MED GAS UNITS 1-8 EXAM
QUESTIONS WITH CORRECT
ANSWERS
threaded end connections - Answer-In-line check valves are not required to have
_________.
gas-specific - Answer-Each station outlet/inlet for medical gasses and vacuums shall be
_________.
8 - Answer-The factory installed tubing on station outlets and inlets shall extend no
further than _________in. from the body of the terminal.
1/4 - Answer-Factory installed inlet tubing on the station shall not be less than
________NPS.
3/8 - Answer-Factory installed outlet tubing on station inlets shall not be less than
________ NPS.
80 - Answer-Station outlets that operate at a pressure in excess of _______ psi shall be
either D.I.S.S. or designed to relieve pressure prior to removal of adaptor.
1.0 - Answer-The manufacturer is allowed a decay of less than _______% in 24 hours
during the standing pressure test.
manufacturer - Answer-The ___________ shall provide documentation certifying the
performance and successful completion of all pressure testing for a manufactured
assembly.
1000 - Answer-Manufactured assemblies employing flexible hose shall have a minimum
burst pressure of ________ psi.
D.I.S.S. - Answer-Station outlets and inlets of manufactured assemblies that employ
hose or flexible connection to the piping system that are not fully and immediately
accessible shall use ______ connectors.
middle third - Answer-The scale range of positive pressure analog indicators shall have
the normal operating pressure fall within the ________ of the gauge scale.
5 - Answer-The accuracy of digital indicators shall be +- _________ % of the operating
pressure at which they are used.
, 30 - Answer-The scale range of vacuum indicators shall be 0 to _____ in. HgV.
gas specific demand check fitting - Answer-To facilitate service, testing, or replacement,
all pressure switches and mainline gauges downstream of the source valve shall be
provided with a __________.
zone valve pressure - Answer-Gas-specific demand check fittings shall not be required
on _______ indicators.
2 - Answer-Category 1 medical-surgical vacuum sources shall, at a minimum, consist of
______ or more vacuum pumps.
backflow - Answer-Category 1 medical-surgical vacuum sources shall consist of an
automatic means to prevent ________ from any on-cycle vacuum pump through any
off-cycle vacuum pump.
plastic (PVC) - Answer-Piping between the vacuum pump and the source shutoff valve
shall be permitted to be all of the following material except __________.
flexible - Answer-_________ connecters shall connect the vacuum pumps with their
intake and outlet piping.
30 - Answer-Vacuum receivers shall be capable of withstanding a gauge vacuum of
_____ in. of HgV.
any method to ensure the continuation of service - Answer-A medical-surgical vacuum
receiver shall be made serviceable by ____________.
automatically - Answer-When a medical-surgical vacuum source in operation is
incapable of adequately maintaining the required vacuum, additional pumps shall be
______ activated.
25 - Answer-The vacuum exhaust shall discharge a minimum of _____ ft. from any
door, window, air intake, or place of public assembly.
any non-corroding - Answer-A medical-surgical vacuum exhaust shall be turned down
and screened. The screening shall be fabricated using _________ material.
minimize back pressure - Answer-Multiple vacuum pumps shall be permitted to be
joined together to one common exhaust provided the common exhaust is sized to
______.
grooved joint - Answer-Vacuum exhaust from multiple pumps joined together to one
common exhaust shall be permitted provided each pump can be isolated. The pumps
QUESTIONS WITH CORRECT
ANSWERS
threaded end connections - Answer-In-line check valves are not required to have
_________.
gas-specific - Answer-Each station outlet/inlet for medical gasses and vacuums shall be
_________.
8 - Answer-The factory installed tubing on station outlets and inlets shall extend no
further than _________in. from the body of the terminal.
1/4 - Answer-Factory installed inlet tubing on the station shall not be less than
________NPS.
3/8 - Answer-Factory installed outlet tubing on station inlets shall not be less than
________ NPS.
80 - Answer-Station outlets that operate at a pressure in excess of _______ psi shall be
either D.I.S.S. or designed to relieve pressure prior to removal of adaptor.
1.0 - Answer-The manufacturer is allowed a decay of less than _______% in 24 hours
during the standing pressure test.
manufacturer - Answer-The ___________ shall provide documentation certifying the
performance and successful completion of all pressure testing for a manufactured
assembly.
1000 - Answer-Manufactured assemblies employing flexible hose shall have a minimum
burst pressure of ________ psi.
D.I.S.S. - Answer-Station outlets and inlets of manufactured assemblies that employ
hose or flexible connection to the piping system that are not fully and immediately
accessible shall use ______ connectors.
middle third - Answer-The scale range of positive pressure analog indicators shall have
the normal operating pressure fall within the ________ of the gauge scale.
5 - Answer-The accuracy of digital indicators shall be +- _________ % of the operating
pressure at which they are used.
, 30 - Answer-The scale range of vacuum indicators shall be 0 to _____ in. HgV.
gas specific demand check fitting - Answer-To facilitate service, testing, or replacement,
all pressure switches and mainline gauges downstream of the source valve shall be
provided with a __________.
zone valve pressure - Answer-Gas-specific demand check fittings shall not be required
on _______ indicators.
2 - Answer-Category 1 medical-surgical vacuum sources shall, at a minimum, consist of
______ or more vacuum pumps.
backflow - Answer-Category 1 medical-surgical vacuum sources shall consist of an
automatic means to prevent ________ from any on-cycle vacuum pump through any
off-cycle vacuum pump.
plastic (PVC) - Answer-Piping between the vacuum pump and the source shutoff valve
shall be permitted to be all of the following material except __________.
flexible - Answer-_________ connecters shall connect the vacuum pumps with their
intake and outlet piping.
30 - Answer-Vacuum receivers shall be capable of withstanding a gauge vacuum of
_____ in. of HgV.
any method to ensure the continuation of service - Answer-A medical-surgical vacuum
receiver shall be made serviceable by ____________.
automatically - Answer-When a medical-surgical vacuum source in operation is
incapable of adequately maintaining the required vacuum, additional pumps shall be
______ activated.
25 - Answer-The vacuum exhaust shall discharge a minimum of _____ ft. from any
door, window, air intake, or place of public assembly.
any non-corroding - Answer-A medical-surgical vacuum exhaust shall be turned down
and screened. The screening shall be fabricated using _________ material.
minimize back pressure - Answer-Multiple vacuum pumps shall be permitted to be
joined together to one common exhaust provided the common exhaust is sized to
______.
grooved joint - Answer-Vacuum exhaust from multiple pumps joined together to one
common exhaust shall be permitted provided each pump can be isolated. The pumps
