NRCME (DOT) PRACTICE
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ What kind of indication do All master, area, and local alarm systems use for
medical gas and vacuum systems?.
Answer: Audible and Visual
◍ An existing system that is not in strict compliance with the provisions of this
code shall be permitted to be continued in use as long as the _ has
determined that such use does not constitute a distinct hazard to life. A)
architect B) authority having jurisdiction C) engineer D) nursing staff.
Answer: B) authority having jurisdiction
◍ Cylinder and cryogenic liquid container outlet connections shall be designed
as to render the attachment point _ when removal of the outlet connection is
attempted. A) reusable B) unusable C) unsuitable D) universal.
Answer: B) unusable
◍ Cylinders in use and in storage shall be prevented from reaching
temperatures in excess of _ *
F. A) 120 B) 125 C) 130 D) 135.
Answer: B) 125
◍ Where master alarm initiating devices are remote from the building and the
wiring is to run underground, the following exception shall be permitied to
be used, ______set(s) of compliant wires.
Answer: 1 (a single)
◍ The removal of components within a source system for repair and
re-installation or for replacement shall be treated as new work for the
purposes of testing whenever such work involves which of the following?.
, Answer: cutting and/or brazing new piping
◍ Nitrous oxide and carbon dioxide using cylinders or portable containers
shall be prevented from reaching temperatures lower than _ *F A) 130
B)125 C) 20 D) -20.
Answer: C)20
◍ Which of the following systems shall not be permitted to be located in an
outdoor enclosure? A) bulk cryogenic liquid cylinders B) manifolds for gas
cylinders C) manifolds for cryogenic liquid containers D) medical air
sources.
Answer: D) medical air sources
◍ Indoor locations for oxygen, nitrous oxide, and mixtures of these gases shall
not communicate with any of the following except _? A) area with open
flames B) designated storage area C) engines D) kitchens.
Answer: B) designated storage area
◍ Who shall witness the installer-performed standing vacuum test?.
Answer: the authority having jurisdiction, or its designee
◍ In an Emergency Oxygen Supply Connection (EOSC) check valves are
required to be constructed of which of the following materials?.
Answer: brass or bronze
◍ in those portions of central supply systems intended to handle oxygen at
gauge pressures greater than 435 psi, interconnecting hose shall contain no
_______materials.
Answer: Polymeric
◍ Locations for central supply systems shall have _ devices protected from
physical damage? A) electrical B) pressure indicating C) regulating D)
relief.
Answer: A) electrical
◍ Outdoor locations surrounded by impermeable walls, except fire barrier
walls, shall have protected ventilation openings at the _ of each wall to
, allow free circulation of air within the enclosure? A) base B) corner) C)
middle D) top.
Answer: A) base
◍ A cryogenic fluid central supply system contains parallel-piped duplex line
pressure regulators. Which of the following is a requirement for controls for
line pressure?.
Answer: A balanced design
◍ As referenced in the NFPA99, a pressure of 216 psi in a system would be
defined as which type of pressure?.
Answer: High
◍ All positive pressure supply systems shall be provided with duplex line
pressure regulators piped in _? A) circuit B) loop C) parallel D) series.
Answer: C) parallel
◍ All pressure relief valves shall be made of brass, bronze, or _? A) carbon
steel B) cast iron C) copper D) stainless steel.
Answer: D) stainless steel
◍ Which of the following conditions must be met where medical gas and
vacuum systems are installed by non-certified personnel?.
Answer: installation by anyone other than 6010 certified porsonnel is NOT
permitted
◍ What shall Area alarm panels for medical gas systems provide in the event a
mismatch occurs between the transducer(s) and its associaled circuit
board(s)..
Answer: visual and audible indication
◍ Fittings shall be permitted to be recleaned on-site by the installer by
thoroughly scrubbing the interior surfaces with a clean _______ and
thoroughly rinsing them withclean, hot, potable water..
Answer: Hot water-alkaline solution
◍ Which of the following valves is permitted to be installed to isolate or shut
, off piping for servicing of individual rooms or areas?.
Answer: Zone valve
◍ Central supply systems for positive pressure gases shall have one or more
relief valves, the valves shall have a relief setting that is _% above normal
working operating pressure? A) 30 B) 40 C) 50 D) 60.
Answer: C) 50
◍ When vented to the outside, relief valve vent lines shall be labeled in which
way? A) adhesive markers B) any manner that will distinguish them from
the medical gas pipeline C) stenciling D) stickers.
Answer: B) any manner that will distinguish them from the medical gas
pipeline
◍ An auxiliary source connection shall consist of all of the following except?
A) removable plug or cap B) tee C) valve D) visual pressure indicator.
Answer: D) visual pressure indicator
◍ In central supply systems using gas or liquid cylinders, each header shall
have a _ to prevent debris from entering the manifold controls? A) check
valve B) filter C) monitor D) relief valve.
Answer: B) filter
◍ Manifolds for gas cylinders shall consist of two equal headers, each with
enough cylinders for an average day's supply, but not fewer than _
connections? A) 5 B) 4 C) 3 D) 2.
Answer: D) 2
◍ Manifolds for gas cylinders shall have a(n) _ signal that visibly indicates the
operating status of the equipment and shall activate an indicator at all master
alarm panels when or just before changeover from one header to the other
takes place? A) area B) master C) local D) zone.
Answer: C) local
◍ Which of the following is a TRUE statement of Category 1 medical support
gases?.
Answer: Primarily used for powering equipment used in patient care
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ What kind of indication do All master, area, and local alarm systems use for
medical gas and vacuum systems?.
Answer: Audible and Visual
◍ An existing system that is not in strict compliance with the provisions of this
code shall be permitted to be continued in use as long as the _ has
determined that such use does not constitute a distinct hazard to life. A)
architect B) authority having jurisdiction C) engineer D) nursing staff.
Answer: B) authority having jurisdiction
◍ Cylinder and cryogenic liquid container outlet connections shall be designed
as to render the attachment point _ when removal of the outlet connection is
attempted. A) reusable B) unusable C) unsuitable D) universal.
Answer: B) unusable
◍ Cylinders in use and in storage shall be prevented from reaching
temperatures in excess of _ *
F. A) 120 B) 125 C) 130 D) 135.
Answer: B) 125
◍ Where master alarm initiating devices are remote from the building and the
wiring is to run underground, the following exception shall be permitied to
be used, ______set(s) of compliant wires.
Answer: 1 (a single)
◍ The removal of components within a source system for repair and
re-installation or for replacement shall be treated as new work for the
purposes of testing whenever such work involves which of the following?.
, Answer: cutting and/or brazing new piping
◍ Nitrous oxide and carbon dioxide using cylinders or portable containers
shall be prevented from reaching temperatures lower than _ *F A) 130
B)125 C) 20 D) -20.
Answer: C)20
◍ Which of the following systems shall not be permitted to be located in an
outdoor enclosure? A) bulk cryogenic liquid cylinders B) manifolds for gas
cylinders C) manifolds for cryogenic liquid containers D) medical air
sources.
Answer: D) medical air sources
◍ Indoor locations for oxygen, nitrous oxide, and mixtures of these gases shall
not communicate with any of the following except _? A) area with open
flames B) designated storage area C) engines D) kitchens.
Answer: B) designated storage area
◍ Who shall witness the installer-performed standing vacuum test?.
Answer: the authority having jurisdiction, or its designee
◍ In an Emergency Oxygen Supply Connection (EOSC) check valves are
required to be constructed of which of the following materials?.
Answer: brass or bronze
◍ in those portions of central supply systems intended to handle oxygen at
gauge pressures greater than 435 psi, interconnecting hose shall contain no
_______materials.
Answer: Polymeric
◍ Locations for central supply systems shall have _ devices protected from
physical damage? A) electrical B) pressure indicating C) regulating D)
relief.
Answer: A) electrical
◍ Outdoor locations surrounded by impermeable walls, except fire barrier
walls, shall have protected ventilation openings at the _ of each wall to
, allow free circulation of air within the enclosure? A) base B) corner) C)
middle D) top.
Answer: A) base
◍ A cryogenic fluid central supply system contains parallel-piped duplex line
pressure regulators. Which of the following is a requirement for controls for
line pressure?.
Answer: A balanced design
◍ As referenced in the NFPA99, a pressure of 216 psi in a system would be
defined as which type of pressure?.
Answer: High
◍ All positive pressure supply systems shall be provided with duplex line
pressure regulators piped in _? A) circuit B) loop C) parallel D) series.
Answer: C) parallel
◍ All pressure relief valves shall be made of brass, bronze, or _? A) carbon
steel B) cast iron C) copper D) stainless steel.
Answer: D) stainless steel
◍ Which of the following conditions must be met where medical gas and
vacuum systems are installed by non-certified personnel?.
Answer: installation by anyone other than 6010 certified porsonnel is NOT
permitted
◍ What shall Area alarm panels for medical gas systems provide in the event a
mismatch occurs between the transducer(s) and its associaled circuit
board(s)..
Answer: visual and audible indication
◍ Fittings shall be permitted to be recleaned on-site by the installer by
thoroughly scrubbing the interior surfaces with a clean _______ and
thoroughly rinsing them withclean, hot, potable water..
Answer: Hot water-alkaline solution
◍ Which of the following valves is permitted to be installed to isolate or shut
, off piping for servicing of individual rooms or areas?.
Answer: Zone valve
◍ Central supply systems for positive pressure gases shall have one or more
relief valves, the valves shall have a relief setting that is _% above normal
working operating pressure? A) 30 B) 40 C) 50 D) 60.
Answer: C) 50
◍ When vented to the outside, relief valve vent lines shall be labeled in which
way? A) adhesive markers B) any manner that will distinguish them from
the medical gas pipeline C) stenciling D) stickers.
Answer: B) any manner that will distinguish them from the medical gas
pipeline
◍ An auxiliary source connection shall consist of all of the following except?
A) removable plug or cap B) tee C) valve D) visual pressure indicator.
Answer: D) visual pressure indicator
◍ In central supply systems using gas or liquid cylinders, each header shall
have a _ to prevent debris from entering the manifold controls? A) check
valve B) filter C) monitor D) relief valve.
Answer: B) filter
◍ Manifolds for gas cylinders shall consist of two equal headers, each with
enough cylinders for an average day's supply, but not fewer than _
connections? A) 5 B) 4 C) 3 D) 2.
Answer: D) 2
◍ Manifolds for gas cylinders shall have a(n) _ signal that visibly indicates the
operating status of the equipment and shall activate an indicator at all master
alarm panels when or just before changeover from one header to the other
takes place? A) area B) master C) local D) zone.
Answer: C) local
◍ Which of the following is a TRUE statement of Category 1 medical support
gases?.
Answer: Primarily used for powering equipment used in patient care
