Med Gas Exam Questions with All Correct || || || || || || ||
Verified Answers 2026 Marking Scheme || || || || ||
New Update ||
A local alarm shall activate alarm panels when the dew point on instrument air systems pressure
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exceeds ______________ indicating high dew point. - ✔✔-22° F
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Each brazed joint shall be - ✔✔visually examined after the cleaning of the outside of the joint
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Medical air central supply systems shall include air dryer(s) that maintains a maximum dew point
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of _________ to 50-55 psi at any level of demand. - ✔✔32° F
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Instrument air shall be dry to a dew point of - ✔✔-40° F || || || || || || || || || || || ||
A building or portion thereof used to provide services or treatment simultaneously to four or more
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patients on an outpatient basis, where the patients are incapable of taking action for self-
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preservation under emergency conditions without the assistance of others is a - ✔✔ambulatory
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health care center || ||
During the outlet flow test, nitrogen outlets shall deliver __________ SCFM with a pressure drop
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of no more than 5 psi gage and a static pressure of 160 - 180 psi. - ✔✔5.0
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The reserve supply manifold of high pressure cylinders shall consist of ____________
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connections. - ✔✔three or more || || || ||
Piping underground within buildings or embedded in concrete floors or walls shall be installed in
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a - ✔✔continuous conduit
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, A building or portion of a building used on a 24 hour basis for the housing of four or more persons
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who because of mental or physical incapacity, might be unable to provide for their own needs and
|| || || || || || || || || || || || || || || || ||
safety without the assistance of another person, is a - ✔✔nursing home
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For each positive-pressure gas system, the cleanliness of the piping system shall be verified by a
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piping particulate test. The gas shall be filtered and shall accrue no more than __________ of
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matter from any outlet tested. - ✔✔1mg
|| || || || || ||
A unit of pressure measurement with zero pressure as the base or reference pressure - ✔✔PSIA
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A building or portion of a building used for minor treatments under the continuous supervision of
|| || || || || || || || || || || || || || || ||
a dental professional and no overnight stays for patients or no 24 hours operations take place is a -
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✔✔Dental Office ||
_________________________________ is an inorganic compound, that exists as a gas at || || || || || || || || || || ||
atmospheric pressure and temperature, possesses a _________________smell. - ✔✔Nitrous
|| || || || || || || || ||
Oxide, Sweet ||
PVC dental vacuum piping shall be subjected to a vacuum test of not less than ________ in.
|| || || || || || || || || || || || || || || || ||
gauge HgV. - ✔✔12 in. Gauge HgV
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Manufactured assemblies shall have a flame spread rating of not greater than - ✔✔200 || || || || || || || || || || || || ||
Instrument air is designed to have an operating pressure of ____________________ psi gauge -
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✔✔160-185
Flexible connectors of other than all-metal construction that connect manifolds to the gas
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distribution piping shall not exceed ______ feet in length and shall not penetrate walls, floors,
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ceilings, or partitions. - ✔✔5ft || || || ||
Verified Answers 2026 Marking Scheme || || || || ||
New Update ||
A local alarm shall activate alarm panels when the dew point on instrument air systems pressure
|| || || || || || || || || || || || || || || ||
exceeds ______________ indicating high dew point. - ✔✔-22° F
|| || || || || || || ||
Each brazed joint shall be - ✔✔visually examined after the cleaning of the outside of the joint
|| || || || || || || || || || || || || || || ||
Medical air central supply systems shall include air dryer(s) that maintains a maximum dew point
|| || || || || || || || || || || || || || ||
of _________ to 50-55 psi at any level of demand. - ✔✔32° F
|| || || || || || || || || || || ||
Instrument air shall be dry to a dew point of - ✔✔-40° F || || || || || || || || || || || ||
A building or portion thereof used to provide services or treatment simultaneously to four or more
|| || || || || || || || || || || || || || ||
patients on an outpatient basis, where the patients are incapable of taking action for self-
|| || || || || || || || || || || || || || ||
preservation under emergency conditions without the assistance of others is a - ✔✔ambulatory
|| || || || || || || || || || || || ||
health care center || ||
During the outlet flow test, nitrogen outlets shall deliver __________ SCFM with a pressure drop
|| || || || || || || || || || || || || || ||
of no more than 5 psi gage and a static pressure of 160 - 180 psi. - ✔✔5.0
|| || || || || || || || || || || || || || || || ||
The reserve supply manifold of high pressure cylinders shall consist of ____________
|| || || || || || || || || || || ||
connections. - ✔✔three or more || || || ||
Piping underground within buildings or embedded in concrete floors or walls shall be installed in
|| || || || || || || || || || || || || || ||
a - ✔✔continuous conduit
|| || ||
, A building or portion of a building used on a 24 hour basis for the housing of four or more persons
|| || || || || || || || || || || || || || || || || || || ||
who because of mental or physical incapacity, might be unable to provide for their own needs and
|| || || || || || || || || || || || || || || || ||
safety without the assistance of another person, is a - ✔✔nursing home
|| || || || || || || || || || || ||
For each positive-pressure gas system, the cleanliness of the piping system shall be verified by a
|| || || || || || || || || || || || || || || ||
piping particulate test. The gas shall be filtered and shall accrue no more than __________ of
|| || || || || || || || || || || || || || || ||
matter from any outlet tested. - ✔✔1mg
|| || || || || ||
A unit of pressure measurement with zero pressure as the base or reference pressure - ✔✔PSIA
|| || || || || || || || || || || || || || ||
A building or portion of a building used for minor treatments under the continuous supervision of
|| || || || || || || || || || || || || || || ||
a dental professional and no overnight stays for patients or no 24 hours operations take place is a -
|| || || || || || || || || || || || || || || || || || ||
✔✔Dental Office ||
_________________________________ is an inorganic compound, that exists as a gas at || || || || || || || || || || ||
atmospheric pressure and temperature, possesses a _________________smell. - ✔✔Nitrous
|| || || || || || || || ||
Oxide, Sweet ||
PVC dental vacuum piping shall be subjected to a vacuum test of not less than ________ in.
|| || || || || || || || || || || || || || || || ||
gauge HgV. - ✔✔12 in. Gauge HgV
|| || || || || ||
Manufactured assemblies shall have a flame spread rating of not greater than - ✔✔200 || || || || || || || || || || || || ||
Instrument air is designed to have an operating pressure of ____________________ psi gauge -
|| || || || || || || || || || || || || ||
✔✔160-185
Flexible connectors of other than all-metal construction that connect manifolds to the gas
|| || || || || || || || || || || || ||
distribution piping shall not exceed ______ feet in length and shall not penetrate walls, floors,
|| || || || || || || || || || || || || || ||
ceilings, or partitions. - ✔✔5ft || || || ||
