MED GAS STUDY GUIDE A FINAL STUDY PAPER
2026 COMPLETE QUESTIONS AND ANSWERS
◉ an assembly of equipment that holds a capacity of oxygen greater
than ____________ is defined as a Bulk Oxygen System Answer: 20,000
ft^3
◉ what does it mean when equipment, material or services are
shows as "listed"? Answer: they are identified and published by an
organization that is acceptable to the authority having jurisdiction
◉ under which of these conditions shall instrument air reserve
header cylinders be permitted to be stored with the instrument air
compressor? Answer: the only motor-driven machinery in the rooms
is for the instrument air equipment.
◉ which type of copper tube hangers shall be used in a potentially
damp location? Answer: plastic coated
◉ stainless tubes may be joined by any methods EXCEPT which of
the following? Answer: Braze
◉ gas storage for Central Supply Systems required specialized
knowledge and consideration of information in the NFPA 55 for
,locating, installing and inspection of which of the following? Answer:
Bulk Gas
◉ all pressure relief valves shall be made of ______ brass, or bronze.
Answer: stainless steel
◉ the reserve header in a cryogenic liquid cylinder manifold system
shall have sufficient cylinder connections for one average day's
supply, but NOT fewer than how many connections? Answer: 3
◉ all fittings for medical gas work shall be kept separate from other
tools and kept free of grease or oil. If cleaned, only a degreaser such
as __________ is permitted. Answer: trisodium phosphate or sodium
carbonate with potable water
◉ station outlets/inlets shall be identified as to the ________ for the
specific gas or vacuum provided. Answer: name or chemical symbol
◉ when brazing, joints shall be continuously purges with oil-free,
dry nitrogen NF to prevent the formation of __________ on the inside
surfaces of the joint. Answer: copper oxide
◉ a bulk cryogenic supply contains parallel-piped duplex line
regulators. Which of the following is a requirement for controls for
line pressure? Answer: a balanced design
,◉ in an Emergency Oxygen Supply connection, the check valves are
required to be constructed of which of the following materials?
Answer: Brass or Bronze
◉ which of the following is a requirement for the configuration of a
zone valve? Answer: placed such that a wall intervenes between the
valves and the inlets/outlets they control
◉ which source shall NOT be used to power the venturi of a WAGD
system? Answer: medical air
◉ which of these is a requirement for each station inlet? Answer: a
primary valve
◉ which type of medical gas has an oxygen concentration > or = to
90% and < or = 96%? Answer: oxygen 93 USP
◉ a document in which the main text contains only mandatory
provisions. Non-mandatory provisions are located in the appendix
or annex. This is the NFPA 99 definition for which of the following?
Answer: Standard
◉ A ______________ system is an assembly of equipment such as
storage containers, pressure regulators, pressure relief devices,
, vaporizers, manifolds, and interconnecting piping that has a storage
capacity of more than 20,000 cubic feet (at normal temperature and
pressure), including unconnected reserves on hand at the site.
Answer: bulk oxygen
◉ the vertical pipes connecting the system main line(s) with the
branch lines on the various levels of the facility. This is the definition
of which of the following? Answer: risers
◉ which category 1 medical gas system includes medical support
gas and vacuum systems, which consist of two sources, including
controls, monitors and components? Answer: central supply
◉ dental air, used to operate dental devices, consists of which of the
following gases? Answer: compressed air and nitrogen
◉ dental vacuum and scavenging components of a medical gas
system are used for which of the following purposes? Answer: expel
nitrous oxide and oxygen
◉ who is the individual responsible for reviewing all inspection and
testing reports prior to the use of new, additional, renovated, or
temporary medical gas and vacuum installations? Answer:
responsible facility authority
2026 COMPLETE QUESTIONS AND ANSWERS
◉ an assembly of equipment that holds a capacity of oxygen greater
than ____________ is defined as a Bulk Oxygen System Answer: 20,000
ft^3
◉ what does it mean when equipment, material or services are
shows as "listed"? Answer: they are identified and published by an
organization that is acceptable to the authority having jurisdiction
◉ under which of these conditions shall instrument air reserve
header cylinders be permitted to be stored with the instrument air
compressor? Answer: the only motor-driven machinery in the rooms
is for the instrument air equipment.
◉ which type of copper tube hangers shall be used in a potentially
damp location? Answer: plastic coated
◉ stainless tubes may be joined by any methods EXCEPT which of
the following? Answer: Braze
◉ gas storage for Central Supply Systems required specialized
knowledge and consideration of information in the NFPA 55 for
,locating, installing and inspection of which of the following? Answer:
Bulk Gas
◉ all pressure relief valves shall be made of ______ brass, or bronze.
Answer: stainless steel
◉ the reserve header in a cryogenic liquid cylinder manifold system
shall have sufficient cylinder connections for one average day's
supply, but NOT fewer than how many connections? Answer: 3
◉ all fittings for medical gas work shall be kept separate from other
tools and kept free of grease or oil. If cleaned, only a degreaser such
as __________ is permitted. Answer: trisodium phosphate or sodium
carbonate with potable water
◉ station outlets/inlets shall be identified as to the ________ for the
specific gas or vacuum provided. Answer: name or chemical symbol
◉ when brazing, joints shall be continuously purges with oil-free,
dry nitrogen NF to prevent the formation of __________ on the inside
surfaces of the joint. Answer: copper oxide
◉ a bulk cryogenic supply contains parallel-piped duplex line
regulators. Which of the following is a requirement for controls for
line pressure? Answer: a balanced design
,◉ in an Emergency Oxygen Supply connection, the check valves are
required to be constructed of which of the following materials?
Answer: Brass or Bronze
◉ which of the following is a requirement for the configuration of a
zone valve? Answer: placed such that a wall intervenes between the
valves and the inlets/outlets they control
◉ which source shall NOT be used to power the venturi of a WAGD
system? Answer: medical air
◉ which of these is a requirement for each station inlet? Answer: a
primary valve
◉ which type of medical gas has an oxygen concentration > or = to
90% and < or = 96%? Answer: oxygen 93 USP
◉ a document in which the main text contains only mandatory
provisions. Non-mandatory provisions are located in the appendix
or annex. This is the NFPA 99 definition for which of the following?
Answer: Standard
◉ A ______________ system is an assembly of equipment such as
storage containers, pressure regulators, pressure relief devices,
, vaporizers, manifolds, and interconnecting piping that has a storage
capacity of more than 20,000 cubic feet (at normal temperature and
pressure), including unconnected reserves on hand at the site.
Answer: bulk oxygen
◉ the vertical pipes connecting the system main line(s) with the
branch lines on the various levels of the facility. This is the definition
of which of the following? Answer: risers
◉ which category 1 medical gas system includes medical support
gas and vacuum systems, which consist of two sources, including
controls, monitors and components? Answer: central supply
◉ dental air, used to operate dental devices, consists of which of the
following gases? Answer: compressed air and nitrogen
◉ dental vacuum and scavenging components of a medical gas
system are used for which of the following purposes? Answer: expel
nitrous oxide and oxygen
◉ who is the individual responsible for reviewing all inspection and
testing reports prior to the use of new, additional, renovated, or
temporary medical gas and vacuum installations? Answer:
responsible facility authority
