MED GAS 2026 FINAL TEST
QUESTIONS WIT CORRECT
ANSWERS
What does the term listed mean?
A) They are identified and published by an organization that is acceptable to the AHJ
B) They have been found suitable for the manufacturer's specifications
C) They have been approved and tested by a supervisor
D) A list that has been submitted to, and approved by, a verifier - Answer-A) They are
identified and published by an organization that is acceptable to the AHJ
Factory tubes on installed station outlets shall not be less than ___________ with 0.3
inch inside diameter.
A) 1/8"
B) 3/8"
C) ½/"
D) ⅒" - Answer-B) 3/8"
Where oxygen gas pressures will be greater than 435 PSI, hoses must not contain
A)Brass
B) Polymeric materials
C) Stainless steel
D) Copper - Answer-B) Polymeric materials
Pressure Relief valves shall meet which of the following requirements?
A) Constructed of brass or bronze
B) Shall have a relief setting of 5% higher than the working pressure of the gas it is
serving.
C)They may discharge into unoccupied rooms
D) They shall be designed for the specific gas - Answer-D) They shall be designed for
the specific gas
Which of the following is NOT considered a breach of the medical vacuum system?
A) Addition of a vacuum pump
B) Removal of a vacuum pump
C) Replacing component with same component
D) Testing with leak detectant - Answer-D) Testing with leak detectant
Under which of these conditions shall the instrument air reserve header cylinders be
permitted to be stored with the instrument air headers?
A) the mechanical 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 the instrument air equipment
D) the room is secured with lockable doors - Answer-C) the only motor driven
machinery in the room is for the instrument air equipment
Vertical pipes connecting the system main line with the branch lines on various level of
the facility is known as
A) Branch lines
B) Main lines
C) Vent lines
D) Risers - Answer-D) Risers
A ___________ system is an assembly of equipment such as storage containers,
pressure
regulators, pressure relief devices, vaporizers, manifolds, and interconnecting pipe that
has a storage capacity of more than 20,000 cubic feet (at normal temperature and
pressure), including unconnected reserves at the site.
A) Bulk oxygen
B) High pressure manifold
C) Micro bulk
D) Vacuum - Answer-A) Bulk oxygen
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 definition of
A) Guide
B) procedure
C) reference
D) standard - Answer-D) standard
Which source shall NOT be used to power a venturi?
A) Inert gas
B) instrument air
C) Medical air
D) water - Answer-C) Medical air
In an EOSC system, the check valves are required to be A)Brass, bronze, or stainless
steel
B) Brass or bronze
C) Supplied by the manufacturer
D) There are no requirements - Answer-B) Brass or bronze
Where liquid ring compressors are used, air receivers shall be equipped with a high
water level sensor that activates a (an) alarm
A) Area
B) local
C) Master
, D) Pressure - Answer-B) local
Instrument air systems will activate an alarm when the dew point exceeds
A) -22
B) -24
C) -26
D) -28 - Answer-A) -22
Brazing qualifications are good indefinitely unless the brazer does not braze under the
required procedure for how long?
A)6 months
B) 12 months
C) 18 months
D) 24 months - Answer-A) 6 months
Pipe must be labeled every
A) 10
B) 20
C) 30
D) 40 - Answer-B) 20
72. Medical gas installers must meet which of the following requirements?
A) ASME Section IX
B) ASSE Standard 6010
C) AWS B31.3
D) CGA C-7 - Answer-B) ASSE Standard 6010
73. Non-mandated fundamentals and recommendations for medical gas and vacuum
systems shall be located in the __________ of the NFPA 99.
A) 1 and 2cd chapters
B) annexes or appendices
C) qualification information
D) scope of the NFPA 99 - Answer-B) annexes or appendices
Oxygen cylinders must be prevented from reaching temperatures in excess of A.
A) 100
B) 125
C) 160
D) 190 - Answer-B) 125
When medical gas systems operate at other than standard pressures, what must be
listed on the station outlet/inlet?
A) Name of the gas
B) Nonstandard operation pressure
C) Toll free number to call for information
D) Both A and B - Answer-B) Nonstandard operation pressure
QUESTIONS WIT CORRECT
ANSWERS
What does the term listed mean?
A) They are identified and published by an organization that is acceptable to the AHJ
B) They have been found suitable for the manufacturer's specifications
C) They have been approved and tested by a supervisor
D) A list that has been submitted to, and approved by, a verifier - Answer-A) They are
identified and published by an organization that is acceptable to the AHJ
Factory tubes on installed station outlets shall not be less than ___________ with 0.3
inch inside diameter.
A) 1/8"
B) 3/8"
C) ½/"
D) ⅒" - Answer-B) 3/8"
Where oxygen gas pressures will be greater than 435 PSI, hoses must not contain
A)Brass
B) Polymeric materials
C) Stainless steel
D) Copper - Answer-B) Polymeric materials
Pressure Relief valves shall meet which of the following requirements?
A) Constructed of brass or bronze
B) Shall have a relief setting of 5% higher than the working pressure of the gas it is
serving.
C)They may discharge into unoccupied rooms
D) They shall be designed for the specific gas - Answer-D) They shall be designed for
the specific gas
Which of the following is NOT considered a breach of the medical vacuum system?
A) Addition of a vacuum pump
B) Removal of a vacuum pump
C) Replacing component with same component
D) Testing with leak detectant - Answer-D) Testing with leak detectant
Under which of these conditions shall the instrument air reserve header cylinders be
permitted to be stored with the instrument air headers?
A) the mechanical 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 the instrument air equipment
D) the room is secured with lockable doors - Answer-C) the only motor driven
machinery in the room is for the instrument air equipment
Vertical pipes connecting the system main line with the branch lines on various level of
the facility is known as
A) Branch lines
B) Main lines
C) Vent lines
D) Risers - Answer-D) Risers
A ___________ system is an assembly of equipment such as storage containers,
pressure
regulators, pressure relief devices, vaporizers, manifolds, and interconnecting pipe that
has a storage capacity of more than 20,000 cubic feet (at normal temperature and
pressure), including unconnected reserves at the site.
A) Bulk oxygen
B) High pressure manifold
C) Micro bulk
D) Vacuum - Answer-A) Bulk oxygen
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 definition of
A) Guide
B) procedure
C) reference
D) standard - Answer-D) standard
Which source shall NOT be used to power a venturi?
A) Inert gas
B) instrument air
C) Medical air
D) water - Answer-C) Medical air
In an EOSC system, the check valves are required to be A)Brass, bronze, or stainless
steel
B) Brass or bronze
C) Supplied by the manufacturer
D) There are no requirements - Answer-B) Brass or bronze
Where liquid ring compressors are used, air receivers shall be equipped with a high
water level sensor that activates a (an) alarm
A) Area
B) local
C) Master
, D) Pressure - Answer-B) local
Instrument air systems will activate an alarm when the dew point exceeds
A) -22
B) -24
C) -26
D) -28 - Answer-A) -22
Brazing qualifications are good indefinitely unless the brazer does not braze under the
required procedure for how long?
A)6 months
B) 12 months
C) 18 months
D) 24 months - Answer-A) 6 months
Pipe must be labeled every
A) 10
B) 20
C) 30
D) 40 - Answer-B) 20
72. Medical gas installers must meet which of the following requirements?
A) ASME Section IX
B) ASSE Standard 6010
C) AWS B31.3
D) CGA C-7 - Answer-B) ASSE Standard 6010
73. Non-mandated fundamentals and recommendations for medical gas and vacuum
systems shall be located in the __________ of the NFPA 99.
A) 1 and 2cd chapters
B) annexes or appendices
C) qualification information
D) scope of the NFPA 99 - Answer-B) annexes or appendices
Oxygen cylinders must be prevented from reaching temperatures in excess of A.
A) 100
B) 125
C) 160
D) 190 - Answer-B) 125
When medical gas systems operate at other than standard pressures, what must be
listed on the station outlet/inlet?
A) Name of the gas
B) Nonstandard operation pressure
C) Toll free number to call for information
D) Both A and B - Answer-B) Nonstandard operation pressure
