TESTING PROCEDURES QUESTIONS AND CORRECT
VERIFIED ANSWERS 100% CORRECT ANSWERS) |BEST
FOR PRACTICE| GRADED A+| NFPA 99 MEDICAL GAS
SYSTEMS| KEY STANDARDS AND TESTING
PROCEDURES [BRAND NEW!]
What does the Verifier perform medical gas concentration test measures? -
ANSWER-Flow, Pressure, The specific gas dispensed, Vacuum
Where shall pressure/vacuum indicators be provided? - ANSWER-Adjacent to the
alarm-initiating device for source main line pressure and vacuum alarms in the
master alarm system
Which components are permitted to be located together in central supply system
locations? - ANSWER-Medical air central supply compressor sources and WAGD
central supply sources
Who shall witness the initial pressure tests performed by the installing contractor?
- ANSWER-An ASSE 6020 inspector or an ASSE 6030 verifier
What type of connectors are required where air compressors connect with their
intake and outlet piping? - ANSWER-Flexible
What should be kept sealed during and after installation in the piping system? -
ANSWER-Openings to maintain a nitrogen atmosphere and prevent debris or other
contaminants from entering the system
, What standard must the filler metal used on brazed joints meet? - ANSWER-
ANSI/AWS A5.8M/A5.8
Which is NOT an NFPA99 requirement for conducting the Installer performed
initial piping purge test? - ANSWER-Use of a flowmeter
Where shall alarm sensors for area alarms for Category 1 spaces be installed? -
ANSWER-The patient or use side of the individual zone valves
What type of alarm shall instrument air sources include? - ANSWER-Manual-reset
local alarm
Who determines if continued use of a noncompliant system poses a distinct hazard
to life? - ANSWER-Authority having jurisdiction
What should multiple vacuum pumps be sized to minimize? - ANSWER-Back
pressure
What is TRUE of station outlets and inlets of Category 2 piped gas and vacuum
systems? - ANSWER-They shall comply with Category 1 requirements
What should each header in central supply systems using cylinders have? -
ANSWER-Filter to prevent the intrusion of debris
What analyzer shall be used to verify the effectiveness of the purge before brazing?
- ANSWER-Oxygen analyzer that reads below 1 percent oxygen concentration