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Worksheets2021 Medgas Test FE
Total questions: 79
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
Oxygen enriched atmosphere is the concentration of oxygen that exceeds _____ percent by volume.
a)
19.5
b)
22.5
c)
99.5
d)
23.5
2.
All pressure relief valves shall be made of brass, bronze or--_________.
a)
Carbon Steel
b)
Stainless Steel
c)
Copper
d)
Cast Iron
3.
Cylinders in use and in storage shall be prevented from--reaching temperatures in excess of _________.
a)
160 F
b)
190 F
c)
125 F
d)
100 F
4.
Medical air filters shall be located immediately upstream of the ________.
a)
Receiver
b)
After coolers
c)
Final line regulator
d)
Pressure indicator
5.
The compressor air intakes shall be located outdoors at a minimum distance of ______ above the ground.
a)
10 Feet
b)
20 Feet
c)
40 Feet
d)
30 Feet
6.
The medical air intake shall be located a minimum of ___ ft from all vehicular exhausts and noxious fumes.
a)
20
b)
25
c)
15
d)
10
7.
What source shall not be used to power the venturi of a--WAGD system?
a)
Instrument air
b)
Medical air
c)
Inert gas
d)
All of the above
8.
What valves shall be readily operable from a standing--position in the corridor on the same floor they serve?
a)
Main
b)
Service
c)
Riser
d)
Zone
9.
All master, area and local alarm systems shall include separate _______ indicators for each condition monitored.
a)
Audible
b)
Visual
c)
On, off
d)
High, low
10.
Brazed joints shall be made using a brazing alloy that exhibits a melting temperature in excess of ________ degrees F to retain the integrity of the piping system in the event of fire.
a)
1000
b)
1200
c)
800
d)
2400
11.
CMT systems shall be installed by _____ qualified installers using the CMT manufacturer’s instructions.
a)
Oversee by ASSE 6010
b)
Licensed plumber
c)
ASSE 6010
d)
Anyone
12.
Flex hose and connectors, both metallic and non-metallic, shall be no longer than necessary and shall have a minimum burst pressure of ____________.
a)
800 psi
b)
500 psi
c)
300 psi
d)
1000 psi
13.
Performance qualification of brazers shall remain in effect indefinitely unless the brazer does not braze with the qualified procedure for a period exceeding _________ months.
a)
18
b)
6
c)
24
d)
12
14.
Pipe labels shall be located at intervals of not more than______ ft.
a)
15
b)
20
c)
10
d)
25
15.
After the piping system, the blow down test shall be done. Then the Installer must perform which of the following test?
a)
Initial pressure test
b)
Initial cross connection
c)
Initial piping purge test
d)
All of the above
16.
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)
nursing staff
c)
engineer
d)
authority having jurisdiction
17.
For purposes of this code, an oxygen enriched atmosphere is an atmosphere where to total concentration of oxygen exceeds _______ by volume.
a)
0.235
b)
0.236
c)
1.295
d)
0.93
18.
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 _______.
a)
-32ºF
b)
-44ºF
c)
-22ºF
d)
-39ºF
19.
Manifolds for gas cylinders shall consist of ______ equal headers; each with one average day’s supply, but not fewer than _______ connections.
a)
two – two
b)
one – one
c)
three – three
d)
four – four
20.
Installers of Category 1 medical gas piping systems must be qualified to ASSE 6010. What is the certification requirement for installers of a Category 3 system?
a)
6010
b)
6020
c)
6030
d)
Category 3 does not require certification
21.
Which source shall NOT be used to power the venturri of a WAGD system?
a)
instrument air
b)
water
c)
inert gas
d)
medical air
22.
What is the standard gauge pressure (psi) for nitrogen gas service?
a)
15 – 30
b)
50 – 55
c)
160 – 185
d)
It varies with system type.
23.
In a non-anesthetizing area, on which side of a zone valve shall the area alarm pressure/vacuum sensor be located?
a)
upstream side
b)
station outlet/inlet
c)
source
d)
NFPA 99 does not specify a requirement
24.
Which of the following conditions must be met where medical gas and vacuum systems are installed by non-certified personnel?
a)
An installer certified to ASSE 6010 must be present to oversee the installation
b)
An ASSE 6020 inspector is present on the job sit to inspect the installation
c)
The installer must be an employee of an authorized Medical Gas contractor
d)
Installation by anyone other than 6010 certified personnel is NOT permitted
25.
Which of these is an NFPA 99 requirement for the labeling of pipes in a medical gas system?
a)
Reflective label
b)
Color coding
c)
Fixed label width
d)
Label shall wrap completely around the pipe
26.
A tool is allowed to be used by the installer to mechanically limit the makeup depth of the fitting to be brazed. Under what conditions is this method permitted for the installation of medical gas piping?
a)
Only on final line connections
b)
Only where BCuP 5 brazing rod is used
c)
Where limited depth is not less than the minimum cup depth per ANSI/ASME
d)
Only on vacuum systems
27.
The medical air intake shall be located a minimum of _____ from all doors, windows or other openings in the building.
a)
10 ft
b)
15 ft
c)
20 ft
d)
25 ft
28.
Vacuum piping for ____________ shall be connected separately from the medical surgical system directly to the receiver tank through its own isolation valve and fluid trap located at the receiver.
a)
The standing vacuum test
b)
A teaching laboratory
c)
Each WAGD system
d)
A location requiring seismic restraint
29.
Which of these operations would NOT breach the vacuum system?
a)
Addition of a system component
b)
Removal of system component
c)
Replacement of system component with an identical one
d)
Testing a system component with a leak detecting solution
30.
Which is a permitted use of the medical-surgical vacuum system?
a)
Vacuum steam condensate return
b)
Non-medical or non-surgical applications
c)
Liquid or debris disposal
d)
Waste anesthetic gas disposal
31.
Which of the following is an instrument air quality requirement?
a)
It shall be compliant with medical air USP
b)
It shall be filtered to .7 micron
c)
It shall be dry to a dew point of -30oF
d)
It shall be compliant with instrument Air section in ANSI/ISA S-7.0.01
32.
Station outlets/inlets shall be identified as to the _________ for the specific gas or vacuum provided.
a)
Name or Chemical symbol
b)
Chemical symbol
c)
Name
d)
Piping Type
33.
Manifolds for gas cylinders shall actuate a(an) _______ signal and shall activate an indicator at all _______ alarm panels to indicate when or just before changeover from one header to the other.
a)
Master; Local
b)
Area; Master
c)
Local; Master
d)
Master; Area
34.
With the approval of the authority having jurisdiction, in what areas shall the shutoff valves be permitted to be secured to prevent inappropriate access?
a)
critical care
b)
maternity
c)
psychiatric or pediatric
d)
anesthetizing
35.
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?
a)
3
b)
2
c)
1
d)
4
36.
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?
a)
Freon
b)
Acetone
c)
Ammonia
d)
Chlorine
37.
Pipe labels shall be located at a maximum interval of how many feet?
a)
10 ft
b)
15 ft
c)
20 ft
d)
25 ft
38.
NFPA 99 requires tubing to be cut square using a sharp tubing cutter that shall be free from grease, oil or other lubricants not suitable for oxygen service. What sort of treatment is permitted of the tube ends before brazing?
a)
May be reamed
b)
May be deburred or rolled smooth
c)
May be re-cleaned
d)
none of the above
39.
After completion of all installer-performed tests which of the following methods shall be used to determine that no cross-connection exists?
a)
Individual pressurization
b)
Pressure differential
c)
Both A and B
d)
Either A or B
40.
In an Emergency Oxygen Supply Connection the check valves are required to be constructed of which of the following materials?
a)
Brass or bronze
b)
Materials per the EOSC manufacturer’s recommendations
c)
Brass, bronze or stainless steel
d)
NFPA 99 does NOT establish any material requirements for these check valves
41.
Fittings, valves, and other components for oxygen use in a Category 1 distribution system shall be ___________ until prepared for installation.
a)
Kept at a minimum inventory level
b)
Delivered sealed, labeled, and kept sealed
c)
Plugged or capped by the manufacturer
d)
Stored in a locked room or secure facility
42.
What does it mean when equipment, material, or services are shown as “listed”?
a)
They are identified and published by an organization that is acceptable to the authority having jurisdiction.
b)
They have been found tolerable for the purpose described in the manufacturer’s specifications.
c)
They have been tested and approved by the construction supervisor
d)
They have been tested by a medical gas verifier
43.
A medical gas master or area alarm panel should be set to actuate a(an) __________ indicator when the communication with an alarm-initiating device is disconnected.
a)
Audible
b)
Audible and visual
c)
High and low
d)
Visual
44.
Which of the following fittings is NOT permitted for joining vacuum distribution pipeline systems?
a)
Non-removable push-fit
b)
Memory metal
c)
Welded
d)
Axially swaged
45.
Copper tube hangers for medical gas and vacuum distribution piping shall be ________.
a)
supported from the building structure
b)
sized for copper tube
c)
plastic coated in potentially damp locations
d)
all of the above
46.
The installer shows documentation that the initial pressure test for the vacuum system was conducted at 50 psi. At what guage pressure should the installer have performed this test?
a)
30" Hg
b)
30 psi
c)
60 psi
d)
150 psi
47.
Which of these is a requirement for area alarm panels?
a)
Located at a nurses station and in the engineering department
b)
Monitored 24/7 continuously
c)
Provide visual and audible indication
d)
None of the above
48.
When testing outlets/inlets, you must use which of these components?
a)
Interchangeable outlet/inlet adapters
b)
Miscellaneous fittings as required
c)
O-rings/seals
d)
Gas-specific adapters as described by the manufacturer
49.
Which of the following shall require the installer to provide documentation prior to any installation of a category 2 medical gas piping system?
a)
brazed piping
b)
dental equipment hook up
c)
future piping connections
d)
installer braze log
50.
The removal of components within a source system for repair and re-installation of for replacemnent shall be treated as new work for the purpose of testing when ever such work involves which of the following?
a)
air quality monitoring
b)
calabration of alarm sensors
c)
cutting and/or brazing new pipe
d)
system control sensors
51.
A wireless communication device is employed in a medical gas or vacuum warning system. Which type of supervision is required for this device?
a)
The device shall be installed at the medical gas or vacuum source
b)
It will be supervised such that failure of communication shall initiate an alarm.
c)
A visual indicator shall be located in the maintenance/engineering department.
d)
The device shall be located at a nurse’s station
52.
Prior to installation of a manufactured assembly, documentation shall be provided for all EXCEPT which of the following tests?
a)
cross-connection
b)
intial pressure
c)
piping purge
d)
operational pressure
53.
Policies shall be established and maintained that permit _____ to supersede the requirements of the NFPA 99 in order to satisfy the emergency needs of the patient
a)
AHJ
b)
the attending medical professional
c)
governing body
d)
operations manager
54.
Riser valves are those valves located where?
a)
adjacent to the main riser downstream of any zone valve
b)
anywhere in the lateral branches of the piping system
c)
in the main line adjacent
d)
in the riser adjacent to the main line
55.
Pressure relief valves shall meet which of the following requirements?
a)
constructed of brass or bronze
b)
shall have a relief pressure not more than 5% higher than the max allowable working pressure of th system served
c)
they may discharge in uncoccupied rooms
d)
they shall be designed for the specific gas served
56.
In Compliance with NFPA 70, new wiring is installed underground from the source to the junction box entering the building. What is the min. # of sets of wires to connect the initiating device with the junction box?
a)
1
b)
2
c)
3
d)
4
57.
The level of sedation allowed for use ina Category 2 dental health facility is limited to which of the following?
a)
General Anesthesia
b)
Max. Sedation only
c)
Min. or No sedation
d)
Moderate or Min. Sedation
58.
Non-mandated fundamentals and recommended guidelines for medical gas and vacuum systems shall be located in the ____ of the NFPA 99 code or ASSE 6000 standards.
a)
1st or 2nd chapters
b)
annexes or appendices
c)
qualifications or performance knowledge
d)
scope or scheme
59.
A guage reading exceeding 200 psi in a piping system is defined as what type of pressure?
a)
absolute
b)
guage
c)
High
d)
positive
60.
Pipe labels shall be located at a maximum interval of how many feet?
a)
10 ft
b)
15 ft
c)
20 ft
d)
25 ft
61.
Performance qualification of brazers shall remain in effect indefinitely unless the brazer does NOT braze with the qualified procedure for longer than what period of time?
a)
6 months
b)
12 months
c)
2 years
d)
Brazing certs do not expire
62.
Where liquid ring compressors with air-water separators are used, when the liquid level is above the design level, a sensor activates a(n) _______ alarm indicator.
a)
Local
b)
Area
c)
Master
d)
All of the above
63.
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?
a)
Risers
b)
Vent Lines
c)
Branch (lateral) lines
d)
Main lines
64.
A _____ system is an assembly of equipment such as storage containers pressure regulators pressure relief devices vaporizers, manifolds, and interconnecting piping that has a a storage capacity of more than 566 m3 (20,000 ft3) at normal temperature including unconnected reserves on hand at the site.
a)
bulk oxygen
b)
high pressure manifold
c)
micro bulk
d)
vacuum
65.
a document in which the main text contains only mandatory provisions. Non-mandatory provisions are located in the appendix or appendicies or the annex. This is the NFPA 99 definition of which of the following?
a)
guide
b)
procedure
c)
reference
d)
standard
66.
Which type of medical gas has an oxygen concentration of > or = to 90% and or = 96%?
a)
medical air USP
b)
OXYGEN usp
c)
Oxyegen enriched USP
d)
Oxygen 93 USP
67.
In those portions of the system intended to handle oxygen at pressures greater than 350 psi, the interconnecting hose shall not contain __________ materials.
a)
brass
b)
stainless steel
c)
polymeric
d)
copper
68.
The medical air compressor intake shall be located a minimum of ____ ft from plumbing vents, _____ ft above ground level, and the end shall be _____.
a)
10, 25, plugged or capped
b)
15, 20, CMT
c)
25, 10, screened
d)
25, 20, turned down andd screened
69.
When an EOSC becomes the temporary auxillary supply source, a facility will monitor the system by use of which of the following?
a)
having personnel standby during that time
b)
installing additional local alarms
c)
providing four alarm connection points installed prior to both master alarms panels
d)
providing visible indicators and a local signal at the source
70.
NFPA 99 specifies that the medical gas piping system shall be protected against all EXCEPT which of the following?
a)
Freezing
b)
Corrosion
c)
liquids
d)
Physical damage
71.
Under which of these condtions shall insttrument air reserve header cylinders be permitted to be stored with the instrument air compressor?
a)
The mechanical equipment room does Not contain a boiler
b)
The medical air compressors are in the same room
c)
The only motor driven machinery in the room is for the insrument air equip.
d)
The room is secured with lockable doors
72.
When brazing, joints shall be continuously purged with oil- free, dry nitrogen NF to prevent the formation of
a)
Crystalization
b)
Volatilized liquid
c)
Copper Oxide
d)
Polymeric material
73.
A cryogenic fluid central supply system contains parallel-piped duplex line regulators. Which of the following is a requirement for controls for line pressure?
a)
check valves on the source side of each control
b)
contains no plymeric material
c)
A balanced design
d)
control for line be sized 110% of the peak calculated demand
74.
In an Emergency Oxygen Supply Connection the check valves are required to be constructed of which of the following materials?
a)
Brass or bronze
b)
Materials per the EOSC manufacturer’s recommendations
c)
Brass, bronze or stainless steel
d)
NFPA 99 does NOT establish any material requirements for these check valves
75.
Stainless tube may be joined by any methods EXCEPT which of the following?
a)
SMAW
b)
Gas tungsten arc welding (GTAW)
c)
Metal inert gas (MIG)
d)
Tungsten inert gas(TIG)
76.
Which of the following systems shall not be permitted to be located in an outdoor enclosure?
a)
Manifolds for cryogenic Liquid Cyclinders
b)
Bulk Cyrogenic Liquid Systems
c)
Medical Air Sources
d)
Manifolds for gas cylinders with or without reserve
77.
All master, area and local alarm systems shall include separate _______ indicators for each condition monitored.
a)
High, low
b)
Visual
c)
On, off
d)
Audible
78.
Factory installed copper inlets on station outlets and station inlets is extending no more than 8” inch long. What is the minimum inside diameter on station outlets_____________?
a)
3/8 nps (.3)inch
b)
1/4 nps (.3)inch
c)
3/8 nps (.4)inch
d)
1/4 nps (.4)inch
79.
The standing pressure test for positive pressure medical gas piping shall be conducted with the source valve closed and the piping system subjected to a pressure of _______.
a)
20% above operating pressure for 24 hours
b)
150 psi for 8 hours
c)
20% above operating pressure for 8 hours
d)
50 psi for 24 hours
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