Medical Gas 6010 Installers Practice Test
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
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
,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
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
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
When multiple buildings are served from a single cryogenic liquid oxygen source, it is required to place
the emergency oxygen supply connection in _ ? A) each building served B) the building closest to the
source C) the largest building served D) the main building only - Answer-A) each building served
The minimum clearance around EOSC for a temporary source of supply is _ ft? A) 2 B) 3 C) 5 D) 6 -
Answer-B) 3
A(n) _ emergency reserve system can be substituted for the EOSC? A) auxiliary B) backup C) in-building
D) micro-bulk - Answer-C) in-building
The quality medical air shall comply with all of the following standards except? A) be filtered to .01
microns B) have less than 25 ppm gaseous hydrocarbons C) have no detectable hydrocarbons D) meet
the requirements of medical air USP - Answer-A) be filtered to .01 microns
Medical air sources shall only be used for _ ? A) air-operating devices B) human respiratory applications
C) instrument air D) WAGD - Answer-B) human respiratory applications
Medical air compressor systems shall have a pressure relief valve set at _ percent above line pressure?
A) 20 B) 30 C) 40 D) 50 - Answer-D) 50
Medical air compressor systems shall have an automatic means to prevent _ from all on-cycle
compressors through all off-cycle compressors? A) backfire B) backflow C) back pressure D) backup -
Answer-B) backflow
Reciprocating compressors that employ the use of oil can be used for medical air as long as the oil-
containing section is separated from the compression chamber by at least _ seals creating an area open
to the atmosphere? A) 2 B) 3 C) 4 D) 5 - Answer-A) 2
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
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
,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
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
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
When multiple buildings are served from a single cryogenic liquid oxygen source, it is required to place
the emergency oxygen supply connection in _ ? A) each building served B) the building closest to the
source C) the largest building served D) the main building only - Answer-A) each building served
The minimum clearance around EOSC for a temporary source of supply is _ ft? A) 2 B) 3 C) 5 D) 6 -
Answer-B) 3
A(n) _ emergency reserve system can be substituted for the EOSC? A) auxiliary B) backup C) in-building
D) micro-bulk - Answer-C) in-building
The quality medical air shall comply with all of the following standards except? A) be filtered to .01
microns B) have less than 25 ppm gaseous hydrocarbons C) have no detectable hydrocarbons D) meet
the requirements of medical air USP - Answer-A) be filtered to .01 microns
Medical air sources shall only be used for _ ? A) air-operating devices B) human respiratory applications
C) instrument air D) WAGD - Answer-B) human respiratory applications
Medical air compressor systems shall have a pressure relief valve set at _ percent above line pressure?
A) 20 B) 30 C) 40 D) 50 - Answer-D) 50
Medical air compressor systems shall have an automatic means to prevent _ from all on-cycle
compressors through all off-cycle compressors? A) backfire B) backflow C) back pressure D) backup -
Answer-B) backflow
Reciprocating compressors that employ the use of oil can be used for medical air as long as the oil-
containing section is separated from the compression chamber by at least _ seals creating an area open
to the atmosphere? A) 2 B) 3 C) 4 D) 5 - Answer-A) 2
