NFPA-99: PRACTICE TEST QUESTIONS
AND ANSWERS (GRADED A+)
Under which of these conditions shall the instrument Air Reserve header cylinders be
permitted to be stored with the instrument air compressor?
A) the mechanical equipment room does not contain a boiler.
B) the medical air compressors are in the same room.
C) the only motor-driven machinery in the room is for instrument air equipment.
D) the room is secured with lockable doors. - ANSWER-C) The only motor-driven
machinery in the room is for the instrument air equipment
Riser valves are those valves located where?
A) adjacent to the main riser downstream of any zone valve.
B) anywhere in the lateral branches of the piping system.
C) in the mainline adjacent to the base of the riser.
D) in the riser adjacent to the mainline. - ANSWER-D) In the riser adjacent to the main
line
When is the initial pressure test conducted by the installer?
A) after blowdown of the distribution piping.
B) after installation of alarm sensors.
C) before blowdown of distribution piping.
D) before installation of station rough in assembly. - ANSWER-A) After blow-down of
the distribution piping.
In those portions of systems intended to handle oxygen at pressure greater than 350 psi
the inter connecting hose shall not contain what materials?
A) brass.
B) copper
C) polymeric
D) stainless steel - ANSWER-C) Polymeric
What type of copper tube hanger shall be used for potentially damp locations?
A) carbon steel
B) copper coated
C) Plastic coated or insulated with material that will be non-absorbent or
D) solid copper - ANSWER-C) Plastic coated or insulated with material that will be non-
absorbent
A patient care room is any room of health care faculty where in patients are being
intended to be?
A) either admitted or discharged
, B) Examined or treated
C) interviewed
D) sent for x-rays - ANSWER-B) Examined or treated
Oxygen cylinders in use and storage shall be prevented from reaching temperatures in
excessive how many degrees Fahrenheit?
A) 100
B) 130
C) 160
D) 190 - ANSWER-B) 130 degrees
Liquid containers shall have additional product identification such as 360 degree wrap
around tape for medical liquid containers visible from all directions within a minimum of
blank high letters?
A) 1 inch
B) 2 inch
C) 3 inch
D) 4 inch - ANSWER-B) 2 inches
The tool shown here allows the installer to mechanically limit the makeup depth of the
fitting to be brazed. Under what condition is this method permitted for the installation of
medical gas piping?
A) only on final line connectors.
B) only on vacuum systems.
C) where only B cup 5 brazing rod is used
D) where the limited makeup depth is not less than minimum cut depth her ANSI /
ASME recommendations - ANSWER-D) Where the limited makeup depth is not less
than minimum cup depth current ANSI\ASME recommendation
What is the standard gauge pressure for nitrogen gas service?
A) 15 - 30
B) 50 - 55
C) 162 185
D) it varies with system type. - ANSWER-C) 50 - 55 psi
What is a NFPA 99 requirement for labeling of pipes in medical gas system?
A) color coding
B) fixed label with
C) label shall wrap completely around pipe.
D) reflective label - ANSWER-A) Color coding
A wireless communication device is employed in a medical gas or vacuum warning
system. what type of supervision is required for this device?
A) a visual indicator Shelby located in maintenance officer or engineering department.
B) this device shall be installed at the medical gas or vacuum source.
C) this device shall be located at nurses station.
AND ANSWERS (GRADED A+)
Under which of these conditions shall the instrument Air Reserve header cylinders be
permitted to be stored with the instrument air compressor?
A) the mechanical equipment room does not contain a boiler.
B) the medical air compressors are in the same room.
C) the only motor-driven machinery in the room is for instrument air equipment.
D) the room is secured with lockable doors. - ANSWER-C) The only motor-driven
machinery in the room is for the instrument air equipment
Riser valves are those valves located where?
A) adjacent to the main riser downstream of any zone valve.
B) anywhere in the lateral branches of the piping system.
C) in the mainline adjacent to the base of the riser.
D) in the riser adjacent to the mainline. - ANSWER-D) In the riser adjacent to the main
line
When is the initial pressure test conducted by the installer?
A) after blowdown of the distribution piping.
B) after installation of alarm sensors.
C) before blowdown of distribution piping.
D) before installation of station rough in assembly. - ANSWER-A) After blow-down of
the distribution piping.
In those portions of systems intended to handle oxygen at pressure greater than 350 psi
the inter connecting hose shall not contain what materials?
A) brass.
B) copper
C) polymeric
D) stainless steel - ANSWER-C) Polymeric
What type of copper tube hanger shall be used for potentially damp locations?
A) carbon steel
B) copper coated
C) Plastic coated or insulated with material that will be non-absorbent or
D) solid copper - ANSWER-C) Plastic coated or insulated with material that will be non-
absorbent
A patient care room is any room of health care faculty where in patients are being
intended to be?
A) either admitted or discharged
, B) Examined or treated
C) interviewed
D) sent for x-rays - ANSWER-B) Examined or treated
Oxygen cylinders in use and storage shall be prevented from reaching temperatures in
excessive how many degrees Fahrenheit?
A) 100
B) 130
C) 160
D) 190 - ANSWER-B) 130 degrees
Liquid containers shall have additional product identification such as 360 degree wrap
around tape for medical liquid containers visible from all directions within a minimum of
blank high letters?
A) 1 inch
B) 2 inch
C) 3 inch
D) 4 inch - ANSWER-B) 2 inches
The tool shown here allows the installer to mechanically limit the makeup depth of the
fitting to be brazed. Under what condition is this method permitted for the installation of
medical gas piping?
A) only on final line connectors.
B) only on vacuum systems.
C) where only B cup 5 brazing rod is used
D) where the limited makeup depth is not less than minimum cut depth her ANSI /
ASME recommendations - ANSWER-D) Where the limited makeup depth is not less
than minimum cup depth current ANSI\ASME recommendation
What is the standard gauge pressure for nitrogen gas service?
A) 15 - 30
B) 50 - 55
C) 162 185
D) it varies with system type. - ANSWER-C) 50 - 55 psi
What is a NFPA 99 requirement for labeling of pipes in medical gas system?
A) color coding
B) fixed label with
C) label shall wrap completely around pipe.
D) reflective label - ANSWER-A) Color coding
A wireless communication device is employed in a medical gas or vacuum warning
system. what type of supervision is required for this device?
A) a visual indicator Shelby located in maintenance officer or engineering department.
B) this device shall be installed at the medical gas or vacuum source.
C) this device shall be located at nurses station.
