MEDICAL GAS CLASS REVISION
QUESTIONS WITH CORRECT
ANSWERS
Source - Answer-A shut off valve shall be placed at the immediate connection of each
source system to the distribution piping system. What is the name given to the valve?
Main - Answer-A shut off valve shall be provided in the main supply line when the
source valve is not accessible from within the building being served. What is the name
given to this valve?
False - Answer-The mainline valve shall be accessible to other than authorized
personnel to facilitate periodic testing.
False - Answer-Riser valves shall be accessible, unobstructed, and shall not be
permitted to be located above ceiling's.
Service - Answer-What is the name given to the shut off valve installed on all lateral
branch piping from a main or riser?
True - Answer-Regardless of how many zone valve boxes are installing a lateral branch
off a riser, only one service Valve shall be required for each branch.
Zone - Answer-What valves shall be readily operable from a standing position in the
Corridor on the same floor they serve?
Zone valve - Answer-Immediately outside each vital life-support, critical care in
anesthizing location for emergency situations, there shall be located a(n) ______ each
medical gas, vacuum and WAGD system.
Gas specific - Answer-Each station outlet/inlet for medical gas or vacuum shall be
________.
8" - Answer-The factory installed tubing on station outlet/inlet shallow extend no further
than ______ from the body of the terminal.
1/4" - Answer-Factory installed tubing on station outlets shall not be less than ______
NPS.
80 psi - Answer-Station outlets that operate at a pressure in excess of _____ shall be
either DISS or be designed to relieve pressure prior to removal of the adapter.
, D.I.S.S. - Answer-Station outlets/inlets of manufactured assemblies that employee hose
or flexible connections to the piping system that are not fully and immediately
accessible, shall use ______ connectors.
2/3 - Answer-The scale range of positive pressure analog indicator shall have a normal
reading fall within the_______ percentage of the gauge scale
0-30" - Answer-The scale range of vacuum indicators shall be ______ gauge Hg.
1% - Answer-The rated accuracy of pressure indicators used for testing shall be ______
(full scale) or better at the point of reading.
Demand check fitting - Answer-To facilitate service, testing replacement, all pressure
switch is in mainline gauges downstream of the source Valve shall be provided with a
______.
False - Answer-Since dewpoint and carbon monoxide monitors are located upstream of
the source valve, demand check fittings are not required.
Visual, audible - Answer-All master, area and local alarm system shall include separate
______ and _____ indicators for each condition monitored
Cancelable - Answer-All medical gas alarm system shall have a(n) _______ audible
indication for each condition monitored
False - Answer-All alarm system shall be tested monthly for lamp or LED failure
Re-initiation of the audible signal - Answer-What is required of the alarm system at
another alarm condition occurs while they audible alarm is silenced
Local, area, master - Answer-The pressure in the mainline of each medical gas system,
the operation and condition of the source of supply in the reserve source if any shall be
monitored at the ______ alarm
Area of continuous observation - Answer-One of the master alarm panel shall be
located in the office or workspace of the individual responsible for the maintenance of a
medical gas piping system. Where shall be another alarm be located?
False - Answer-The master alarm system shall consist of two or more alarm panels, a
centralized computer system shall not be permitted to be used as a substitute for one of
the required master alarm panels.
Master - Answer-When I medical gas system is supplied by a manifold or other
alternating type bulk system, which alarm systems shall activate indicating win, or just
before, changeover occurs?
QUESTIONS WITH CORRECT
ANSWERS
Source - Answer-A shut off valve shall be placed at the immediate connection of each
source system to the distribution piping system. What is the name given to the valve?
Main - Answer-A shut off valve shall be provided in the main supply line when the
source valve is not accessible from within the building being served. What is the name
given to this valve?
False - Answer-The mainline valve shall be accessible to other than authorized
personnel to facilitate periodic testing.
False - Answer-Riser valves shall be accessible, unobstructed, and shall not be
permitted to be located above ceiling's.
Service - Answer-What is the name given to the shut off valve installed on all lateral
branch piping from a main or riser?
True - Answer-Regardless of how many zone valve boxes are installing a lateral branch
off a riser, only one service Valve shall be required for each branch.
Zone - Answer-What valves shall be readily operable from a standing position in the
Corridor on the same floor they serve?
Zone valve - Answer-Immediately outside each vital life-support, critical care in
anesthizing location for emergency situations, there shall be located a(n) ______ each
medical gas, vacuum and WAGD system.
Gas specific - Answer-Each station outlet/inlet for medical gas or vacuum shall be
________.
8" - Answer-The factory installed tubing on station outlet/inlet shallow extend no further
than ______ from the body of the terminal.
1/4" - Answer-Factory installed tubing on station outlets shall not be less than ______
NPS.
80 psi - Answer-Station outlets that operate at a pressure in excess of _____ shall be
either DISS or be designed to relieve pressure prior to removal of the adapter.
, D.I.S.S. - Answer-Station outlets/inlets of manufactured assemblies that employee hose
or flexible connections to the piping system that are not fully and immediately
accessible, shall use ______ connectors.
2/3 - Answer-The scale range of positive pressure analog indicator shall have a normal
reading fall within the_______ percentage of the gauge scale
0-30" - Answer-The scale range of vacuum indicators shall be ______ gauge Hg.
1% - Answer-The rated accuracy of pressure indicators used for testing shall be ______
(full scale) or better at the point of reading.
Demand check fitting - Answer-To facilitate service, testing replacement, all pressure
switch is in mainline gauges downstream of the source Valve shall be provided with a
______.
False - Answer-Since dewpoint and carbon monoxide monitors are located upstream of
the source valve, demand check fittings are not required.
Visual, audible - Answer-All master, area and local alarm system shall include separate
______ and _____ indicators for each condition monitored
Cancelable - Answer-All medical gas alarm system shall have a(n) _______ audible
indication for each condition monitored
False - Answer-All alarm system shall be tested monthly for lamp or LED failure
Re-initiation of the audible signal - Answer-What is required of the alarm system at
another alarm condition occurs while they audible alarm is silenced
Local, area, master - Answer-The pressure in the mainline of each medical gas system,
the operation and condition of the source of supply in the reserve source if any shall be
monitored at the ______ alarm
Area of continuous observation - Answer-One of the master alarm panel shall be
located in the office or workspace of the individual responsible for the maintenance of a
medical gas piping system. Where shall be another alarm be located?
False - Answer-The master alarm system shall consist of two or more alarm panels, a
centralized computer system shall not be permitted to be used as a substitute for one of
the required master alarm panels.
Master - Answer-When I medical gas system is supplied by a manifold or other
alternating type bulk system, which alarm systems shall activate indicating win, or just
before, changeover occurs?
