NFPA 99 MEDGAS FOR 6010 INSTALLER
EXAM 2026/2027 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST |BRAND NEW
VERSION|JUST RELEASED!!
NFPA 99 requires that flexible connectors connected with manufactured assemblies shall
include all EXCEPT which of the following?
A. date of installation
B. name of gas or vacuum system
C. negative operating pressure
D. system color code
negative operating pressure
Oxygen central supply systems with an oxygen concentrator, having three supply sources, shall
NOT be allowed if _____
a documented risk analysis has NOT been completed
Which of the following risk categories does NOT permit medical gases?
A. Category 1 piped gas and vacuum systems
B. Category 2 sources
C. Category 3 dental gas & vacuum systems
D. each of these categories may permit medical gases
each of these categories may permit medical gases
In accordance with NFPA 99, central supply systems for nonflammable medical gas systems shall
be inspected with what frequency?
1|Page
,annually
Which portion of the central supply system is supplying the piping system at the time of
observation?
operating supply
In a dental gas system the initial cross connection test of copper medical gas distribution piping
requires the piping to be pressurized to how many psi?
50
Those portions of the central supply system that act as a self-contained supply are known as
_____
supply source
Support gases used for powering tools include all EXCEPT which of the following?
A. dental air
B. helium
C. instrument air
D. nitrogen
helium
Which of the following is a requirement for the configuration of a zone valve box?
A.located in the room it serves
B. locked so that the valves are inaccessible to the public
C. placed so that a wall intervenes between the valve and the inlets/outlets that it controls
D. serve inlets/outlets located on 2 or more floors
placed so that a wall intervenes between the valve and the inlets/outlets that it controls
According to NFPA 99, which of these procedures must be followed and documented to
determine which relevant category for medical gases the facility would fall under?
A. Defined Risk Assessment procedure
2|Page
,B. Facility Survey
C. Gas Analysis
D. Patient Assessment
Defined Risk Assessment procedure
Category 1 requirements shall NOT be applied when the facility only delivers this level of
sedation.
A. deep sedation on human patients
B. general anesthesia on human patients
C. general anesthesia on veterinary patients
D. Category 1 requirements apply whenever anesthesia is involved
general anesthesia on veterinary patients
Threaded connections in the medical gas piping distribution system are NOT permitted for
which of the following devices?
A. alarm devices
B. in-line check valves
C. pressure indicators
D. vacuum indicators
in-line check valves
Which of the following is an NFPA 99 requirement for electrical devices in locations where there
is storage of medical gas cylinders?
A. compliant to NFPA 55
B. devices protected from physical damage
C. installation 5' above finished floor
D. must be explosion proof
devices protected from physical damage
3|Page
, Which of these is a requirement for the installation of alarm switches?
A. disposable
B. latchable
C. removable
D. visible
removable
Which of these is an NFPA 99 requirement for the wiring of two mandatory master alarms?
A. alarms shall be sent to the area alarm panel in the emergency room
B. common conductors
C. independently to the initiating device(s) for each signal
D. without any splices
independently to the initiating device(s) for each signal
WAGD station inlets are installed in a down facing position from the ceiling column shall have
this type of connection.
Diameter Index Safety System (DISS)
A new Category 2 Surgery Center has been constructed and is in need of certification. The
oxygen central supply system shall meet the requirements of Category 1 EXCEPT that _____:
A. electrical devices do NOT require protection
B. if outdoors, only one egress/exit is required
C. the room may be heated by any means
D. the requirements are the same for Category 1 and Category 2
the requirements are the same for Category 1 and Category 2
A required dew point monitor on a medical air compressor system shall activate a local alarm
and all master alarms when the dew point at system demand reaches _____.
35 degrees F
4|Page
EXAM 2026/2027 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST |BRAND NEW
VERSION|JUST RELEASED!!
NFPA 99 requires that flexible connectors connected with manufactured assemblies shall
include all EXCEPT which of the following?
A. date of installation
B. name of gas or vacuum system
C. negative operating pressure
D. system color code
negative operating pressure
Oxygen central supply systems with an oxygen concentrator, having three supply sources, shall
NOT be allowed if _____
a documented risk analysis has NOT been completed
Which of the following risk categories does NOT permit medical gases?
A. Category 1 piped gas and vacuum systems
B. Category 2 sources
C. Category 3 dental gas & vacuum systems
D. each of these categories may permit medical gases
each of these categories may permit medical gases
In accordance with NFPA 99, central supply systems for nonflammable medical gas systems shall
be inspected with what frequency?
1|Page
,annually
Which portion of the central supply system is supplying the piping system at the time of
observation?
operating supply
In a dental gas system the initial cross connection test of copper medical gas distribution piping
requires the piping to be pressurized to how many psi?
50
Those portions of the central supply system that act as a self-contained supply are known as
_____
supply source
Support gases used for powering tools include all EXCEPT which of the following?
A. dental air
B. helium
C. instrument air
D. nitrogen
helium
Which of the following is a requirement for the configuration of a zone valve box?
A.located in the room it serves
B. locked so that the valves are inaccessible to the public
C. placed so that a wall intervenes between the valve and the inlets/outlets that it controls
D. serve inlets/outlets located on 2 or more floors
placed so that a wall intervenes between the valve and the inlets/outlets that it controls
According to NFPA 99, which of these procedures must be followed and documented to
determine which relevant category for medical gases the facility would fall under?
A. Defined Risk Assessment procedure
2|Page
,B. Facility Survey
C. Gas Analysis
D. Patient Assessment
Defined Risk Assessment procedure
Category 1 requirements shall NOT be applied when the facility only delivers this level of
sedation.
A. deep sedation on human patients
B. general anesthesia on human patients
C. general anesthesia on veterinary patients
D. Category 1 requirements apply whenever anesthesia is involved
general anesthesia on veterinary patients
Threaded connections in the medical gas piping distribution system are NOT permitted for
which of the following devices?
A. alarm devices
B. in-line check valves
C. pressure indicators
D. vacuum indicators
in-line check valves
Which of the following is an NFPA 99 requirement for electrical devices in locations where there
is storage of medical gas cylinders?
A. compliant to NFPA 55
B. devices protected from physical damage
C. installation 5' above finished floor
D. must be explosion proof
devices protected from physical damage
3|Page
, Which of these is a requirement for the installation of alarm switches?
A. disposable
B. latchable
C. removable
D. visible
removable
Which of these is an NFPA 99 requirement for the wiring of two mandatory master alarms?
A. alarms shall be sent to the area alarm panel in the emergency room
B. common conductors
C. independently to the initiating device(s) for each signal
D. without any splices
independently to the initiating device(s) for each signal
WAGD station inlets are installed in a down facing position from the ceiling column shall have
this type of connection.
Diameter Index Safety System (DISS)
A new Category 2 Surgery Center has been constructed and is in need of certification. The
oxygen central supply system shall meet the requirements of Category 1 EXCEPT that _____:
A. electrical devices do NOT require protection
B. if outdoors, only one egress/exit is required
C. the room may be heated by any means
D. the requirements are the same for Category 1 and Category 2
the requirements are the same for Category 1 and Category 2
A required dew point monitor on a medical air compressor system shall activate a local alarm
and all master alarms when the dew point at system demand reaches _____.
35 degrees F
4|Page
