Page 1 of 72
NFPA 99 MEDICAL GAS FOR 6010 INSTALLER
CERTIFICATION 2026 EXAM COMPLETE (274)
CURRENT TESTING QUESTIONS AND
DETAILED CORRECT
ANSWERS|GUARANTEED PASS.
NFPA 99
Prepare effectively with this NFPA 99 Medical Gas for 6010
Installer Certification Exam, designed to assess essential
knowledge of medical gas systems in healthcare facilities. It
focuses on NFPA 99 standards, installation requirements,
system safety, testing procedures, and regulatory compliance.
The exam strengthens technical understanding and code
application skills for real-world installation work. Suitable for
medical gas installer certification candidates and healthcare
construction professionals.
Which of the following is an NFPA 99 requirement for
electrical devices in locations where med gas cylinders are
stored?
A. compliant to NFPA 55
B. devices protected from physical damage
C. 5' above finished floor
, Page 2 of 72
D. explosion proof ✓ ✓ ...... ANSWER ....... devices
protected from physical damage
Which of these is a requirement for wireless communication
devices employed for med gas warning systems?
A. electronically shieled
B. installed at the source of the supply
C. located at control desk
D. supervised such that failure to communicate will initiate
an alarm ✓ ✓ ...... ANSWER ....... supervised such that
failure to communicate will initiate an alarm
In a Category 3 distribution system the initial cross
connection test requires the individual gas systems being
tested to be pressurized to how many psi? ✓ ✓ ......
ANSWER ....... 50
When and where are flexible metallic joints permitted in the
med-gas system? ✓ ✓ ...... ANSWER ....... when provided
with extensions for brazing
, Page 3 of 72
Which type of test may NOT be done by the installing
contractor? ✓ ✓ ...... ANSWER ....... system verification
In those portions of systems intended to handle oxygen at
gauge pressure greater than _____ psi, interconnecting hose
shall contain NO polymeric materials. ✓ ✓ ...... ANSWER
....... 350
Supply lines servicing standard and non-standard oxygen
are piped underground from the remote bulk supply. The
standard pressure line requires 50psi and the nonstandard
requires 80psi. Is it permissible for both services to be
supplied by a single underground supply line? ✓ ✓ ......
ANSWER ....... Yes, provided a separate final line regulator
assembly is installed to each set pressure
Where alarm initiating devices are remote of the building and
the wiring is run underground, the minimum requirement of
running a single set of wires to a junction box inside the
building is permitted. ✓ ✓ ...... ANSWER ....... True
Locations for central supply systems and the storage of
positive pressure gas shall be constructed with a(n) _____.
, Page 4 of 72
✓ ✓ ...... ANSWER ....... minimum of 2 entry/exits if
located outdoors
Service water and seal water used for liquid ring
compressors shall be _____ to protect against waterborne
pathogens. ✓ ✓ ...... ANSWER ....... treated water
Why does NFPA 99 require a minimum clearance around an
EOSC? ✓ ✓ ...... ANSWER ....... for the connection of the
temporary source of supply
If stainless steel tube in a vacuum system is to be joined
using memory metal fittings having a temperature rating of
1000 degrees F, the fittings must have a pressure rating of
not less than _____. ✓ ✓ ...... ANSWER ....... 300 psi
Which of these is a requirement for the control equipment of
a bulk system that is installed physically remote from the
source supply?
A. ability to be secured/locked
B. direct heating
C. electrical outlets 5' from floor
NFPA 99 MEDICAL GAS FOR 6010 INSTALLER
CERTIFICATION 2026 EXAM COMPLETE (274)
CURRENT TESTING QUESTIONS AND
DETAILED CORRECT
ANSWERS|GUARANTEED PASS.
NFPA 99
Prepare effectively with this NFPA 99 Medical Gas for 6010
Installer Certification Exam, designed to assess essential
knowledge of medical gas systems in healthcare facilities. It
focuses on NFPA 99 standards, installation requirements,
system safety, testing procedures, and regulatory compliance.
The exam strengthens technical understanding and code
application skills for real-world installation work. Suitable for
medical gas installer certification candidates and healthcare
construction professionals.
Which of the following is an NFPA 99 requirement for
electrical devices in locations where med gas cylinders are
stored?
A. compliant to NFPA 55
B. devices protected from physical damage
C. 5' above finished floor
, Page 2 of 72
D. explosion proof ✓ ✓ ...... ANSWER ....... devices
protected from physical damage
Which of these is a requirement for wireless communication
devices employed for med gas warning systems?
A. electronically shieled
B. installed at the source of the supply
C. located at control desk
D. supervised such that failure to communicate will initiate
an alarm ✓ ✓ ...... ANSWER ....... supervised such that
failure to communicate will initiate an alarm
In a Category 3 distribution system the initial cross
connection test requires the individual gas systems being
tested to be pressurized to how many psi? ✓ ✓ ......
ANSWER ....... 50
When and where are flexible metallic joints permitted in the
med-gas system? ✓ ✓ ...... ANSWER ....... when provided
with extensions for brazing
, Page 3 of 72
Which type of test may NOT be done by the installing
contractor? ✓ ✓ ...... ANSWER ....... system verification
In those portions of systems intended to handle oxygen at
gauge pressure greater than _____ psi, interconnecting hose
shall contain NO polymeric materials. ✓ ✓ ...... ANSWER
....... 350
Supply lines servicing standard and non-standard oxygen
are piped underground from the remote bulk supply. The
standard pressure line requires 50psi and the nonstandard
requires 80psi. Is it permissible for both services to be
supplied by a single underground supply line? ✓ ✓ ......
ANSWER ....... Yes, provided a separate final line regulator
assembly is installed to each set pressure
Where alarm initiating devices are remote of the building and
the wiring is run underground, the minimum requirement of
running a single set of wires to a junction box inside the
building is permitted. ✓ ✓ ...... ANSWER ....... True
Locations for central supply systems and the storage of
positive pressure gas shall be constructed with a(n) _____.
, Page 4 of 72
✓ ✓ ...... ANSWER ....... minimum of 2 entry/exits if
located outdoors
Service water and seal water used for liquid ring
compressors shall be _____ to protect against waterborne
pathogens. ✓ ✓ ...... ANSWER ....... treated water
Why does NFPA 99 require a minimum clearance around an
EOSC? ✓ ✓ ...... ANSWER ....... for the connection of the
temporary source of supply
If stainless steel tube in a vacuum system is to be joined
using memory metal fittings having a temperature rating of
1000 degrees F, the fittings must have a pressure rating of
not less than _____. ✓ ✓ ...... ANSWER ....... 300 psi
Which of these is a requirement for the control equipment of
a bulk system that is installed physically remote from the
source supply?
A. ability to be secured/locked
B. direct heating
C. electrical outlets 5' from floor
