MED GAS TEST
Dental air is compressed gas intended to be used to operate dental
devices and is permitted toe be supplied by which of the following
sources?
A. Carbon dioxide
B. Compressed air system, pressurized cylinders of air, or nitrogen
C. Instrument air and carbon dioxide
D. Nitrogen and carbon dioxide - ANSWERS-B. Compressed air
system, pressurized cylinders of air, or nitrogen
A system used in dentistry for oral evacuation and nitrous
oxide/oxygen scavenging
A. Category 4 vacuum pump system
B. Dental vacuum/scavenging system
C. Medical surgical vacuum
D. WAGD system - ANSWERS-B. Dental vacuum/scavenging system
Locations for central supply systems (excluding cryogenic fluid
central supply systems) shall meet which of the following
requirements?
A. If indoors, they shall have interior finishes of noncombustible or
limited combustible materials
B. Shall be constructed with access to move equipment and cylinders.
,C. They shall be provided with lockable doors, gates or able to be
secured
D. All of the above - ANSWERS-D. All of the above
Compressed gas cylinders must meet all EXPEPT which of the
following criteria in order to bear acceptable for use in an acute
healthier care facility?
A. Contents are appropriately identified with stencils or labels
B. Identified with black makers
C. Labels for liquid containers shall have 2" lettering
D. Labels shall not be altered or removed - ANSWERS-B. Identified
with black makers
Which of the following is true in a Category 1 support gases?
A. May convey oxidizing gases other than air
B. Permitted to power equipment used in patient care procedures
C. Subject to greater hazards, then present in other piped gases
D. Shall not be permitted to be used for greater utility uses -
ANSWERS-B. Permitted to power equipment used in patient care
procedures
Pressure relief valves shall meet which of the following requirements?
A. Constructed of brass or bronze
B. Shall have a relief pressure setting not more than 5% higher than
the maximum allowable working pressure of the system served
C. They may discharge in unoccupied rooms
,D. They shall be designed for the specific gas service - ANSWERS-D.
They shall be designed for the specific gas service
The ____shall furnish documentation certifying that tubes, valves,
fittings and other piping components have been cleaned______by the
manufacturer or by a supplier or agency other than the manufacturer
to cga-4.1
A. AHJ, to ANSI G-4.2
B. Inspector, for human application
C. Installer, for oxygen service
D. Verifier, to FDA standards - ANSWERS-C. Installer, for oxygen
service
Which of the following shall require the installer to provide
documentation prior to any installation of a Category 2 medical gas
system?
A. Brazed piping
B. Dental equipment hook up
C. Future piping connections
D. Installer braze log - ANSWERS-A. Brazed piping
After completion of all installer-performed tests, the code allows for
which of these methods to be used to determine that no cross-
connection exists?
A. Individual pressurization to 150 psi
B. Individual pressurization and pressure differential
, C. Pressure differential or 30 psi above normal operating pressures
D. None of the above - ANSWERS-B. Individual pressurization and
pressure differential
When is the initial pressure test conducted, by a Medical Gas installer,
on a nitrous oxide system?
A. after blowdown of a distribution piping
B. After installation of alarm sensors
C. Before blow down of distribution piping
D. Before installation of station rough-in-assemblies - ANSWERS-A.
after blowdown of a distribution piping
In those portions of systems intended to handle oxygen at pressures
greater than 350 psi, the interconnecting hose shall NOT
contain______materials.
A. Brass
B. Copper
C. Polymeric
D. Stainless Steel - ANSWERS-C. Polymeric
In a Category 1 Dental and Gas Vacuum Piping system, which of the
following is an NFPA 99 requirement for the labeling of pipes?
A. Color coding
B. Fixed label width
C. Label shall wrap completely around the pipe
Dental air is compressed gas intended to be used to operate dental
devices and is permitted toe be supplied by which of the following
sources?
A. Carbon dioxide
B. Compressed air system, pressurized cylinders of air, or nitrogen
C. Instrument air and carbon dioxide
D. Nitrogen and carbon dioxide - ANSWERS-B. Compressed air
system, pressurized cylinders of air, or nitrogen
A system used in dentistry for oral evacuation and nitrous
oxide/oxygen scavenging
A. Category 4 vacuum pump system
B. Dental vacuum/scavenging system
C. Medical surgical vacuum
D. WAGD system - ANSWERS-B. Dental vacuum/scavenging system
Locations for central supply systems (excluding cryogenic fluid
central supply systems) shall meet which of the following
requirements?
A. If indoors, they shall have interior finishes of noncombustible or
limited combustible materials
B. Shall be constructed with access to move equipment and cylinders.
,C. They shall be provided with lockable doors, gates or able to be
secured
D. All of the above - ANSWERS-D. All of the above
Compressed gas cylinders must meet all EXPEPT which of the
following criteria in order to bear acceptable for use in an acute
healthier care facility?
A. Contents are appropriately identified with stencils or labels
B. Identified with black makers
C. Labels for liquid containers shall have 2" lettering
D. Labels shall not be altered or removed - ANSWERS-B. Identified
with black makers
Which of the following is true in a Category 1 support gases?
A. May convey oxidizing gases other than air
B. Permitted to power equipment used in patient care procedures
C. Subject to greater hazards, then present in other piped gases
D. Shall not be permitted to be used for greater utility uses -
ANSWERS-B. Permitted to power equipment used in patient care
procedures
Pressure relief valves shall meet which of the following requirements?
A. Constructed of brass or bronze
B. Shall have a relief pressure setting not more than 5% higher than
the maximum allowable working pressure of the system served
C. They may discharge in unoccupied rooms
,D. They shall be designed for the specific gas service - ANSWERS-D.
They shall be designed for the specific gas service
The ____shall furnish documentation certifying that tubes, valves,
fittings and other piping components have been cleaned______by the
manufacturer or by a supplier or agency other than the manufacturer
to cga-4.1
A. AHJ, to ANSI G-4.2
B. Inspector, for human application
C. Installer, for oxygen service
D. Verifier, to FDA standards - ANSWERS-C. Installer, for oxygen
service
Which of the following shall require the installer to provide
documentation prior to any installation of a Category 2 medical gas
system?
A. Brazed piping
B. Dental equipment hook up
C. Future piping connections
D. Installer braze log - ANSWERS-A. Brazed piping
After completion of all installer-performed tests, the code allows for
which of these methods to be used to determine that no cross-
connection exists?
A. Individual pressurization to 150 psi
B. Individual pressurization and pressure differential
, C. Pressure differential or 30 psi above normal operating pressures
D. None of the above - ANSWERS-B. Individual pressurization and
pressure differential
When is the initial pressure test conducted, by a Medical Gas installer,
on a nitrous oxide system?
A. after blowdown of a distribution piping
B. After installation of alarm sensors
C. Before blow down of distribution piping
D. Before installation of station rough-in-assemblies - ANSWERS-A.
after blowdown of a distribution piping
In those portions of systems intended to handle oxygen at pressures
greater than 350 psi, the interconnecting hose shall NOT
contain______materials.
A. Brass
B. Copper
C. Polymeric
D. Stainless Steel - ANSWERS-C. Polymeric
In a Category 1 Dental and Gas Vacuum Piping system, which of the
following is an NFPA 99 requirement for the labeling of pipes?
A. Color coding
B. Fixed label width
C. Label shall wrap completely around the pipe
