NFPA99 Medical Gas | comprehensive Q&A
for certification Success
Non mandated fundamentals and recommended guidelines for medical gas and vacuum
systems shall be located in the ______ of the NFPA 99 code or the ASSE 6000 standard.-correct-
answer-Annexes or appendixes
A document in which the main text contains only mandatory provisions. Non mandatory
provisions are located in the appendix or annex. This is the NFPA 99 definition of what?-correct-
answer-Standard
A medical air proportioning system shall have a minimum of how many recorders in order to
record system performance and air quality for a period of no less than 24 hours.-correct-
answer-1
When testing outlets / inlets, you must use which of the components?-correct-answer-Gas
specific adapters
In a cryogenic fluid central supply system, when the reserves supply contents are reduced to an
average days supply, which alarm system(s) signal shall be activated?-correct-answer-Local
,The installer performed initial pressure test requires that testing shall be conducted ________?-
correct-answer-Prior to installation of pressure/vacuum indicators and alarm devices that would
be damaged by test pressure
Which of these are a requirement of instrument air?
Compliant with instrument air section ANSI/ISA S-7.0.01
Dry to a few point of -30F
Filtered to 0.7
Compliant with medical air USP-correct-answer-Compliant with instrument air section ANSI/ISA
s-7.0.01
After completion of installer performed tests, the code allows for which of these methods to
determine no cross connection exists?
Individual pressurization to 150 psi
Individual pressurization/pressure differential
Pressure differential to 30 psi above normal operating pressure
None of the above-correct-answer-Individual pressurization/pressure differential
In a category 1 facility which of the following are correct regarding the standing vacuum test for
vacuum piping?
During the test the source of vacuum shall be disconnected
Leakage attributed to ambient temperature changes over .5% over starting pressure
Standing vacuum test is performed after successful completion of the initial pressure test of
positive pressure and vacuum systems
All of the above-correct-answer-All of the above
, Each riser supplied from the main line shall be provided with a shut off valve in the riser
adjacent to the main line. What is this valve called?-correct-answer-Riser valve
What is the standard operating pressure of nitrogen?-correct-answer-55-185 psi
What is the standard operating pressure of instrument air?-correct-answer-50-185 psi
Which type of medical gas has an oxygen concentration > or = 90% & < or = to 96%?-correct-
answer-Oxygen 93 USP
A gauge exceeding 200 psi in a piping system is defined as which?
High pressure
Intermediate pressure
Absolute pressure
Atmospheric pressure-correct-answer-High pressure
Dental air is a compressed gas intended to be used to:-correct-answer-Operate dental devices
for certification Success
Non mandated fundamentals and recommended guidelines for medical gas and vacuum
systems shall be located in the ______ of the NFPA 99 code or the ASSE 6000 standard.-correct-
answer-Annexes or appendixes
A document in which the main text contains only mandatory provisions. Non mandatory
provisions are located in the appendix or annex. This is the NFPA 99 definition of what?-correct-
answer-Standard
A medical air proportioning system shall have a minimum of how many recorders in order to
record system performance and air quality for a period of no less than 24 hours.-correct-
answer-1
When testing outlets / inlets, you must use which of the components?-correct-answer-Gas
specific adapters
In a cryogenic fluid central supply system, when the reserves supply contents are reduced to an
average days supply, which alarm system(s) signal shall be activated?-correct-answer-Local
,The installer performed initial pressure test requires that testing shall be conducted ________?-
correct-answer-Prior to installation of pressure/vacuum indicators and alarm devices that would
be damaged by test pressure
Which of these are a requirement of instrument air?
Compliant with instrument air section ANSI/ISA S-7.0.01
Dry to a few point of -30F
Filtered to 0.7
Compliant with medical air USP-correct-answer-Compliant with instrument air section ANSI/ISA
s-7.0.01
After completion of installer performed tests, the code allows for which of these methods to
determine no cross connection exists?
Individual pressurization to 150 psi
Individual pressurization/pressure differential
Pressure differential to 30 psi above normal operating pressure
None of the above-correct-answer-Individual pressurization/pressure differential
In a category 1 facility which of the following are correct regarding the standing vacuum test for
vacuum piping?
During the test the source of vacuum shall be disconnected
Leakage attributed to ambient temperature changes over .5% over starting pressure
Standing vacuum test is performed after successful completion of the initial pressure test of
positive pressure and vacuum systems
All of the above-correct-answer-All of the above
, Each riser supplied from the main line shall be provided with a shut off valve in the riser
adjacent to the main line. What is this valve called?-correct-answer-Riser valve
What is the standard operating pressure of nitrogen?-correct-answer-55-185 psi
What is the standard operating pressure of instrument air?-correct-answer-50-185 psi
Which type of medical gas has an oxygen concentration > or = 90% & < or = to 96%?-correct-
answer-Oxygen 93 USP
A gauge exceeding 200 psi in a piping system is defined as which?
High pressure
Intermediate pressure
Absolute pressure
Atmospheric pressure-correct-answer-High pressure
Dental air is a compressed gas intended to be used to:-correct-answer-Operate dental devices
