Med gas Refresher Exam
Questions and Answers
2026/2027
A local alarm shall activate alarm panels when the dew point on
instrument air systems pressure exceeds ______________ indicating
high dew point. - ANSWER ✔✔-22° F
Each brazed joint shall be - ANSWER ✔✔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. - ANSWER ✔✔32° F
Instrument air shall be dry to a dew point of - ANSWER ✔✔-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 -
ANSWER ✔✔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. - ANSWER ✔✔5.0
The reserve supply manifold of high pressure cylinders shall consist of
____________ connections. - ANSWER ✔✔three or more
Piping underground within buildings or embedded in concrete floors or
walls shall be installed in a - ANSWER ✔✔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 - ANSWER ✔✔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. - ANSWER ✔✔1mg
A unit of pressure measurement with zero pressure as the base or
reference pressure - ANSWER ✔✔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 - ANSWER
✔✔Dental Office
_________________________________ is an inorganic compound,
that exists as a gas at atmospheric pressure and temperature,
possesses a _________________smell. - ANSWER ✔✔Nitrous
Oxide, Sweet
PVC dental vacuum piping shall be subjected to a vacuum test of not
less than ________ in. gauge HgV. - ANSWER ✔✔12 in. Gauge HgV
Manufactured assemblies shall have a flame spread rating of not greater
than - ANSWER ✔✔200
Instrument air is designed to have an operating pressure of
____________________ psi gauge - ANSWER ✔✔160-185
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Answers
2026/2027
A local alarm shall activate alarm panels when the dew point on
instrument air systems pressure exceeds ______________ indicating
high dew point. - ANSWER ✔✔-22° F
Each brazed joint shall be - ANSWER ✔✔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. - ANSWER ✔✔32° F
Instrument air shall be dry to a dew point of - ANSWER ✔✔-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 -
ANSWER ✔✔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. - ANSWER ✔✔5.0
The reserve supply manifold of high pressure cylinders shall consist of
____________ connections. - ANSWER ✔✔three or more
Piping underground within buildings or embedded in concrete floors or
walls shall be installed in a - ANSWER ✔✔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 - ANSWER ✔✔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. - ANSWER ✔✔1mg
A unit of pressure measurement with zero pressure as the base or
reference pressure - ANSWER ✔✔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 - ANSWER
✔✔Dental Office
_________________________________ is an inorganic compound,
that exists as a gas at atmospheric pressure and temperature,
possesses a _________________smell. - ANSWER ✔✔Nitrous
Oxide, Sweet
PVC dental vacuum piping shall be subjected to a vacuum test of not
less than ________ in. gauge HgV. - ANSWER ✔✔12 in. Gauge HgV
Manufactured assemblies shall have a flame spread rating of not greater
than - ANSWER ✔✔200
Instrument air is designed to have an operating pressure of
____________________ psi gauge - ANSWER ✔✔160-185
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
