intended to be administered.
a. Nitrogen
b. Medical Air
c. Nitrous Oxide
d. Oxygen
c. Nitrous Oxide
Audible and visual alarm indicators shall meet which of the following
requirements?
a. Individual indicators shall NOT be less than DN20 size
b. Testing to determine indicator function should be scheduled periodically and
records maintained between testing.
c. CGA C-7
d. The staff should be trained to operate the test button periodically and report
malfunctions.
b. Testing to determine indicator function should be scheduled periodically and records
maintained between testing.
,Only one service valve is required for each branch off the riser, unless the
number of zone valves on that branch exceeds ______ valves.
a. 6
b. 8
c. there is no maximum
d. 4
c. there is no maximum
Which of the following systems shall not be permitted to be located in an outdoor
enclosure?
a. Bulk cryogenic liquid systems
b. Manifolds for gas cylinders
c. Manifolds for cryogenic liquid containers
d. Medical air compressor sources
d. Medical air compressor sources
NFPA 99 requires tubing to be cut square using a sharp tubing cutter that shall be
free from grease, oil or other lubricants not suitable for oxygen service. What sort
of treatment is permitted of the tube ends before brazing?
a. May be reamed
b. May be deburred or rolled smooth
c. May be re-cleaned
d. none of the above
b. May be deburred or rolled smooth
,Excluding outdoor locations, which of these is an NFPA 99 requirement for the
wiring of each of the two mandatory master alarms?
a.Common conductors
b.Without any splices
c.Wired independently to the initiating device(s) for each signal
d.Alarms shall be sent to the area alarm panel in the emergency room
c. Wired independently to the initiating device(s) for each signal
Inspection and testing shall be performed on all new piped gas systems,
additions, renovations, temporary installations or repaired systems to assure the
facility that all applicable provisions of NFPA 99C have been adhered to and
system integrity has been achieved or maintained. What is required of the
individual doing the testing or inspecting?
a.Have two years experience
b.Have a documented procedure
c.Be a certified tester
d.none of the above
b. Have a documented procedure
With the approval of the authority having jurisdiction, in what areas shall the
shutoff valves be permitted to be secured to prevent inappropriate access?
a.critical care
b.psychiatric or pediatric
c.maternity
d.anesthetizing
, b. psychiatric or pediatric
For purposes of this code, an oxygen enriched atmosphere is an atmosphere
where to total concentration of oxygen exceeds _______ by volume.
a.23.5%
b.23.6%
c.19.5%
d.93%
a.23.5%
Compressed gas cylinders must meet which of the following criteria in order to
be acceptable for use in an acute health care facility?
a.Be appropriately identified by labels or stencils in accordance with CGA C-7
criteria
b.Be appropriately color coded in accordance with U.S.D.A. requirements
c.Be constructed in accordance with specifications and regulations of OSHA
d.Utilize gas specific CGA connections
a. Be appropriately identified by labels or stencils in accordance with CGA C-7 criteria
In those portions of the system intended to handle oxygen at pressures greater
than 350 psi, the interconnecting hose shall not contain __________ materials.
a.stainless steel
b.polymeric
c.copper
d.brass
b. polymeric
