Worksheets2024 Practice Test #3
Total questions: 100
Worksheet time: 50mins
System inspections shall be performed prior to concealing piping distribution systems in ________.
walls
ceilings
chases
any of the listed locations
Which of the following does NFPA 99 consider NOT an acceptable qualification for an individual performing maintenance on a Category 1 medical gas system?
ASSE 6010
ASSE 6030
ASSE 6040
Documented training program
Master alarm panels shall NOT communicate ___________ to the alarm initiating devices they monitor.
directly
indirectly
directly or indirectly
there is no specification in NFPA 99
Threaded joints shall be made up with ________________ recommended for oxygen service.
polyvinylchloride tape
potlytetrafluoroehtylene tape
polypropylene tape
polyimide tape
Receivers for medical air shall be equipped with ____________.
Relief valves
Automatic and manual drains
Sight glass
All of the equipment listed is required
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 main supply falls to an average day’s supply indicating ____________.
system failure
maintenance needed
low contents
secondary in use
The master alarm system shall include an indication when the pressure in the main line increases or decreases _______ % from normal oprating pressure.
10
20
30
50
Which of the following is not prohibited, throughout medical gas and vacuum distribution pipeline systems?
Flared and compression type connections
Memory metal fittings
Removable and nonremovable push-fit fittings
Pipe-crimping tools used to permanently stop flow of piping
Brazed joints shall be made using a brazing alloy that exhibits a melting temperature in excess of ________, to retain the integrity of the piping system in the event of fire.
800º F
1000º F
1200º F
1500º F
Natural ventilation shall have the opening(s) located ________ and located to ensure cross ventilation.
within 1 ft. of the floor
within 1 ft. of the ceiling
within 1 ft. of the floor and within 1 ft. of the ceiling
there are no guidelines regarding placement of the opening(s)
Which of these is NOT an NFPA 99 requirement for the labels on patient medical gas piping
at standard pressure?
Labeled using stenciling or adhesive markers
The name or chemical symbol of the gas
The operating pressure
The system color
An oxygen outlet having a minimum flow of 3.5 SCFM, shall have a pressure drop of not more than _________ for the operational flow pressure drop test.
5 psi
10 psi
15 psi
20 psi
Which of the following systems shall not be permitted to be located in an outdoor enclosure?
Manifolds for cryogenic liquid containers
Manifolds for gas cylinders
Medical air compressor sources
Bulk cryogenic liquid systems
The final connection between new piping and an existing system, may be tested with the system gas and must be checked with a leak detectant that does Not contain which of these agents?
Chlorine
Acetone
Freon
Ammonia
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
Carbon dioxide cylinders shall NOT reach temperatures greater than how many degrees Fahrenheit?
110
115
120
125
Medical air compressor intake shall be located outdoors a minimum distance of __ above the ground level.
10 ft
15 ft
20 ft
25 ft
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
If underground piping is protected by a conduit, cover or other enclosure it shall be ___________ and not retain groundwater in prolonged contact with the pipe.
self-leveling
self-labeling
self-filling
none that are 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
Factory installed inlet tubes on station outlets shall not be less than ____ with 0.3 minimum inside diameter.
NPS 1/8, 1/4 O.D.
NPS 1/4, 3/8 O.D.
NPS 3/8, 1/2 O.D.
NPS 1/2, 5/8 O.D.
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 begins to supply the system indicating ____________.
reserve in use
maintenance needed
low contents
secondary in use
Where initiating devices are remote from the building and the wiring is to run in compliance with NFPA 70, a ___________ set of wires shall be permitted to be run underground for each signal.
Single
Double
Triple
Quadruple
Medical air source systems shall be controlled to ensure continuous supply, and shall have a(n) __________ restart function, such that the supply of medical air will resume normally after power interruption without manual intervention.
automatic
manual
local
remote
For an oxygen central supply system using concentrators, the system shall be tested for __________.
purity of the air
purity of the oxygen
purity of the vacuum source
all of the tests listed shall be performed
Which type of medical gas has an oxygen concentration > or = 90% and < or = 96%?
Medical air USP
Oxygen USP
Oxygen enriched USP
Oxygen 93 USP
Non-mandated fundamentals and recommended guidelines for medical gas and vacuum systems, shall be located in the __________ of the NFPA 99 code or the ASSE 6000 standards.
first or second chapters
annexes or appendixes
qualifications for performance knowledge
scope or scheme
Installers of medical gas & vacuum systems shall NOT use their certifications to oversee installation _____.
by non-certified personnel
of health care personnel who meet ASSE 6010 requirements
when the installing contractor is certified
when the job foreman is certified
Which of the following is NOT a requirement for a compressed gas reserve supply system when serving as part of a cryogenic fluid central supply system?
A check valve to prevent backflow into the system
At least 3 cylinder connection points
Line pressure alarm switch/sensor located between cylinders and regulator
Relief valve/vent located between cylinders and regulator
Only one service valve is required for each branch off the riser, unless the number of zone valves on that branch exceeds ______ valves.
4
6
8
there is no maximum
Who shall be responsible for developing an emergency plan in the event of medical air loss,
at a Category 2 facility?
Head of maintenance
Facility Staff
Authority having jurisdiction
Chief engineer
Requirements for installing corrugated medical tubing, include all of the following EXCEPT:
Fabricated from copper alloy
Identified by the manufacturer as suitable for oxygen a minimum of every 3 feet
Have a minimum wall thickness of schedule 40
Supports shall be in accordance with manufacturer’s instructions
Refer to diagram 3. What is the minimum distance requirement at letter B?
10 feet
15 feet
20 feet
25 feet
In a Category 1 facility, which of the following is correct regarding the standing vacuum test
for vacuum piping?
During the test the source of the test vacuum shall be disconnected from the piping system
Leakage attributed to specific changes in ambient temperature over 0.5 percent of the standing pressure may be allowed
Standing vacuum test is performed after successful completion of an initial pressure test of positive pressure and vacuum systems
All of the answers apply
Heating, cooling ventilating a process systems serving spaces or providing healthcare functions, shall be provided in accordance with __________.
NFPA 55
ASSE 6000
NFPA 99
ASHRAE 170
For the purposes of this code, an oxygen enriched atmosphere is an atmosphere where the total concentration of oxygen exceeds ________ by volume.
23.5%
23.6%
18.5%
93.5%
The medical air dew point high alarm from each compressor site will indicate at the master alarm panels, when the line pressure dew point is greater than ________.
32º F
35º F
22º F
40º F
The scale range of vacuum indicators shall be ______ in. gauge HgV
0-15
12-15
0-30
15-30
Refer to diagram 4. The item #14 would best be described as a(n) __________ valve.
In-line shutoff
Riser
Service
Main line
Certified Installers of medical gas and vacuum systems shall use their certification to install __________.
systems the meet the requirements of NFPA 99
systems the meet the requirements of NFPA 70
systems as the installing verifier
systems as the installing inspector
A gauge reading exceeding 200 psi in a piping system is defined as which type of pressure?
Absolute
Gauge
High
Positive
Power for master and area alarms shall be from the ___________ as described in chapter 6.
secondary electrical system
essential electrical system
primary electrical system
emergency electrical system
If WAGD is produced by the medical-surgical vacuum source, the total concentration of oxygen shall be maintained below ______ percent.
23.6
25.6
21.6
19.6
An oxygen concentrator will have an alarm if the oxygen concentration lower than ___ percent is observed.
90
91
93
95
Area alarms shall monitor __________ in the area served.
High pressure in positive pressure medical gas lines
Low pressure in positive pressure medical gas lines
Low pressure in medical-surgical vacuum lines
High and Low pressure in positive pressure medical gas lines and Low pressure in medical-surgical vacuum lines
Refer to diagram 4. The item #12 would best be described as a(n) __________.
Master alarm sensor
Area alarm sensor
Local alarm sensor
Zone valve alarm sensor
Identify the following definition: A drug-induced depression of consciousness during which patients cannot be easily aroused, but respond purposefully to repeated or painful stimulation.
General Anesthesia
Deep Sedation
Moderate Sedation
Minimal Sedation
What is a permitted use of the medical-surgical vacuum system?
Liquid and debris disposal
Non-medical or Non-surgical applications
Vacuum steam condensate return
Waste anesthetic gas disposal
Copper tube hangers for medical gas and vacuum distribution piping shall be __________.
Supported from the building structure
Sized for copper tube
Plastic coated in potentially damp locations
All that are listed are required
Pipe labels shall be located at a maximum interval of how many feet?
10
15
20
25
A wireless communication device is employed in a medical gas or vacuum system. Which type of supervision is required for this device?
A visual indicator shall be located in the maintenance/ engineering department
The device shall be located at a nurse’s station
It will be supervised such that failure of communication shall initiate an alarm
The device shall be installed at the medical gas or vacuum source
Which of the following is NOT a requirement for station inlets/outlets?
Each outlet/inlet shall be legibly identified
Station outlets/inlets shall be gas specific, whether outlet/inlet is threaded or is a noninterchangeable quick coupler
Station outlets shall not be permitted to use nonstandard operating pressures
The use of common parts such as springs, O-rings, fasteners, seals, and shutoff poppets shall be permitted
Hypobaric facilities area a building or structure used to house hypobaric chambers for medical applications and procedures, at pressures __________ normal atmospheric pressure.
above
below
above and below
equal to
In central supply systems using gas cylinders, each header shall have a ________ valve to prevent backflow and to permit service to the header.
Check
Bypass
Ball
Relief
Liquid ring compressor systems shall have a reserve medical air standby header (1HR) or a _____ a backup.
Condensate trap
Manifold
Compressor
Bulk system
Dryers, filters, and regulators shall be at least __________, and each component shall be sized to serve the peak calculated demand, with the largest of each component out of service.
simplexed
duplexed
triplexed
quadruplexed
The master alarm system shall include an indication from each compressor site, when the instrument air dew point is greater than _______° F.
-22
-32
-35
-40
The instrument air dew point high alarm from each compressor site will indicate at the master alarm panels, when the line pressure dew point is greater than ________.
-39º F
-22º F
-35º F
-40º F
Which of the following does NFPA 99 consider an acceptable qualification for an individual performing maintenance on a Category 1 medical gas system?
6020 or 6030
6020 or 6010
6010 or 6040
6040 or 6030
Who shall witness the installer-performed standing vacuum test?
Installation contractor superintendent
Medical gas instructor
The authority having jurisdiction, or its designee
A witness is not required
What is the minimum required footage between medical-surgical vacuum exhaust & the air intake or other openings in the building?
12'
15'
20'
25'
Joints throughout the medical gas system, shall be brazed within _______ hours of assembly.
4
8
12
24
Hyperbaric facilities area a building or structure used to house hyperbaric chambers for medical applications and procedures, at pressures __________ normal atmospheric pressure.
above
below
above and below
equal to
Fittings for medical gas systems shall be ____________ capillary fittings complying with ASME B16.22.
wrought copper
cast copper
annealed copper
dwv copper
Which of these is an NFPA 99 requirement for labeling of pipes in a medical gas system?
Color Coding
Fixed label width
Label shall wrap completely around the pipe
Reflective label
The facility shall be permitted to use any inspection procedure(s) or testing methods, established through its own _______________.
trial and error
risk assessment
authority having jurisdiction
authorized facility representative
Pressure/vacuum indicators shall be required at which of the following locations?
Adjacent to a master alarm initiating device
At or in the area alarm panel
On the outlet/inlet side of zone valve
All of the locations listed are required
Design, installation, and operation of medical support gas systems shall consider all hazards involved with pressurized gas, and additional hazards associated with ________________.
drier gases
moister gases
flammable gases
elevated pressure gases
In-line check valves shall have which of the following?
Minimum NPS 3/4 threaded connections
Threaded purge points of 1/8 in. NPT
Required to be removed to be serviced
Threaded purge points of 1/4 in. NPT
Instrument air systems shall be permitted to interconnect with the medical air system
provided the system has ___________.
interconnection is prohibited
at least two or more compressors
been approved by the manufacturer
separate source valves for each system
Medical Gas Rail (MGR) assemblies shall be made of materials with a melting point of at least ______° F.
500
1000
1500
2000
Medical air filters shall be sized for 100% of the system peak calculated demand, and be rated for a minimum of ______ efficiency at ______ micron or greater.
95% @ .5
98% @ .1
100% @ .1
None of the listed requirements are correct
WAGD networks shall provide a WAGD inlet in all locations where _______ is intended to be administered.
Oxygen
Nitrous Oxide and other anesthetics
Nitrogen
Medical Air
What sort of treatment shall be performed to cut ends of a tube BEFORE brazing, for piping medical gas?
An argon purge must be done
Cut ends must be rolled smooth or deburred
Extensions need to be added for brazing
Treatment is NOT required, they may be brazed “as is”
Where initiating devices are remote from the building and the wiring is to run in compliance with NFPA 70, _________ single wires shall be permitted to be run underground for each signal.
1
2
3
4
Instrument air sources shall have either ________________ or ____________________.
two compressors, two standby headers
two compressors, one compressor and a standby header
two standby headers, one standby header and an emergency header
two compressors, one compressor and an emergency header
All valves except zone valve box assemblies shall be ____________.
Located in a secure area
Locked or latched in the operating position
Labeled indicating contents and location served
All of the choices are required
Natural ventilation shall consist of two non-closable louvered openings, each having an aggregate free opening of 24 square in. for each 1000 cubic ft. of the gas designed to be stored in the space. In no case shall the louvered opening be less than _____ square in.
24
48
72
96
In a non-anesthetizing area, on which side of the zone valve shall the area alarm
pressure/vacuum sensor be located?
Station outlet/inlet side
Source side
Upstream side
NFPA 99 does not specify a requirement
Medical Air reconstituted from Oxygen USP and nitrogen NF, produced using a proportioning system:
Shall produce medical air with an oxygen content of 99.5%
Shall produce medical air with an oxygen content of 91%
Shall produce medical air with an oxygen content of 19.5% to 23.5%
Shall produce medical air with an oxygen content of 23.5% to 50%
Which of the following is labeled incorrectly?
Oxygen with green background and white text
Oxygen with white background and green text
Medical air with yellow background and black text
Medical air with white background and black text
Oxygen concentrator supply units output shall have < or equal to 1mg/cubic meter of permanent particulates, sized ____ micron or larger at normal atmospheric pressure.
.01
.1
1
10
The Medical-Surgical Vacuum exhaust shall be located where prevailing winds, adjacent buildings, topography or other influences, will divert the exhaust into ________ areas.
outdoor
occupied
unoccupied
confined
Final line pressure controls shall be sized to ________ of the peak calculated demand.
50%
100%
150%
Not specified
Refer to Diagram #4, identify #13.
In-line valve
Main control valve
Service valve
Zone valve box
Manifolds for gas cylinders shall actuate a(n) __________ signal and shall activate an indicator at all __________ alarm panels, to indicate when or just before changeover from one header to the other.
Local - Master
Master - Area
Master - Local
Area - Master
In an Emergency Oxygen Supply Connection, the check valves are required to be constructed of which of the following materials?
Brass or bronze
Brass, bronze or stainless steel
NFPA 99 does Not establish any material requirements for these check valves
Materials per the EOSC manufacturer’s recommendations
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?
Air quality monitoring
Calibration of alarm sensors
Cutting and/or brazing new piping
System control sensors
With the approval of the authority having jurisdiction, in what areas shall the shutoff valves be permitted to be secured to prevent inappropriate access?
Maternity
Psychiatric or pediatric
Anesthetizing
Critical care
Inlet filtration of the medical-surgical vacuum central supply systems shall contain all EXCEPT which of the following essentials?
Filters shall be efficient to 99.97 % HEPA
Filtration shall be simplex
Filtration shall be on the patient side of the vacuum pump
Filtration shall be sized to a minimum of 100% of peak calculated demand
When designing and constructing central supply systems, the storage shall __________.
Have lockable doors or gates
Secure all cylinders
Have a minimum 1-hour fire resistance rating
All of the listed requirements apply
Joints shall be brazed within _______ hours after surfaces are cleaned for brazing.
1
4
8
27
Hard-drawn seamless copper in medical gas systems shall be type L, except when pressures exceed 185 psi, ____________ shall be used.
type K
type M
type DWV
type ACR
A schedule for maintaining medical-surgical inlets within a facility, would include all of the following EXCEPT:
Risk assessment of the facility
Maintenance personnel certified to ASSE 6020 requirements
Recommendations of the original equipment manufacturer
Recommendations as required by the authority having jurisdiction
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
To facilitate service, testing or replacement, all pressure switches and mainline gauges downstream of the source valve shall be provided with a __________.
Check valve
Shutoff valve
Demand check fitting
D.I.S.S fitting
Verification tests shall only be performed after all of the _____________ performed tests.
installer
inspector
responsible facility authority
AHJ
Pipe labels shall be located at a maximum interval of how many feet?
10
15
20
25
Immediately outside each Category 1 space and anesthetizing location, there shall be located a(n) ________ for each medical gas, vacuum and WAGD system.
Zone valve
Fire extinguisher
Relief valve
Area alarm
Which of the following fittings is NOT permitted for joining vacuum distribution pipeline systems?
Axially swaged
Non-removable push-fit
Welded
Memory metal
