NFPA99 Medical Gas Exam | Verified Exam Questions and Answers |
Latest Updated Study Material 2026
Question:
A manual reset local alarm that indicates when the capacity of the instrument air central supply
system not in use is less than the equivalent capacity of
Answer:
One
compressor
Question:
After a final tie - In on an active vacuum system , each vacuum joints shall be tested with a leak
detector or other means that will allow detectant on an active vacuum system .
Answer:
Ultrasonic
Question:
After the final tie-in each joint shall be leak tested by the source gas. New work and the existing
system at the normal operating pressure shall be leak checked with a leak detectant that is safe
for use with oxygen and does NOT contain
Answer:
Ammonia
Question:
After the piping system, the blow down test shall be done. Then the installer must perform which
of the following test?
Answer:
Initial pressure test
Question:
Alarm panels and shutoff valves labeling shall be when modifications are made,
changing the areas serviced
Answer:
Updated
,Question:
All gas outlets with gauge pressure of 345 kPa (50 psi), including, but not limited to, oxygen,
nitrous oxide, medical air, and carbon dioxide, shall deliver 100 SLPM (3.5 SCFM) with a
pressure drop of not more than 35 kPa ( ) and static pressure of 345 kPa to 380 kPa (50psi
to 55 psi)
Answer:
5 psi
Question:
Area alarms shall be tested to verify the warning signals for all vital life support and critical care
areas if the pressure in the piping system increases or decreases by
Answer:
20%
Question:
At the sample port a demand of approximated 25% load shall be created to cause the
compressors to cycle on and off continuously and the dryers to operate for the period.
Answer:
12 hour
Question:
Before the piping system is put into use, who is responsible for the ascertaining that the gas
delivered to the outlet/inlet has the proper labels and connecting fittings.
Answer:
Facility authority
Question:
Breached portions of the systems subject to inspection and testing shall be confined to only the
specific altered zone or area that is downstream for pressure gases at the point of intrusion.
Where a system shall be declared breached?
Answer:
Physical separation
of pipeline, system component removal, replacement or addition of system components
Question:
Category 2 & 3 medical has and vacuum systems are allowed to be on the amount of
compressors and vacuum pumps
, Answer:
Simplex
Question:
Category 2 oxygen piping shall be at least 1 size larger than piping for ?
Answer:
Nitrous oxide
Question:
Category 3 gas-power device supply systems, vacuum systems and scavenging systems. The
initial tests shall be performed before the final tests shall be conducted by .
Answer:
Installer, representative of the system manufacturer, medical gas system
verifier 6030
Question:
Category 3 piped gas and vacuum systems only shall be permitted.
Answer:
Minimal or no sedation
Question:
Category 3 vacuum source equipment shall be obtained from, and be installed under the
supervision of the ?
Answer:
Manufacturer, supplier, who is
familiar with its installation, operation and use
Question:
Category 2 & 3 medical gas systems are required to have how many alarm panels?
Answer:
1
Question:
Cylinders in service and in storage shall be secured and located to prevent falling or
being knocked over.
Latest Updated Study Material 2026
Question:
A manual reset local alarm that indicates when the capacity of the instrument air central supply
system not in use is less than the equivalent capacity of
Answer:
One
compressor
Question:
After a final tie - In on an active vacuum system , each vacuum joints shall be tested with a leak
detector or other means that will allow detectant on an active vacuum system .
Answer:
Ultrasonic
Question:
After the final tie-in each joint shall be leak tested by the source gas. New work and the existing
system at the normal operating pressure shall be leak checked with a leak detectant that is safe
for use with oxygen and does NOT contain
Answer:
Ammonia
Question:
After the piping system, the blow down test shall be done. Then the installer must perform which
of the following test?
Answer:
Initial pressure test
Question:
Alarm panels and shutoff valves labeling shall be when modifications are made,
changing the areas serviced
Answer:
Updated
,Question:
All gas outlets with gauge pressure of 345 kPa (50 psi), including, but not limited to, oxygen,
nitrous oxide, medical air, and carbon dioxide, shall deliver 100 SLPM (3.5 SCFM) with a
pressure drop of not more than 35 kPa ( ) and static pressure of 345 kPa to 380 kPa (50psi
to 55 psi)
Answer:
5 psi
Question:
Area alarms shall be tested to verify the warning signals for all vital life support and critical care
areas if the pressure in the piping system increases or decreases by
Answer:
20%
Question:
At the sample port a demand of approximated 25% load shall be created to cause the
compressors to cycle on and off continuously and the dryers to operate for the period.
Answer:
12 hour
Question:
Before the piping system is put into use, who is responsible for the ascertaining that the gas
delivered to the outlet/inlet has the proper labels and connecting fittings.
Answer:
Facility authority
Question:
Breached portions of the systems subject to inspection and testing shall be confined to only the
specific altered zone or area that is downstream for pressure gases at the point of intrusion.
Where a system shall be declared breached?
Answer:
Physical separation
of pipeline, system component removal, replacement or addition of system components
Question:
Category 2 & 3 medical has and vacuum systems are allowed to be on the amount of
compressors and vacuum pumps
, Answer:
Simplex
Question:
Category 2 oxygen piping shall be at least 1 size larger than piping for ?
Answer:
Nitrous oxide
Question:
Category 3 gas-power device supply systems, vacuum systems and scavenging systems. The
initial tests shall be performed before the final tests shall be conducted by .
Answer:
Installer, representative of the system manufacturer, medical gas system
verifier 6030
Question:
Category 3 piped gas and vacuum systems only shall be permitted.
Answer:
Minimal or no sedation
Question:
Category 3 vacuum source equipment shall be obtained from, and be installed under the
supervision of the ?
Answer:
Manufacturer, supplier, who is
familiar with its installation, operation and use
Question:
Category 2 & 3 medical gas systems are required to have how many alarm panels?
Answer:
1
Question:
Cylinders in service and in storage shall be secured and located to prevent falling or
being knocked over.
