NFPA 99 MedGas for 6010 Installer questions with
verified answers
25 ppm Ans✔✔✔-The ppm gaseous hydrocarbons in the medical air system shall
be less than?
32 degrees F Ans✔✔✔-At any level of demand, the medical air dryers shall
provide air with a dew point below this temperature?
medical air compressors Ans✔✔✔-Which of the following is NOT permitted to
have the system supply source located outside?
A. vacuum pumps
B. manifolds for gas cylinders
C. instrument air compressors
D. medical air compressors
duplexed Ans✔✔✔-Regulators, filters, and dryers shall be sized to meet the peak
calculated demand. The piping format for these items shall be at a minimum?
Authority Having Jurisdiction (AHJ) Ans✔✔✔-They can allow an existing system,
which is not in compliance with the NFPA 99 Code to remain in service.
pressure regulator Ans✔✔✔-Medical air supply systems operating at different
pressures shall be provided with?
unusable Ans✔✔✔-The removal of the outlet connection on a cryogenic liquid
container will cause the container to become?
,laboratory Ans✔✔✔-A building, space, room, or group of rooms intended to
serve activities involving procedures for investigation, diagnosis, or treatment in
which flammable, combustible, or oxidizing materials are to be used.
20 degrees F Ans✔✔✔-Carbon dioxide and nitrous oxide cylinders shall be kept
from reaching temperatures below _____.
-22 degrees F Ans✔✔✔-The master alarm shall activate when the instrument air
compressor dew point temperature exceeds _____.
Category 1 Ans✔✔✔-In this space, alarm sensors shall be installed on the
patient's side of each individual zone valve box.
patient care vicinity Ans✔✔✔-The locations within 6' of the patient's bed and 7'-
6" from the ceiling, where examinations take place?
high water level Ans✔✔✔-Where liquid ring compressors for medical air are
used, the air receiver shall have a local alarm which will shut down the system
due to?
Category 4 Space Ans✔✔✔-An area where failure of a system is not likely to
cause any physical impact on a patient.
hyperbaric facility Ans✔✔✔-Building or structure, used to house hyperbaric
chambers for medical applications and procedures at pressures above normal
atmospheric pressure.
,area alarm Ans✔✔✔-The warning system that provides a continuous visible and
audible vigilant watch on Category 1 & Category 2 piping systems.
500 Ans✔✔✔-Moisture concentration of the outlet testing during the verifier
purity test shall not exceed how many ppm?
local alarm Ans✔✔✔-This alarm shall be triggered once the backup instrument
air compressor is energized.
1000 degrees F Ans✔✔✔-The components which make up surface mounted
medical gas rails shall have a melting point of no less than _____.
10 Ans✔✔✔-When the carbon monoxide level in a medical air system exceeds
this ppm level, the local alarm is triggered.
5 ppm Ans✔✔✔-The most remote outlet & the source gas undergo the verifiers
piping purity test. The ppm non-methane variation between the two shall not
exceed?
hospital Ans✔✔✔-Building used on a 24-hour basis for medical, psychiatric, or
surgical care of 4 or more patients.
35 degrees F Ans✔✔✔-The master alarm shall activate when the medical air dew
point goes above this temperature.
patient care space Ans✔✔✔-The location where a person would undergo medical
care or treatment in a health care facility.
, hypobaric facility Ans✔✔✔-Building or structure used to house hypobaric
chambers for medical applications and procedures at pressures below
atmospheric pressure.
8 hours Ans✔✔✔-Copper joints that have been cleaned for brazing shall be used
within this time frame?
Category 3 Ans✔✔✔-The activities, systems, or equipment whose failure is not
likely to cause injury to patients, staff, or visitors, but can cause discomfort is
_____.
reserve supply Ans✔✔✔-The default supply of the central supply piping system is
the _____.
Category 1 Ans✔✔✔-The activities, systems, or equipment whose faliure is likely
to cause major injury or death to patients, staff, or visitors.
23.5% Ans✔✔✔-Maximum oxygen percentage in a medical air proportioning
system shall be no higher than?
4 hours Ans✔✔✔-Orbital welded test coupons shall be inspected at the start of
work and at a minimum of how many hours thereafter?
20% Ans✔✔✔-The master alarm will activate when the medical gas line normal
pressure increases/decreases by this percentage.
verified answers
25 ppm Ans✔✔✔-The ppm gaseous hydrocarbons in the medical air system shall
be less than?
32 degrees F Ans✔✔✔-At any level of demand, the medical air dryers shall
provide air with a dew point below this temperature?
medical air compressors Ans✔✔✔-Which of the following is NOT permitted to
have the system supply source located outside?
A. vacuum pumps
B. manifolds for gas cylinders
C. instrument air compressors
D. medical air compressors
duplexed Ans✔✔✔-Regulators, filters, and dryers shall be sized to meet the peak
calculated demand. The piping format for these items shall be at a minimum?
Authority Having Jurisdiction (AHJ) Ans✔✔✔-They can allow an existing system,
which is not in compliance with the NFPA 99 Code to remain in service.
pressure regulator Ans✔✔✔-Medical air supply systems operating at different
pressures shall be provided with?
unusable Ans✔✔✔-The removal of the outlet connection on a cryogenic liquid
container will cause the container to become?
,laboratory Ans✔✔✔-A building, space, room, or group of rooms intended to
serve activities involving procedures for investigation, diagnosis, or treatment in
which flammable, combustible, or oxidizing materials are to be used.
20 degrees F Ans✔✔✔-Carbon dioxide and nitrous oxide cylinders shall be kept
from reaching temperatures below _____.
-22 degrees F Ans✔✔✔-The master alarm shall activate when the instrument air
compressor dew point temperature exceeds _____.
Category 1 Ans✔✔✔-In this space, alarm sensors shall be installed on the
patient's side of each individual zone valve box.
patient care vicinity Ans✔✔✔-The locations within 6' of the patient's bed and 7'-
6" from the ceiling, where examinations take place?
high water level Ans✔✔✔-Where liquid ring compressors for medical air are
used, the air receiver shall have a local alarm which will shut down the system
due to?
Category 4 Space Ans✔✔✔-An area where failure of a system is not likely to
cause any physical impact on a patient.
hyperbaric facility Ans✔✔✔-Building or structure, used to house hyperbaric
chambers for medical applications and procedures at pressures above normal
atmospheric pressure.
,area alarm Ans✔✔✔-The warning system that provides a continuous visible and
audible vigilant watch on Category 1 & Category 2 piping systems.
500 Ans✔✔✔-Moisture concentration of the outlet testing during the verifier
purity test shall not exceed how many ppm?
local alarm Ans✔✔✔-This alarm shall be triggered once the backup instrument
air compressor is energized.
1000 degrees F Ans✔✔✔-The components which make up surface mounted
medical gas rails shall have a melting point of no less than _____.
10 Ans✔✔✔-When the carbon monoxide level in a medical air system exceeds
this ppm level, the local alarm is triggered.
5 ppm Ans✔✔✔-The most remote outlet & the source gas undergo the verifiers
piping purity test. The ppm non-methane variation between the two shall not
exceed?
hospital Ans✔✔✔-Building used on a 24-hour basis for medical, psychiatric, or
surgical care of 4 or more patients.
35 degrees F Ans✔✔✔-The master alarm shall activate when the medical air dew
point goes above this temperature.
patient care space Ans✔✔✔-The location where a person would undergo medical
care or treatment in a health care facility.
, hypobaric facility Ans✔✔✔-Building or structure used to house hypobaric
chambers for medical applications and procedures at pressures below
atmospheric pressure.
8 hours Ans✔✔✔-Copper joints that have been cleaned for brazing shall be used
within this time frame?
Category 3 Ans✔✔✔-The activities, systems, or equipment whose failure is not
likely to cause injury to patients, staff, or visitors, but can cause discomfort is
_____.
reserve supply Ans✔✔✔-The default supply of the central supply piping system is
the _____.
Category 1 Ans✔✔✔-The activities, systems, or equipment whose faliure is likely
to cause major injury or death to patients, staff, or visitors.
23.5% Ans✔✔✔-Maximum oxygen percentage in a medical air proportioning
system shall be no higher than?
4 hours Ans✔✔✔-Orbital welded test coupons shall be inspected at the start of
work and at a minimum of how many hours thereafter?
20% Ans✔✔✔-The master alarm will activate when the medical gas line normal
pressure increases/decreases by this percentage.
