MED GAS STUDY GUIDE A ACTUAL PAPER
2026 QUESTIONS WITH SOLUTIONS GRADED
A+
◉ In those portions of systems intended to handle oxygen at
pressures greater than 350 psi the interconnecting hose shall NOT
contain ________ materials? Answer: Polymeric
◉ In a Category 1 Dental and Gas Vacuum Piping system, which of
the following is an NFPA 99 requirement for the labeling of pipes?
Answer: Color coding & non-standard pressure
◉ Which of the following treatments shall be performed before
brazing cut ends of a tube to be installed in a medical gas piping
system? Answer: Cut ends shall be rolled smooth or deburred
◉ Manifolds for gas cylinders shall actuate a(an) _______ signal and
shall activate an indicator at all _______ alarm panels to indicate when
or just before changeover from one header to the other. Answer:
Local, master
◉ In a non-anesthetizing area, on which side of a zone valve shall the
pressure/vacuum sensor be located? Answer: Station outlet/inlet
,◉ What is the purpose of using an oxygen analyzer during the piping
purge prior to brazing? Answer: Assure that all ambient air has been
removed from the pipeline
◉ A medical gas master or area alarm panel shall be set to actuate
a(an) _____ indicator when the communication with an alarm-
initiating device is disconnected. Answer: Audible and visual
◉ When an EOSC becomes the temporary supply source, a facility
will monitor the system by use of which of the following? Answer:
Providing four connection points to both master alarms
◉ Which of the following conditions must be met where medical gas
and vacuum systems are installed by non-certified personnel?
Answer: installation by anyone other than 6010 certified personnel
is NOT permitted
◉ Which of the following systems shall NOT be permitted to be
located in an outdoor enclosure? Answer: Medical air compressor
supply sources
◉ Metallic flexible joints are being used in the pipeline for vibration
control. Which of the following is NOT required of such joints?
Answer: suitable for service at 150 psig or above
,◉ who shall witness the installer-performed standing vacuum test?
Answer: the authority having jurisdiction, or its designee
◉ the medical air compressor intake shall be located a minimum of
how many feet from any exhaust or plumbing vents? Answer: 25 feet
◉ the gas produced by evaporation from the secondary header in a
cryogenic liquid cylinder system shall enter the supply system
________ of the final line regulator. Answer: upstream
◉ with the approval of the Authority Having Jurisdiction, in which
areas shall the zone valves be permitted to be secured to prevent
inappropriate access? Answer: pediatric
◉ factory installed inlet tubes on station outlets shall be NOT less
than __________with 0.3 inch minimum inside diameter. Answer: NPS
1/4, 3/8 in. O.D.
◉ which of these operations would not breach the vacuum system?
Answer: testing a system component with a leak detector solution
◉ except for valves in zone valve boxes, all valves shall be located in
secured areas such as locked pipe chases, or be __________. Answer:
latched or locked in operation position
, ◉ medical gas Central Supply systems are NOT permitted to be
located where? Answer: in an unlocked location
◉ fittings, valves, and other components for field-installed positive
pressure distribution systems shall be ________ until prepared for
installation. Answer: delivered sealed, labeled, and kept sealed
◉ vacuum piping for __________ shall be connected separately from
the medical surgical system directly to the receiver tank through its
own isolation valve and fluid trap located at the receiver. Answer: a
teaching laboratory
◉ NFPA 99 specifies that the medical gas piping system shall be
protected against all EXCEPT which of the following? Answer:
exposure to liquids
◉ category 1 support gasses carry which of these additional
hazards? Answer: higher pressures
◉ manufactured assemblies for medical gas systems employing
flexible hose shall use flexible connectors with a minimum burst
gauge pressure of how many psi? Answer: 1000
2026 QUESTIONS WITH SOLUTIONS GRADED
A+
◉ In those portions of systems intended to handle oxygen at
pressures greater than 350 psi the interconnecting hose shall NOT
contain ________ materials? Answer: Polymeric
◉ In a Category 1 Dental and Gas Vacuum Piping system, which of
the following is an NFPA 99 requirement for the labeling of pipes?
Answer: Color coding & non-standard pressure
◉ Which of the following treatments shall be performed before
brazing cut ends of a tube to be installed in a medical gas piping
system? Answer: Cut ends shall be rolled smooth or deburred
◉ Manifolds for gas cylinders shall actuate a(an) _______ signal and
shall activate an indicator at all _______ alarm panels to indicate when
or just before changeover from one header to the other. Answer:
Local, master
◉ In a non-anesthetizing area, on which side of a zone valve shall the
pressure/vacuum sensor be located? Answer: Station outlet/inlet
,◉ What is the purpose of using an oxygen analyzer during the piping
purge prior to brazing? Answer: Assure that all ambient air has been
removed from the pipeline
◉ A medical gas master or area alarm panel shall be set to actuate
a(an) _____ indicator when the communication with an alarm-
initiating device is disconnected. Answer: Audible and visual
◉ When an EOSC becomes the temporary supply source, a facility
will monitor the system by use of which of the following? Answer:
Providing four connection points to both master alarms
◉ Which of the following conditions must be met where medical gas
and vacuum systems are installed by non-certified personnel?
Answer: installation by anyone other than 6010 certified personnel
is NOT permitted
◉ Which of the following systems shall NOT be permitted to be
located in an outdoor enclosure? Answer: Medical air compressor
supply sources
◉ Metallic flexible joints are being used in the pipeline for vibration
control. Which of the following is NOT required of such joints?
Answer: suitable for service at 150 psig or above
,◉ who shall witness the installer-performed standing vacuum test?
Answer: the authority having jurisdiction, or its designee
◉ the medical air compressor intake shall be located a minimum of
how many feet from any exhaust or plumbing vents? Answer: 25 feet
◉ the gas produced by evaporation from the secondary header in a
cryogenic liquid cylinder system shall enter the supply system
________ of the final line regulator. Answer: upstream
◉ with the approval of the Authority Having Jurisdiction, in which
areas shall the zone valves be permitted to be secured to prevent
inappropriate access? Answer: pediatric
◉ factory installed inlet tubes on station outlets shall be NOT less
than __________with 0.3 inch minimum inside diameter. Answer: NPS
1/4, 3/8 in. O.D.
◉ which of these operations would not breach the vacuum system?
Answer: testing a system component with a leak detector solution
◉ except for valves in zone valve boxes, all valves shall be located in
secured areas such as locked pipe chases, or be __________. Answer:
latched or locked in operation position
, ◉ medical gas Central Supply systems are NOT permitted to be
located where? Answer: in an unlocked location
◉ fittings, valves, and other components for field-installed positive
pressure distribution systems shall be ________ until prepared for
installation. Answer: delivered sealed, labeled, and kept sealed
◉ vacuum piping for __________ shall be connected separately from
the medical surgical system directly to the receiver tank through its
own isolation valve and fluid trap located at the receiver. Answer: a
teaching laboratory
◉ NFPA 99 specifies that the medical gas piping system shall be
protected against all EXCEPT which of the following? Answer:
exposure to liquids
◉ category 1 support gasses carry which of these additional
hazards? Answer: higher pressures
◉ manufactured assemblies for medical gas systems employing
flexible hose shall use flexible connectors with a minimum burst
gauge pressure of how many psi? Answer: 1000
