MEDICAL GAS NFPA QUESTIONS AND ANSWERS
Nitrous oxide cylinders shall be prevented from reaching temperatures in excess of. -
Answers- 125 degrees F
Carbon dioxide cylinders shall be prevented from reaching tempertaures below. -
Answers- 20 degrees F
Central supply systems for positive pressure gasses shall have one or more relief
valves with the relief setting above nromal operating pressure. - Answers- 50%
Completed Manufactured Assesmblies being tested at 20% above operating pressure
shall not exceedthis percentage for leakage? - Answers- 0.5%
Activities , systems , or equipment whose failure is likely to cause major injury or death
of patients, staff, or visitors. - Answers- Category 1
Alternative air for Medical Air compressor intakes must be at hand 7 days per week and
how many hours per day. - Answers- 24 hours
Moisture concentration of outlets during the verifier Piping Purity Test shall not exceed
this ppm. - Answers- 500 ppm
The local alarm of the Medial Air shall activate when the dew point is over the
temperature. - Answers- 35 degress F
The Master Alarm will activate when the medical gas line normal pressure increases or
decreases by this percentage amount. - Answers- 20%
This is the approximate percentage of the earth's atmosphere that is oxygen. -
Answers- 21%
Maximum oxygen percentage content in a Medical Air Proportioning system shall be no
higher than? - Answers- 23.5%
Combustible liquids in medical gas systems are those which have a flash point at or
above this. - Answers- 100 degrees F
The quality of instrument air shall be filtered to this micron level. - Answers- 0.01
The quality of medical air supply shall not exceed this ppm content gaseous
hydrocarbons. - Answers- 25
The section of the central supply system that act as a self-contained supply. - Answers-
Supply Source
, The portion of the central supply system that is in the piping system at the time of
inspected. - Answers- Operating Supply
The default supply of the central supply piping system. - Answers- Primary Supply
The section of the central supply system that will supply the system when the primary &
secondary is exhausted. - Answers- Reserve Supply
That part of the central supply systems that will supply the system when the primary has
been depleted. - Answers- Secondary Supply
Activities, systems, or equipment whose failure is likely to cause minor injury to patients,
staff, or visitors. - Answers- Category 2
Activities, systems, or equipment whose failure is not likely to cause injury to patients,
staff, or visitors but can cause discomfort. - Answers- Category 3
Activites, systems, or equipment whose failure would have no impact on patient care. -
Answers- Category 4
The number of cylinders in an Instrument Air Standby header shall be adequate for this
amount of time. - Answers- 1 hour
Orbital welded test coupons shall be inspected at the start of work and at a minimum of
how many hours thereafter? - Answers- 4 hours
Copper Joints that have been cleaned or brazing shall be brazed within this time. -
Answers- 8 hours
They can allow an existing system, that is not in compliance with the NFPA 99 code to
remain in service. - Answers- AHJ
Removal of the outlet connection on a cryongenic liquid container will cause the
container to become? - Answers- Unsuable
Carbon dioxide & nitrous oxide cylinders shall be kept from reaching temperature
below? - Answers- 20 degrees F
The master alarm shall activate when the medical air dew point goes above this
temperature? - Answers- 35 degrees F
The location where a person would undergo medical care or treatment in a healthcare
facility? - Answers- Patient Care Space
The location whithin 6 ft of the patient's bed and 7ft- 6in from the ceiling, where an
examination would take place? - Answers- Patient Care Vicinity
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