Medical Gas Class Exam
Questions With All Correct
Answers Rated A+
Category 1 medical -surgical vacuum sources shall, at minimum, consist of ______
or more vacuum pumps - CORRECT ANSWER-Two
Category 1 medical surgical vacuum sources shall consist of an automatic means
too prevent _____ through any off -cycle vacuum pump - CORRECT ANSWER-
Backflow
Piping between the vacuum pump and the source shutoff valve shall be permitted
to be stainless, galvanized, or black steel pipe - CORRECT ANSWER-True
Vacuum receiver shall be capable of withstanding a gauge vacuum of ______ of
mercury - CORRECT ANSWER-30"
The medical surgical vacuum receiver shall be made serviceable without shutting
down the system by _______ - CORRECT ANSWER-Any method to ensure
continuation service
,When the medical surgical I'm an operation is incapable of adequately maintaining
a required vacuum, additional pump shall be _______ activated - CORRECT
ANSWER-Automatically
The medical surgical vacuum exhaust shall be turned down and screened. The
screened shall be fabricated using what type of material? - CORRECT ANSWER-
Any non-corroding material
Multiple vacuum pumps shall be permitted to be join together to come one
common exhaust provided the common exhaust is size to ______. - CORRECT
ANSWER-Minimize back pressure
Vacuum exhaust from multiple pumps join together to one common exhaust shall
be permitted provided each pump can be isolated by a _____. - CORRECT
ANSWER-Blind flange, manual valve, check valve
Category 1 medical-surgical vacuum systems shall activate which alarm when the
backup or lag pump is running? - CORRECT ANSWER-Local
A level 1 dedicated WAGD source shall consist of ______ or more producers,
each shall be sufficient to serve the peak calculated demand. - CORRECT
ANSWER-Two
What source shall not be used to power the venturi of a WAGD system? -
CORRECT ANSWER-Medical air
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
, WAGD vacuum producers designed for operation at vacuums below ____ Hg/V
shall be used only for WAGD service and not employed for other services. -
CORRECT ANSWER-5"
A WAGD source system shall activate the ____ alarm when the backup or lag
producer is running. - CORRECT ANSWER-Local
Additional WAGD producers shall be ________ activated when the producer(s) in
operation is incapable of maintaining required vacuum. - CORRECT ANSWER-
Automatically
Medical air supply systems shall be required to _____. - CORRECT ANSWER-
Meet the requirements of medical air USP, have no detectable liquid hydrocarbons,
have less than 25 ppm gaseous hydrocarbons
Medical air sources shall be used only for _____. - CORRECT ANSWER-Human
respiratory applications
Medical air compressor systems shall have a(n) ______ means to prevent back
flow through all off-cycle compressors - CORRECT ANSWER-Automatic
True - CORRECT ANSWER-An existing system that is not in strict compliance
with the provisions of this standard shall be permitted to be continued in use as
long as the authority having jurisdiction has determined that such use does not
constitute a distinct hazard to life
Questions With All Correct
Answers Rated A+
Category 1 medical -surgical vacuum sources shall, at minimum, consist of ______
or more vacuum pumps - CORRECT ANSWER-Two
Category 1 medical surgical vacuum sources shall consist of an automatic means
too prevent _____ through any off -cycle vacuum pump - CORRECT ANSWER-
Backflow
Piping between the vacuum pump and the source shutoff valve shall be permitted
to be stainless, galvanized, or black steel pipe - CORRECT ANSWER-True
Vacuum receiver shall be capable of withstanding a gauge vacuum of ______ of
mercury - CORRECT ANSWER-30"
The medical surgical vacuum receiver shall be made serviceable without shutting
down the system by _______ - CORRECT ANSWER-Any method to ensure
continuation service
,When the medical surgical I'm an operation is incapable of adequately maintaining
a required vacuum, additional pump shall be _______ activated - CORRECT
ANSWER-Automatically
The medical surgical vacuum exhaust shall be turned down and screened. The
screened shall be fabricated using what type of material? - CORRECT ANSWER-
Any non-corroding material
Multiple vacuum pumps shall be permitted to be join together to come one
common exhaust provided the common exhaust is size to ______. - CORRECT
ANSWER-Minimize back pressure
Vacuum exhaust from multiple pumps join together to one common exhaust shall
be permitted provided each pump can be isolated by a _____. - CORRECT
ANSWER-Blind flange, manual valve, check valve
Category 1 medical-surgical vacuum systems shall activate which alarm when the
backup or lag pump is running? - CORRECT ANSWER-Local
A level 1 dedicated WAGD source shall consist of ______ or more producers,
each shall be sufficient to serve the peak calculated demand. - CORRECT
ANSWER-Two
What source shall not be used to power the venturi of a WAGD system? -
CORRECT ANSWER-Medical air
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
, WAGD vacuum producers designed for operation at vacuums below ____ Hg/V
shall be used only for WAGD service and not employed for other services. -
CORRECT ANSWER-5"
A WAGD source system shall activate the ____ alarm when the backup or lag
producer is running. - CORRECT ANSWER-Local
Additional WAGD producers shall be ________ activated when the producer(s) in
operation is incapable of maintaining required vacuum. - CORRECT ANSWER-
Automatically
Medical air supply systems shall be required to _____. - CORRECT ANSWER-
Meet the requirements of medical air USP, have no detectable liquid hydrocarbons,
have less than 25 ppm gaseous hydrocarbons
Medical air sources shall be used only for _____. - CORRECT ANSWER-Human
respiratory applications
Medical air compressor systems shall have a(n) ______ means to prevent back
flow through all off-cycle compressors - CORRECT ANSWER-Automatic
True - CORRECT ANSWER-An existing system that is not in strict compliance
with the provisions of this standard shall be permitted to be continued in use as
long as the authority having jurisdiction has determined that such use does not
constitute a distinct hazard to life
