Medical Gas Class – EXAM STUDY GUIDE
2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
One-hour of normal operation - ANSWER Where the instrument air systems are provided
with a standby header, the header shall have how many cylinders attached?
Fresh air duct, outside, equipment room - ANSWER Intake air for instrument air compressor
she'll be permitted to be drawn from what location?
True - ANSWER Instrument air sources shall be filtered with activated carbon filters and be
located upstream of the final line filters.
98%@.01 - ANSWER Final line filters for instrument air shall be rated for a minimum of
______efficiency at ______ micron.
True - ANSWER Final line filters for instrument air shall be equipped with a continuous visual
indicator showing the status of the filter element life.
Local - ANSWER What alarm salve the instrument air activate to indicate win or just before
the backup compressor if provided is in operation?
-22 degrees F - ANSWER Instrument air system shall activate the alarm system is on the
dewpoint system pressure exceeds ______.
, True - ANSWER Instrument air sources with standby headers shall activate an alarm at the
compressor site, a local signal at the header location and all master panels.
Reserve low, high dew point, reserve in use - ANSWER Instrument resources with standby
header shall be alarmed to indicate ______.
In secured area, locked or latched, labeled appropriately - ANSWER All vowels except zone
valve box assemblies Shall be ______.
Psychiatric or pediatric - ANSWER With the approval of the authority having jurisdiction, in
what area shall the shut off valve be permitted to be secured to prevent inappropriate access?
True - ANSWER New or replacement shut off valves for medical gas pressure piping system
shall be quarter turn, full ported, ball type valves.
Be cleaned for oxygen service, be three-piece construction, have extensions for brazing -
ANSWER Shutoff valves for positive pressure gases shall _____.
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.
2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
One-hour of normal operation - ANSWER Where the instrument air systems are provided
with a standby header, the header shall have how many cylinders attached?
Fresh air duct, outside, equipment room - ANSWER Intake air for instrument air compressor
she'll be permitted to be drawn from what location?
True - ANSWER Instrument air sources shall be filtered with activated carbon filters and be
located upstream of the final line filters.
98%@.01 - ANSWER Final line filters for instrument air shall be rated for a minimum of
______efficiency at ______ micron.
True - ANSWER Final line filters for instrument air shall be equipped with a continuous visual
indicator showing the status of the filter element life.
Local - ANSWER What alarm salve the instrument air activate to indicate win or just before
the backup compressor if provided is in operation?
-22 degrees F - ANSWER Instrument air system shall activate the alarm system is on the
dewpoint system pressure exceeds ______.
, True - ANSWER Instrument air sources with standby headers shall activate an alarm at the
compressor site, a local signal at the header location and all master panels.
Reserve low, high dew point, reserve in use - ANSWER Instrument resources with standby
header shall be alarmed to indicate ______.
In secured area, locked or latched, labeled appropriately - ANSWER All vowels except zone
valve box assemblies Shall be ______.
Psychiatric or pediatric - ANSWER With the approval of the authority having jurisdiction, in
what area shall the shut off valve be permitted to be secured to prevent inappropriate access?
True - ANSWER New or replacement shut off valves for medical gas pressure piping system
shall be quarter turn, full ported, ball type valves.
Be cleaned for oxygen service, be three-piece construction, have extensions for brazing -
ANSWER Shutoff valves for positive pressure gases shall _____.
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.
