MED GAS STUDY GUIDE EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS
when is the initial pressure test conducted by the installer? - Answer-after blowdown of
the distribution piping
in those portions of the system intended to handle oxygen at pressures greater than 350
psi, the interconnecting hose shall not contain _______ materials. - Answer-polymeric
the master alarm system shall activate when the pressure in the main supply lines
increase or decrease by ___________ percent - Answer-20
when designing and constructing central supply systems, the storage shall _________ -
Answer-all of the above: have a minimum of two entry/exits if outdoors & secure all
cylinders & have a minimum 1-hour fire resistance rating
the medical air dew point high alarm from each compressor site will indicate at the
master alarm panels when the line pressure dew point is greater than _________ -
Answer-+35 degree F
which source shall NOT be used to power the venturri of a WAGD system - Answer-
medical air
for medical-surgical vacuum systems, piping shall be hard-drawn, seamless copper
tube type ___________ - Answer-any of the above: ASTM B88 & ASTM B819 & ASTM
B 280
which type of connectors shall connect the medical air compressors with their intake
and outlet piping? - Answer-flexible
medical air filters shall be sized for 100% of the system peak calculated demand and be
rated for a minimum of _______ efficiency at ___________ micron or greater. - Answer-
None of the above: 95% @ .5 or 98% @ .1 or 100% @ .1
where compressors that separate the oil containing section from the compression
chamber are used, each compressor shall be monitored for which of the following? -
Answer-***not sure on the answer***
joints shall be brazed within _______ hours after the surfaces are cleaned for brazing -
Answer-eight
,medical air compressors systems shall have a pressure relief valve set at ________
percent above line pressure - Answer-50
underground piping buried outside of buildings shall be installed below the local level of
frost penetration and shall be protected by a(n) __________ - Answer-Any of the above:
conduit & enclosure & cover
what is the standard gauge pressure (psi) for nitrogen gas service? - Answer-160-185
receivers for medical air shall be equipped with __________ - Answer-All of the above:
relief valves & automatic and manual drains & sight glass
a wireless communication device is employed in a medical gas or vacuum warning
system. which type of supervision is required for this device? - Answer-it will be
supervised such that failure of communication shall initiate an alarm
how many hours must the medical air compressor system be operating normally before
air quality test can be performed? - Answer-12
where medical gas systems operate at pressures other that the standard gauge
pressures, which of these is required to be listed on the station outlet identificaiton? -
Answer-Name of the gas & nonstandard operating pressure
brazing procedures and brazer performance for the installation of medical gas and
vacuum piping shall be qualified in accordance with __________ - Answer-ASME
Section IX
in a non-anesthetizing area, on which side of a zone valve shall the area alarm
pressure/vacuum sensor be located? - Answer-station outlet/inlet
medical air compressor air intake shall be located outdoors a minimum distance of
______________ above the ground level - Answer-20 feet
which of the following conditions must be met where medical gas and vacuum systems
are installed by non-certified personnel? - Answer-installation by anyone other than
6010 certified personnel is NOT permitted
central supply systems for medical vacuum shall be equipped with filtration sized for
_______ of peak calculated demand while one is isolated. - Answer-100%
wooden rack for cylinder storage may be permitted under which conditions? - Answer-
wooden racks are no longer permitted
NFPA 99 specifies that the medical gas piping system shall be protected against all
EXCEPT which of the following? - Answer-combustible liquids
, what percent of the zones shall be tested at the outlet most remote from the source to
verify the piping particulate test? - Answer-25%
which of these is an NFPA 99 requirement for the labeling of pipes in a medical gas
system? - Answer-color coding
a tool is allowed to be used by the installer to mechanically limit the makeup depth of
the fitting to be brazed. under what conditions is this method permitted for the
installation of medical gas piping? - Answer-where limited depth is not less than the
minimum cup depth per ANSI/ASME
liquid ring compressors, service water and seal water shall be treated to
control________ - Answer-All of the above: waterborne pathogens & chlorine & hyper
chlorination
liquid ring compressor system shall have a reserve medical air standby header (1HR) or
a __________ as backup. - Answer-manifold
the medical air intake shall be located a minimum of __________ from all vehicular
exhausts and noxious fumes. - Answer-25 ft
the medical air intake shall be located a minimum of ___________ from all doors,
windows or other openings in the building. - Answer-10 ft
in a facility where medical gas or vacuum systems are present and the failure of such
equipment or system is likely to cause imminent major injury or death to patients or
caregivers, the system shall be designed to meet which Category of requirements? -
Answer-1
category 1 medical-surgical vacuum sources shall, at a minimum, consist of
___________ or more vacuum pumps - Answer-two
who shall be responsible for developing an emergency plan in the event of medical air
loss at a category 2 facility? - Answer-facility staff
piping between the vacuum pump and the source shutoff valve shall be permitted to be
________________ - Answer-All of the above: brass pipe & galvanized steel pipe &
black steel pipe
computer systems used as a master alarm shall be continuously attended or shall
provide remote signaling of responsible parties through _______ - Answer-Any of the
above: pagers or telephone or cell phone
ASSE 6000 Annex J provides "Recommended Guidelines for Conducting Planned
Medical Gas Systems Shutdown and Temporary Backfeed" Annex J guidelines do NOT
QUESTIONS WITH COMPLETE
SOLUTIONS
when is the initial pressure test conducted by the installer? - Answer-after blowdown of
the distribution piping
in those portions of the system intended to handle oxygen at pressures greater than 350
psi, the interconnecting hose shall not contain _______ materials. - Answer-polymeric
the master alarm system shall activate when the pressure in the main supply lines
increase or decrease by ___________ percent - Answer-20
when designing and constructing central supply systems, the storage shall _________ -
Answer-all of the above: have a minimum of two entry/exits if outdoors & secure all
cylinders & have a minimum 1-hour fire resistance rating
the medical air dew point high alarm from each compressor site will indicate at the
master alarm panels when the line pressure dew point is greater than _________ -
Answer-+35 degree F
which source shall NOT be used to power the venturri of a WAGD system - Answer-
medical air
for medical-surgical vacuum systems, piping shall be hard-drawn, seamless copper
tube type ___________ - Answer-any of the above: ASTM B88 & ASTM B819 & ASTM
B 280
which type of connectors shall connect the medical air compressors with their intake
and outlet piping? - Answer-flexible
medical air filters shall be sized for 100% of the system peak calculated demand and be
rated for a minimum of _______ efficiency at ___________ micron or greater. - Answer-
None of the above: 95% @ .5 or 98% @ .1 or 100% @ .1
where compressors that separate the oil containing section from the compression
chamber are used, each compressor shall be monitored for which of the following? -
Answer-***not sure on the answer***
joints shall be brazed within _______ hours after the surfaces are cleaned for brazing -
Answer-eight
,medical air compressors systems shall have a pressure relief valve set at ________
percent above line pressure - Answer-50
underground piping buried outside of buildings shall be installed below the local level of
frost penetration and shall be protected by a(n) __________ - Answer-Any of the above:
conduit & enclosure & cover
what is the standard gauge pressure (psi) for nitrogen gas service? - Answer-160-185
receivers for medical air shall be equipped with __________ - Answer-All of the above:
relief valves & automatic and manual drains & sight glass
a wireless communication device is employed in a medical gas or vacuum warning
system. which type of supervision is required for this device? - Answer-it will be
supervised such that failure of communication shall initiate an alarm
how many hours must the medical air compressor system be operating normally before
air quality test can be performed? - Answer-12
where medical gas systems operate at pressures other that the standard gauge
pressures, which of these is required to be listed on the station outlet identificaiton? -
Answer-Name of the gas & nonstandard operating pressure
brazing procedures and brazer performance for the installation of medical gas and
vacuum piping shall be qualified in accordance with __________ - Answer-ASME
Section IX
in a non-anesthetizing area, on which side of a zone valve shall the area alarm
pressure/vacuum sensor be located? - Answer-station outlet/inlet
medical air compressor air intake shall be located outdoors a minimum distance of
______________ above the ground level - Answer-20 feet
which of the following conditions must be met where medical gas and vacuum systems
are installed by non-certified personnel? - Answer-installation by anyone other than
6010 certified personnel is NOT permitted
central supply systems for medical vacuum shall be equipped with filtration sized for
_______ of peak calculated demand while one is isolated. - Answer-100%
wooden rack for cylinder storage may be permitted under which conditions? - Answer-
wooden racks are no longer permitted
NFPA 99 specifies that the medical gas piping system shall be protected against all
EXCEPT which of the following? - Answer-combustible liquids
, what percent of the zones shall be tested at the outlet most remote from the source to
verify the piping particulate test? - Answer-25%
which of these is an NFPA 99 requirement for the labeling of pipes in a medical gas
system? - Answer-color coding
a tool is allowed to be used by the installer to mechanically limit the makeup depth of
the fitting to be brazed. under what conditions is this method permitted for the
installation of medical gas piping? - Answer-where limited depth is not less than the
minimum cup depth per ANSI/ASME
liquid ring compressors, service water and seal water shall be treated to
control________ - Answer-All of the above: waterborne pathogens & chlorine & hyper
chlorination
liquid ring compressor system shall have a reserve medical air standby header (1HR) or
a __________ as backup. - Answer-manifold
the medical air intake shall be located a minimum of __________ from all vehicular
exhausts and noxious fumes. - Answer-25 ft
the medical air intake shall be located a minimum of ___________ from all doors,
windows or other openings in the building. - Answer-10 ft
in a facility where medical gas or vacuum systems are present and the failure of such
equipment or system is likely to cause imminent major injury or death to patients or
caregivers, the system shall be designed to meet which Category of requirements? -
Answer-1
category 1 medical-surgical vacuum sources shall, at a minimum, consist of
___________ or more vacuum pumps - Answer-two
who shall be responsible for developing an emergency plan in the event of medical air
loss at a category 2 facility? - Answer-facility staff
piping between the vacuum pump and the source shutoff valve shall be permitted to be
________________ - Answer-All of the above: brass pipe & galvanized steel pipe &
black steel pipe
computer systems used as a master alarm shall be continuously attended or shall
provide remote signaling of responsible parties through _______ - Answer-Any of the
above: pagers or telephone or cell phone
ASSE 6000 Annex J provides "Recommended Guidelines for Conducting Planned
Medical Gas Systems Shutdown and Temporary Backfeed" Annex J guidelines do NOT
