NFPA 99 MedGas for 6010 Installer Exam 2026
| All Questions and Correct Answers | Verified
Answers | Just Released
All cryogenic fluid systems shall be provided with an auxiliary source connection
point the same size as the main line. Which is true?
A. it shall be located immediately on either side of the source valve
B. it shall consist of a tee, a valve, and a plug or cap brazed in place
C. it shall normally be kept closed and secured
D. both B & C ---------CORRECT ANSWER-----------------it shall normally be kept
closed and secured
Which of the following is NOT permitted for the check valves in an ESOC?
A. brass or bronze material
B. brazed extensions
C. threaded connections
D. threaded purge points 1/8" NPT ---------CORRECT ANSWER-----------------
threaded vonnections
In these portions of systems intended to handle oxygen at pressures greater than
350psi, the interconnection hoses shall NOT contain _____? ---------CORRECT
ANSWER-----------------polymeric
,The ESOC shall be installed on the exterior of the building being served, protected
from physical damage, and with a minimum of how many feet of clearance
around the connection? ---------CORRECT ANSWER-----------------3
Medical air intakes shall maintain a minimum distance of how many feet from the
areas where noxious fumes can collect? ---------CORRECT ANSWER-----------------25
Two or more medical gas piping systems shall NOT be interconnected EXCEPT
_____ ---------CORRECT ANSWER-----------------medical gas systems with the same
contents
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 ---------CORRECT ANSWER-----------------negative operating
pressure
Oxygen central supply systems with an oxygen concentrator, having three supply
sources, shall NOT be allowed if _____ ---------CORRECT ANSWER-----------------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 ---------CORRECT ANSWER---
--------------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? ---------CORRECT ANSWER----
-------------annually
Which portion of the central supply system is supplying the piping system at the
time of observation? ---------CORRECT ANSWER-----------------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? ---------
CORRECT ANSWER-----------------50
Those portions of the central supply system that act as a self-contained supply are
known as _____ ---------CORRECT ANSWER-----------------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 ---------CORRECT ANSWER-----------------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 ---------CORRECT ANSWER--------
---------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
B. Facility Survey
C. Gas Analysis
| All Questions and Correct Answers | Verified
Answers | Just Released
All cryogenic fluid systems shall be provided with an auxiliary source connection
point the same size as the main line. Which is true?
A. it shall be located immediately on either side of the source valve
B. it shall consist of a tee, a valve, and a plug or cap brazed in place
C. it shall normally be kept closed and secured
D. both B & C ---------CORRECT ANSWER-----------------it shall normally be kept
closed and secured
Which of the following is NOT permitted for the check valves in an ESOC?
A. brass or bronze material
B. brazed extensions
C. threaded connections
D. threaded purge points 1/8" NPT ---------CORRECT ANSWER-----------------
threaded vonnections
In these portions of systems intended to handle oxygen at pressures greater than
350psi, the interconnection hoses shall NOT contain _____? ---------CORRECT
ANSWER-----------------polymeric
,The ESOC shall be installed on the exterior of the building being served, protected
from physical damage, and with a minimum of how many feet of clearance
around the connection? ---------CORRECT ANSWER-----------------3
Medical air intakes shall maintain a minimum distance of how many feet from the
areas where noxious fumes can collect? ---------CORRECT ANSWER-----------------25
Two or more medical gas piping systems shall NOT be interconnected EXCEPT
_____ ---------CORRECT ANSWER-----------------medical gas systems with the same
contents
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 ---------CORRECT ANSWER-----------------negative operating
pressure
Oxygen central supply systems with an oxygen concentrator, having three supply
sources, shall NOT be allowed if _____ ---------CORRECT ANSWER-----------------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 ---------CORRECT ANSWER---
--------------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? ---------CORRECT ANSWER----
-------------annually
Which portion of the central supply system is supplying the piping system at the
time of observation? ---------CORRECT ANSWER-----------------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? ---------
CORRECT ANSWER-----------------50
Those portions of the central supply system that act as a self-contained supply are
known as _____ ---------CORRECT ANSWER-----------------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 ---------CORRECT ANSWER-----------------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 ---------CORRECT ANSWER--------
---------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
B. Facility Survey
C. Gas Analysis
