MEDICAL GAS INSTALLERS FINAL EXAM AND PRACTICE EXAM QUESTIONS 2025 NEWEST ACTUAL EXAM COMPLETE 100+ QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+

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MEDICAL GAS INSTALLERS FINAL EXAM AND
PRACTICE EXAM QUESTIONS 2025 NEWEST
ACTUAL EXAM COMPLETE 100+ QUESTIONS
WITH DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) /ALREADY GRADED A+




The Medical air compressor intake shall be located a minimum of how ma
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ny feet away from any exhaust or plumbing vents? - answer25 feet
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when is the initial pressure test conducted, by a Medical gas installer, on
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a nitrous oxide system?
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A) after the blowdown of a distribution piping
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B) after the installation of the alarm sensors
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C) before the blowdown of the distribution piping
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D) before the instillation of station rough-in assemblies -
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g answerA) after the blowdown of a distribution piping
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In those portions of systems intended to handle oxygen at pressure greate
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r than 350 psi the interconnecting hose shall not contain what materials?
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A) Brassg




B) Copper
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C) Polymeric
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D) stainless steel - answer
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In a category 1 dental and gas vacuum piping system, which of the followi
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ng is an NFPA 99 requirement for the labeling of pipes?
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A) color coding
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B) fixed label width
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C) label shall wrap completely around the pipe
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D) reflective label - answer
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Which of the following treatments shall be performed before brazing cut e
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nds of a tube to be installed in a medical gas piping system?
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A) an argon gas purge shall be performed
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B) cut end shall be rolled smooth or deburred
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C) extensions shall be added for brazing
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D) Treatment is NOT required; they may be brazed AS IS - answer
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Manifolds for gas cylinders shall actuate a ____ signal and shall activate a
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n indicator at all ____ alarm panels to indicate when or just before change
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over from one header to the other?
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A) area; master.
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B) local ; master.
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C) master; area.
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D) master; local. - answer
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In a non anesthetizing area , on which side of a zone valve shall the pressu
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re/vacuum sensor be located? g g g g




A) station outlets / inlets.
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B) source side.
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C) upstream side.
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D) NFPA 99 does not specify a requirement. - answer
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What is the purpose of using an oxygen analyzer during the piping purge
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prior to brazing?
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A) Assure that all ambient air has been removed from the pipeline
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B) maintain a nitrogen atmosphere of at least 95% within the piping syste
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m

C) provide continuous monitoring during the verification test
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D) reduce oxygen concentration below 5% before brazing - answer
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