MED GAS EXAM QUESTIONS WITH
ALL CORRECT ANSWERS!!
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 - ANSWERvisually 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. -
ANSWER32° 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 - ANSWERambulatory 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. -
ANSWER5.0
The reserve supply manifold of high pressure cylinders shall consist of
____________ connections. - ANSWERthree or more
Piping underground within buildings or embedded in concrete floors or walls shall be
installed in a - ANSWERcontinuous 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
- ANSWERnursing 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. - ANSWER1mg
A unit of pressure measurement with zero pressure as the base or reference
pressure - ANSWERPSIA
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 - ANSWERDental Office
, _________________________________ is an inorganic compound, that exists as a
gas at atmospheric pressure and temperature, possesses a
_________________smell. - ANSWERNitrous Oxide, Sweet
PVC dental vacuum piping shall be subjected to a vacuum test of not less than
________ in. gauge HgV. - ANSWER12 in. Gauge HgV
Manufactured assemblies shall have a flame spread rating of not greater than -
ANSWER200
Instrument air is designed to have an operating pressure of ____________________
psi gauge - ANSWER160-185
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. - ANSWER5ft
Medical air compressors shall be sufficient to serve the peak calculated demand with
the ____________ single compressor out of service. But in no case shall there be
fewer than ______ compressors. - ANSWERLargest, 2
The quality of medical air shall have less than ___________ PPM gaseous
hydrocarbons. - ANSWER25
Medical air compressor central supply systems shall be equipped to ensure the
delivery of compressed air with a maximum allowable _________ oil. -
ANSWERo.oo
If WAGD is joined to vacuum piping, it shall be connected at a minimum distance of
_________ feet from any vacuum inlet. - ANSWER5ft
The maximum support spacing for 2 ½" NPS plastic pipe is - ANSWER5ft
In medical air central supply systems, gaseous hydrocarbons shall be monitored on
a ___________________ basis. - ANSWERquarterly basis
If the interior surfaces of fitting sockets become contaminated prior to brazing, they
shall be recleaned for brazing with a clean, oil-free wire brush and ______________.
- ANSWERshall not result in grooving of surfaces to be joined.
All connections within Category 1 medical gas shall be ___________ to prevent
cross-connection with other piping systems. - ANSWERgas specific
Where operating pressure are above 185 psi, - ANSWERtype K ASTM B819 shall be
used
During and after installation, openings in the piping system shall be kept -
ANSWERplugged or capped
ALL CORRECT ANSWERS!!
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 - ANSWERvisually 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. -
ANSWER32° 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 - ANSWERambulatory 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. -
ANSWER5.0
The reserve supply manifold of high pressure cylinders shall consist of
____________ connections. - ANSWERthree or more
Piping underground within buildings or embedded in concrete floors or walls shall be
installed in a - ANSWERcontinuous 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
- ANSWERnursing 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. - ANSWER1mg
A unit of pressure measurement with zero pressure as the base or reference
pressure - ANSWERPSIA
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 - ANSWERDental Office
, _________________________________ is an inorganic compound, that exists as a
gas at atmospheric pressure and temperature, possesses a
_________________smell. - ANSWERNitrous Oxide, Sweet
PVC dental vacuum piping shall be subjected to a vacuum test of not less than
________ in. gauge HgV. - ANSWER12 in. Gauge HgV
Manufactured assemblies shall have a flame spread rating of not greater than -
ANSWER200
Instrument air is designed to have an operating pressure of ____________________
psi gauge - ANSWER160-185
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. - ANSWER5ft
Medical air compressors shall be sufficient to serve the peak calculated demand with
the ____________ single compressor out of service. But in no case shall there be
fewer than ______ compressors. - ANSWERLargest, 2
The quality of medical air shall have less than ___________ PPM gaseous
hydrocarbons. - ANSWER25
Medical air compressor central supply systems shall be equipped to ensure the
delivery of compressed air with a maximum allowable _________ oil. -
ANSWERo.oo
If WAGD is joined to vacuum piping, it shall be connected at a minimum distance of
_________ feet from any vacuum inlet. - ANSWER5ft
The maximum support spacing for 2 ½" NPS plastic pipe is - ANSWER5ft
In medical air central supply systems, gaseous hydrocarbons shall be monitored on
a ___________________ basis. - ANSWERquarterly basis
If the interior surfaces of fitting sockets become contaminated prior to brazing, they
shall be recleaned for brazing with a clean, oil-free wire brush and ______________.
- ANSWERshall not result in grooving of surfaces to be joined.
All connections within Category 1 medical gas shall be ___________ to prevent
cross-connection with other piping systems. - ANSWERgas specific
Where operating pressure are above 185 psi, - ANSWERtype K ASTM B819 shall be
used
During and after installation, openings in the piping system shall be kept -
ANSWERplugged or capped
