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Worksheets2024 Practice Test #4
Total questions: 100
Worksheet time: 50mins
Refer to Diagram #4. The configuration of the medical gas components in Area B would be suitable for which of these areas?
Anesthetizing location
Dialysis room
Intensive care unit
Radiology room
Identify the following definition: A drug-induced depression of consciousness during which patients respond purposefully to verbal commands.
General Anesthesia
Deep Sedation
Moderate Sedation
Minimal Sedation
A vacuum receiver shall be capable of withstanding a gauge pressure of ______________.
150 psi and 12 in. Hg
60 psi and 12 in. Hg
150 psi and 30 in. Hg
60 psi and 30 in. Hg
In those portions of the system intended to handle oxygen at pressures greater than 435 psi, the interconnecting hose shall not contain __________ materials.
Brass
Copper
Polymeric
Stainless steel
Which of the following is a factory-assembled product designed for aesthetics or convenience that contains only the secondary valves of medical gas or vacuum outlets, piping or other devices related to medical gases?
Manifold assembly
Manufactured assembly
Manufactured headwall assembly
Manufactured rough-in assembly
The master alarm system shall include an indication when the pressure in the main vacuum line drops to _______ in. HgV or below.
5
10
12
15
A(n) __________ can be used as a substitute for the EOSC at a category 1 facility.
Bulk oxygen source
Emergency plan
In-building emergency reserve
Main line valve
When vacuum systems are used to serve WAGD systems, the area alarm panel(s) used to monitor the area where WAGD is used, shall be labeled to indicate ______________.
vacuum only
WAGD only
the system with the highest vacuum level
both vacuum and WAGD
Piping in medical gas and vacuum distribution systems, shall be blown clear by means of oil-free nitrogen NF. This is done after installation of distribution piping, but before installation of__________________.
station outlet/inlet rough-in assemblies
zone valve boxes
service valves
before any of the listed items
An existing system that is not in strict compliance with 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.
Engineer
Architect
Authority having jurisdiction
Nursing staff
Manifolds for gas cylinders shall consist of _____ equal headers; each with one average day’s supply,
but not fewer than _____ connections.
Two - Two
One - One
Four - Four
Three - Three
When vacuum systems are used to serve WAGD systems, valves on the source side of the connection to WAGD, shall be labeled to indicate ______________.
vacuum only
WAGD only
the system with the highest vacuum level
both vacuum and WAGD
The complete source of supply for a medical gas or vacuum system or a medical support gas system?
Central supply system
Compressed medical gases
EOSC
Medical air compressor
A ________ is an extensive compilation of provisions covering broad subject matter, or that is suitable for adoption into law independently.
Code
Standard
Guide
None of the choices are correct
Underground piping buried outside of buildings, shall be installed below the local level of frost penetration, and shall be protected from physical damage while being backfilled by a(n) _____________.
Conduit
Enclosure
Cover
Any of the methods listed are acceptable
The control mechanisms on positive pressure supply system shall provide what percentage of the peak calculated demand?
50%
100%
150%
200%
It is NOT permissible to pipe & utilize medical gases such as oxygen for which of these purposes?
Direct respiration by patients
General utility, such as moisture removal from instruments
Operating medical equipment that is only intended for patient use
Simulation centers for the assessment of healthcare specialists
Final line regulators, when used for bulk cryogenic liquid systems shall be of a ________ design.
Straight through
Parallel
Balanced
None of the choices listed
Brazing procedures and brazer performance for the installation of medical gas and vacuum piping shall be qualified in accordance with __________.
ASME Section IX
ASSE 6010
AWS B31.3
ASSE 6030
What does it mean when equipment, material or services are shown as “listed”?
They are identified and published by an organization that is acceptable to the authority having jurisdiction
The have been found tolerable for the purpose described in the manufacturer’s specifications
They have been tested and approved by the construction supervisor
They have been tested by a medical gas verifier
A vacuum exhaust shall NOT discharge __________.
On a roof
Outside
In a place of public assembly
At a different level from air intakes
Cryogenic fluid central supply systems shall have a minimum work space clearance of____ feet, around the storage container, vaporizer(s), and cabinet opening, or the front side of the pressure-regulating manifold for maintenance.
3
4
5
6
Central supply systems, located outdoors, shall meet all EXCEPT which of the following requirements?
Allow for clear access for the management of cylinders
Be greater than 200 square feet
Be provided with an enclosure constructed of noncombustible material
Be well drained
A ________ system is an assembly of equipment such as storage containers, pressure regulators, pressure relief devices, vaporizers, manifolds, and interconnecting piping that has a storage capacity of more than 20,000 cubic feet (at normal temperature and pressure), including unconnected reserves on hand at the site.
high pressure manifold
micro bulk
vacuum
none of the answers listed are correct
Which of the following is required of the check valves in an EOSC?
Both valves are located downstream from the tee connection
One valve is located downstream of the main line shutoff valve
One valve is located upstream of the EOSC
Both valves are located downstream from the tee connection and one valve is located downstream of the main line shutoff valve
In compliance with NFPA 70, the new alarm wiring is being run installed underground, from the initiating device at the source to a junction box located where the wiring first enters the building. NFPA 99 permits what minimum number of sets of wires, to connect the initiating device with the junction box for each signal?
1
2
3
4
For the initial pressure test for pressure gases and vacuum systems, the test pressure shall be maintained until _______________ have been examined for leakage.
25 % of joints in each zone
50 % of joints in each zone
75 % of joints in each zone
100 % of joints in each zone
The exterior surface of tube ends shall be __________ prior to brazing.
tinned
annealed
reamed
cleaned
A chemical element that, at normal atmospheric temperatures and pressures, exists as a colorless, odorless and tasteless gas and compromises about 21% of the earth’s atmosphere by volume.
Oxygen
Nitrogen
Nitrous oxide
Helium
Who shall witness the installer perform the standing pressure test?
The installing contractor superintendent
The medical gas verifier
The authority having jurisdiction or its designee
The medical gas verifier or the authority having jurisdiction or its designee
____________ copper fittings shall not be permitted in medical gas systems.
Type L
Wrought
Cast
Type K
Which of the following is NOT a design or construction requirement for other than cryogenic positive-pressure central supply systems, located outdoors?
Cylinders and containers shall be protected from prolonged contact with soil
Shall be provided with accessible gates if greater than two-hundred (200) square feet
Shall be provided with an enclosure of noncombustible material
Be well drained
The cryogenic fluid central supply system shall have a local signal that visibly indicates the operating status, and an indicator at all master alarms, when or at a predetermined set point before the reserve supply falls to an average day’s supply indicating ____________.
system failure
low reserve
low contents
secondary in use
Local alarms shall be installed to monitor the_______________.
main line
bulk system
reserve system
source equipment
Refer to Diagram #7. In this oxygen main installation, what is the name for the component at #5?
Check valve
Connection point
Line pressure alarm
Relief vent line
Which of the following is NOT a requirement of a bulk oxygen system installed to supply compressed gas?
Consists of stationary or movable storage containers
Maximum storage capacity must be 25,000 cubic feet
Cubed source gas is stored as a compressed gas or a cryogenic fluid
Terminates where the gas, at service pressure, first enters the main line
If underground piping is protected by a conduit, cover or other enclosure, access shall be provided at _________ prior to backfilling for visual inspection and leak checking.
ends
joints
turns
drops
Station outlets/inlets shall be identified as to the __________ for the specific gas or vacuum provided.
Name
Chemical symbol
Name or chemical symbol
Piping type
The vertical pipes connecting the system main line(s) with the branch lines on the various levels of the facility. This is the definition of which of the following?
Risers
Branch (lateral) lines
Vent lines
Main lines
The interior surfaces of tube ends, fittings, and other components that were cleaned for oxygen service by the manufacturer, but became contaminated prior to being installed, shall be permitted to be recleaned on-site. The cleaning solution that is NOT against the approved method is __________________.
GOOP hand cleaner with potable water
gray water with potable water
trisodium phosphate with potable water
rubbing alcohol with potable water
A tool is allowed to be used by the installer, to mechanically limit the make-up depth of the fitting to be brazed. Under what conditions is this method permitted, for the installation of medical gas piping?
Where limited depth is not less than the minimum cup depth per ANSI/ASME B16.50
Only on vacuum systems
Only where BCuP 5 brazing rod is used
Only on final line connections
Refer to diagram 4. The sensor indicated at #5 is a __________.
Master alarm sensor
Area alarm sensor
Local alarm sensor
Emergency alarm sensor
Manifolds for gas cylinders & manifolds for cryogenic liquid containers share which of these requirements?
Each header shall have a minimum of 3 connections
Each manifold shall be located indoors
Primary & secondary headers shall be located in the same enclosure
The reserve headers shall provide sufficiently for one average day
In a facility where medical gas or vacuum systems are present, and the failure of such equipment or system is likely to cause imminent major injury or death to patients or caregivers, the system shall be designed to meet which Category requirements?
1
2
3
4
Cylinder and cryogenic liquid container connections shall be affixed in such a manner as to be integral to the valve, unremovable with ordinary tools or so designed as to render the attachment point _________ when removal of the outlet connection is attempted.
Universal
Reusable
Unusable
Unsuitable
The locations for medical gas central supply systems and storage of positive pressure gases, excluding cryogenic fluid central supply systems, requiring heating to maintain compliant enclosure temperatures, shall meet which of the following requirements?
Compliant fuel-fired heating equipment permitted in the same room
If in a secured location, racks and chains are not required
In-room heating element maximum temperature of 266 degrees F
Shall be under continuous surveillance
The gas produced by evaporation from the secondary header in a cryogenic liquid container system, shall enter the supply system __________ of the final line regulator.
Not required
Downstream
Upstream
Upstream of the filter
Application of the NFPA 99 shall apply to all EXCEPT which of the following?
Healthcare facilities
Hyperbaric chambers for veterinary care facilities
Veterinary Facilities
None of the above
Identify the following definition: A drug-induced loss of consciousness during which patients are not arousable, even by painful stimulation.
General Anesthesia
Deep Sedation
Moderate Sedation
Minimal Sedation
Manifolds for cryogenic containers, if located outdoors, shall be installed so that a minimum ______ feet exists between portable cryogenic containers and room exits.
3
5
10
15
Locations for central supply systems (excluding fluid central supply systems) shall meet which of the following requirements?
If indoors shall have interior finishes of noncombustible or limited combustible materials
Shall be constructed with access to move equipment and cylinders
Shall be provided with lockable doors, gates or able to be secured
Required to meet all that are listed
Electrical installation and wiring for medical-surgical vacuum pumps,
shall conform to the requirements of______.
NFPA 99
NFPA 55
NFPA 70
NFPA 72
Pressure relief valve shall meet which of the following requirements?
Constructed of brass or bronze
Shall have the pressure relief setting not more than 5 percent higher than the maximum allowable working pressure of the system served
They may discharge in unoccupied rooms
They shall be designed for the specific gas service
Which of these is a requirement for area alarm panels?
Located at a nurses station and in the engineering department
Monitored 24/7 continuously
Provide visual and audible indication
Provide dew point sensors for the area monitored
Which of the following filler metals shall be used to braze copper-to-copper joints in medical gas/vacuum distribution piping?
BCuP series
BNi series
BAg series
BAu series
Vacuum producers designed for operation at vacuums below 5 in. Hg shall ______________ and not employed for other services.
be used for WAGD service
be used for medical-surgical vacuum
be used for cleaning equipment
not be allowed in a Category 1 facility
The purpose of the NFPA 99 code is to provide minimum requirements for the __________ for facilities material, equipment, and appliances, including other hazards associated with primary hazards.
Engineering and architecture
Maintenance and testing
Performance and safe practices
Maintenance, testing, performance and safe practices
Refer to Diagram 4, identify Area C.
Category 1 space
Category 4 space
Emergency room space
Future space
Area alarm sensors shall be located on the _____________ of a zone valve for anesthetizing locations.
patient or use side
source side
downstream side
patient or use side, or the source side
Compressed gas cylinders must meet which of the following criteria, in order to be acceptable for use in an acute health care facility?
Be appropriately identified by labels or stencils in accordance with CGA C-7 criteria
Utilize gas specific CGA connections
Be appropriately color coded in accordance with U.S.D.A. requirements
Be constructed in accordance with specifications and regulations of OSHA
Hard-drawn seamless copper in medical gas systems shall be type L, except when the diameter exceeds NPS 3" (3.125" O.D.), ____________ shall be used.
type K
type M
type DWV
type ACR
Under which of the following conditions is it permissible to perform work as an ASSE 6010 installer?
When brazing specification and procedure qualification records meet the requirements of NFPA 99
When working directly with a certified installer
When working for a contractor who obtains a copy of jobsite brazing procedure specs in advance of work
When workers, not certified in brazing procedures, are overseen by someone who is ASSE 6010 certified installer
Final line pressure controls shall be sized to ________ of the peak calculated demand.
50%
100%
150%
200%
The Emergency Oxygen Supply Connection (EOSC), shall consist of all EXCEPT which of the following requirements?
A minimum of 3.5' of clearance around the exterior of the building being served
4 alarm connection points installed to both master alarm panels
A manual shutoff valve to isolate the EOSC when not in use
Valves necessary to allow connection to the EOSC and isolation to the normal source supply
____________ shall only be used when brazing dissimilar metals, such as copper and bronze or brass, using a BAg series filler metal.
solder
PVC cement
ABS cement
None of the listed materials are acceptable
Which of the following is considered a medical support gas?
Carbon dioxide
Medical Air
Nitrogen
Nitrogen NF
While brazing medical-gas copper joints, a purge gas shall flow continuously to prevent the formation of copper oxide on the inside surface of the joint. What shall be used as a purge gas?
Oil-less, dry Nitrogen NF
Oil-free, dry Argon MD
Any inert gas
Oil-free, dry Nitrogen NF
The master alarm system shall include an indication from each WAGD site, when the vacuum level or flow is below effective operating limits indicating _______________.
vacuum low
system failure
WAGD low
no alarms are required
When an installer installs products or devices not designated by code, the items shall have supporting technical documentation approved by which of the following?
AHJ
Design engineer
Medical professional
Quality control representative
Bulk cryogenic liquid systems shall be installed in accordance with ________.
CGA 50
CGA 55
NFPA 45
NFPA 55
The reserve header in a cryogenic liquid cylinder manifold system shall have sufficient cylinder connections for an average day’s supply, but not fewer than how many connections?
2
3
4
5
Which category would a system be classified, where failure is unlikely to cause minor injury of patients, staff or visitors?
Category 1
Category 2
Category 3
Category 4
Wooden racks for cylinder storage may be permitted under which conditions?
The wood must be painted
They are permitted with NO set conditions
Wooden racks are no longer permitted
They must be located in an area with a fire suppression system
Branch connections made by mechanically formed, and extruded tee-branch connections, shall be prohibited in which systems?
CMT
ASTM B88
ASTM B280
ASTM B819
The pressure in the main line of each medical gas system, the operation and condition of the source of supply, and the reserve source (if any) shall be monitored at the _________ alarm.
Local
Area
Master
All alarm locations
Which of the following is NOT a requirement for manifolds for cryogenic liquid containers?
Compliant reserve header shall have a minimum of three connections
Compliant reserve header shall have sufficient number of gas cylinder connections for one average day supply
Manifolds shall be required to be located indoors
Primary and secondary headers shall be located in the same enclosure
A facility is in the planning stages of installing an emergency oxygen supply connection (EOSC). How many feet is the minimum clearance around this connection?
1
3
5
1.5 x the width of the auxiliary source for service to the system
For positive pressure medical gas systems, hard-drawn seamless copper
shall be used in accordance with ________.
ASTM A312
ASTM A269
ASTM B280
ASTM B819
A gauge reading exceeding 200 psig in a piping system is defined as which type of pressure?
Absolute
Gauge
High
Positive
What is the portion of the central supply system, supplying the piping system at the time of observation?
Operating supply
Primary supply
Reserve supply
Secondary supply
For medical-surgical vacuum systems greater than 5 in. HgV, piping shall be stainless steel tube type _____.
ASTM A269
ASTM A312
ASTM A312 TP
Any of the listed types are acceptable
Which of the following would describe an assembly of equipment for supplying compressed gas that terminates where the gas at service pressure first enters the mainline? The source gas is stored as a compressed gas or cryogenic fluid in storage containers that are either stationary or movable, and include unconnected reserves at the site.
Bulk system
Compact system
Essential supply system
Main supply pad
Which of the following is labeled incorrectly?
Medical-surgical vacuum with green background and white text
Oxygen with green background and white text
Medical air with yellow background and black text
Medical-surgical vacuum with white background and black text
In a cryogenic fluid supply system, when the reserve’s supply contents are reduced to one average day’s supply, which alarm system(s) shall be activated?
Area
Local
Master
Area and master
Final line filters for instrument air shall be equipped with a __________ visual indicator showing the status of the filter element life.
Optional
Alternating
Continuous
Pulsating
Metallic and nonmetallic flexible connectors used in the pipeline for vibration control. Which of the following is NOT required of such joints?
Received on the jobsite with a certification of cleanliness
Provided with extensions for brazing into the pipeline
Able to withstand temperatures of 1000º F
Suitable for service at 150 psig or above
For medical-surgical vacuum systems greater than 5 in. HgV, piping shall be permitted to be CMT in accordance with __________.
NFPA 55
AWS B2.2
NFPA 70
None of the listed types are acceptable
A central supply system with a storage capacity of more than 3200 pounds at normal temperature and pressure, best describes which system?
Bulk Cryogenic Fluid Central Supply System
Bulk Nitrous Oxide Central Supply System
Cylinder System
Micro Bulk Cryogenic Fluid Central Supply system
Those sections or portions of the piping system, that serve a room or group of rooms on the same story of the facility. This is the definition of which of the following?
Main lines
Branch (lateral) lines
Risers
Vent lines
Qualified individuals installing CMT shall do so in accordance with which of the following?
ASSE 6010
Facility Engineering
Manufacturer’s instructions
Qualified contractor
Carbon dioxide cylinders shall NOT reach temperatures greater than how many degrees Fahrenheit?
110
120
125
135
Refer to diagram 4. The valve labeled #1 is a __________.
In-line Valve
Service Valve
Main line valve
Emergency shutoff valve
What is the standard gauge pressure (psi) for instrument air gas service?
0 - 300
50 - 55
160 - 185
It varies with system type
Where existing, the portion of the supply equipment that automatically supplies the system, when the primary and secondary are unable.
Back-up source
Secondary source
Emergency supply
Reserve supply
Pressure relief valves shall be constructed of which of the following materials?
Brass, bronze or copper
Brass, copper or stainless steel
Brass, bronze or stainless steel
Stainless steel or copper
Cylinders in use and in storage shall be prevented from reaching temperatures in excess of ________.
120º F
125º F
130º F
150º F
Materials used in a central supply system, if intended for outdoor installation, shall meet which of the following requirements?
Be installed per manufacturer’s requirements
If exposed to cryogenic temperatures, be designed for low temperatures
If exposed to cryogenic temperatures, be designed for mixtures of gases containing no more than 23.5% oxygen
Be installed per manufacturer’s requirements and if exposed to cryogenic temperatures, be designed for low temperatures
Medical gas central supply systems are NOT permitted to be located where?
Outdoors
Remote from the medical gas use points
In the same storage facility as gas cylinders
In an unlocked location
A low-pressure, vacuum-insulated vessel containing gases in liquid form. This is an NFPA 99 definition for which of the following?
Container
Safety can
Appliance
Cylinder
Locations for central supply systems shall have electrical devices protected from __________.
Unauthorized use
Moisture
Freezing temperatures
Physical damage
