Run-outs from horizontal mains or branches shall be taken off ___ the centerline of the pipeline
Above
Below
At
Any of the above
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 Free Dry Argon MD
Oil Free Dry Helium NF
Oil Free Dry Nitrogen NF
Any Inert Gas
Which of the following filler metals shall be used to braze copper to copper joints in medical gas/vacuum distribution piping?
BAg Series
BAu Series
BCup Series
BNi Series
Tubing for positive pressure medical gas systems delivered from the manufacturer shall be _____
Plugged or capped
Harddrawn seamless
Identified as "oxy" or "med"
All of the above
In positive pressure systems area alarm sensors for vital life support and critical care areas shall be located on which side of the zone valve box assemblies.
Patient side
Outlet/Inlets side
Downstream side
The master alarm systems shall activate when the pressure in the main supply lines increase or decrease by _____ percent.
10
20%
40
50
All medical gas alarm system shall have a _______ audible indication for each conditioned monitor
Adjustable
Cancelable
Optionable
The master alarm systems shall consists of two or more alarm panels, a centralized computer system shall not be permitted to be used as a substitute for one of the required master alarm panels.
Since dew point and carbon monoxide monitors are located upstream of the source valve, demand check fittings are not required.
Where shall pressure indicators be provided for medical gas systems.
On the main supply
At the area alarm
Outlet/Inlets side of the zone valve
The scale range of positive pressure analog indicators shall have the normal reading fall within the ___ percentage of the gauge scale
25
75
100
Station inlets for WAGD service shall be legibly marked to identify them and shall be of a type appropriate for the flow and vacuum level required by the facility gas anesthetic machine.
The factory installed tubing on station outlets/inlets shall extend no further than ____ from the body of the terminal
6
8
12
Each station outlet/inlet for medical gas or vacuum shall be ____
Interchangeable
Gas-specific
Threaded
Quick-coupler
What is name given to the shutoff valve installed on all lateral branch piping form a main or riser?
Riser
Service
Zone
A shutoff valve shall be placed at the immediate connection of each source system to the distribution piping system. What is the name given to the valve?
Main
Supply
Source
Isolation
All valves except zone valve box assemblies shall be
In a secured areas
locked or latched
Labeled appropriately
Where instrument air system are provided with standby headers
What is the minimum number of compressor required in an instrument air system that employs a standby headers?
0
1
2
3
Instrument air system shall be permitted to interconnect with medical air systems that have at least two or more compressors.
The quality of the instruments air shall be ___.
Filtered to .01 micron
Free of liquids
Free of hydrocarbons vapors
A level 1 dedicated WAGD source shall consist of ____or more producers, each shall be sufficient to serve the peak calculated demand.
one
Two
Three
Vacuum receivers shall be capable of withstanding a gauge vacuum of ____ inches of mercury.
29
29.9
30
Level 1 medical-surgical vacuum sources shall consist of an automatic means to prevent ____ through any of-cycle vacuum pump.
Pressure loss
Back pressure
Backflow
Carbon monoxide shall activate the required alarms when the CO level exceeds ____.
5 ppm
10 ppm
15 ppm
20 ppm
Where charcoal filters are required, a color-metric hydrocarbon indicator shall be provided.
Where liquid ring compressors are used, air receivers shall be equipped with a high water level sensor that activates a ____alarm indicator.
Master
Area
Local
The compressor air intakes shall be located outdoors above roof level at a minimum distance of ____ above ground.
40 ft
30 ft
20 ft
10 ft
Where medical air piping systems at different operating air pressures are required, the piping shall separate after the _____.
Filters
Final regulators
Riser valves
Source Valve
If dryers, filters and regulators are sized to serve the peak calculated demand, they shall not be duplexed.
Level 1 Medical air compressors shall be sized to served the peak calculated demand and in no case shall there be fewer than ____ compressors.
One
Four
Receivers for medical air shall be equipped with ____.
Relief valve
Automatic and manual drains
Sight glass
______ connectors shall connect the air compressors with their intake and outlet piping.
Anti-vibration
Dielectric
Insulated
Flexible
Compressors for medical air shall be designed to prevent introduction of contaminants or liquid into the piping systems.
Medical air sources shall be used only for ____and calibration of medical respiratory devices.
Human respiration
Air-operating device
Instrument air
Where the bulk cryogenic liquid oxygen supply systems is outside of and remote from the building served a ___connection shall be installed.
Maintenance cleanout
Refilling
Emergency oxygen supply
An in building emergency reserve system can be substituted for the EOSC.
Bulk cryogenic liquid system site shall have allowance for at least ___ of clearance around storage container, vaporizer and the pressure regulating manifold.
2 ft
3 ft
4 ft
5 ft
Installers of bulk cryogenic liquid systems shall be qualified to meet CGA M-1 Standard, Guide for Medical Gas Installations at Consumer Sites.
manifolds for cryogenic liquid cylinder shall indicate when or at a predetermined set point before the reserve contents fall to one day's average supply, indicating ____.
Reserve is in use
Primary empty
Secondary empty
Reserve low
Manifolds for cryogenic liquid cylinders shall consist of ____ equal headers, each having sufficient number of liquid containers for an average day's supply.
4
Manifolds for gas cylinders without reserve shall consist of ____ equal headers, each with an average days supply, but not fewer than ____ connections.
Four-four
Three-three
Two-two
One-one
Relief valves shall be vented to the ____, except compressed air systems having less than 3000 cu ft at STP
Floor
Sewer Drain
Back into the systems
Outside
All pressure relief valve shall be made of brass, bronze or ___.
Stainless
Carbon steel
Cast Iron
Copper
Louvered openings for natural ventilation shall have a minimum free area of ___.
60 sq in
62 sq in
70 sq in
72 sq in
Locations for central supply systems and the storage of medical gases shall be secured with lockable doors or gates.
Cylinders in use and in storage shall be prevented from reaching temperatures in excess of ___.
100 F
130 F
160 F
190 F
Which of the following systems shall not be permitted to be located in the same indoor enclosure?
Bulk cryogenic liquid system
Manifolds for cryogenic liquid cylinders
Manifolds for gas cylinders with or without reserve
instrument air standby leader
liquid containers shall have additional product identification visible from all directions with a minimum of ____inch high letters such as 360 degree wrap around tape for medical liquid containers
1 in
2 in
3 in
4 in
Which of the following hazards shall be considered in the design, installation, testing and maintenance of medical gas and vacuum piping systems?
Contaminations
Fire and Smoke
Fire and explosions
Water and Gas
