Medical Gas NFPA 99
2025/2026
Exam Prep Material
with
Verified Questions and Answers
A+ Grades Guarantee
, 125 degrees F
Nitrous oxide cylinders shall be
prevented from reaching
temperatures in excess of.
20 degrees F
Carbon dioxide cylinders shall be
prevented from reaching
tempertaures below.
50%
Central supply systems for
positive pressure gasses shall
have one or more relief valves
with the relief setting above
nromal operating pressure.
0.5%
Completed Manufactured
Assesmblies being tested at 20%
above operating pressure shall
not exceedthis percentage for
leakage?
Category 1
Activities , systems , or
equipment whose failure is likely
to cause major injury or death of
patients, staff, or visitors.
Category 2
Activities, systems, or equipment
whose failure is likely to cause
minor injury to patients, staff, or
visitors.
Category 3
Activities, systems, or equipment
whose failure is not likely to
cause injury to patients, staff, or
visitors but can cause discomfort.
Category 4
Activites, systems, or equipment
whose failure would have no
impact on patient care.
1 hour
The number of cylinders in an
Instrument Air Standby header
shall be adequate for this amount
of time.
4 hours
Orbital welded test coupons shall
be inspected at the start of work
and at a minimum of how many
hours thereafter?
2025/2026
Exam Prep Material
with
Verified Questions and Answers
A+ Grades Guarantee
, 125 degrees F
Nitrous oxide cylinders shall be
prevented from reaching
temperatures in excess of.
20 degrees F
Carbon dioxide cylinders shall be
prevented from reaching
tempertaures below.
50%
Central supply systems for
positive pressure gasses shall
have one or more relief valves
with the relief setting above
nromal operating pressure.
0.5%
Completed Manufactured
Assesmblies being tested at 20%
above operating pressure shall
not exceedthis percentage for
leakage?
Category 1
Activities , systems , or
equipment whose failure is likely
to cause major injury or death of
patients, staff, or visitors.
Category 2
Activities, systems, or equipment
whose failure is likely to cause
minor injury to patients, staff, or
visitors.
Category 3
Activities, systems, or equipment
whose failure is not likely to
cause injury to patients, staff, or
visitors but can cause discomfort.
Category 4
Activites, systems, or equipment
whose failure would have no
impact on patient care.
1 hour
The number of cylinders in an
Instrument Air Standby header
shall be adequate for this amount
of time.
4 hours
Orbital welded test coupons shall
be inspected at the start of work
and at a minimum of how many
hours thereafter?
