WS 5 Flashcards
Each station outlet/inlet for medical gas or vacuum shall be ____.
Gas-specific.
Each station outlet shall consist of a(n) ____ valve and a secondary valve (or assembly).
Primary.
Each station inlet shall consist of a primary valve (or assembly) and hall be permitted to include a(n) _____ valve (or assembly)
Secondary.
Station outlets in systems having nonstandard operating pressures shall be ____ where a single gas is piped at more than one operating pressure.
Pressure-specific.
Station outlets that operate at a pressure in excess of ____ shall be either D.I.S.S. or be designed to relieve pressure prior to removal of the adaptor.
80 psi.
Station inlets for WAGD service shall not be ____ with any other systems.
Interchangeable.
The standing pressure test for manufactured assemblies shall be permitted to use any testing method that will ensure a pressure decay of less than ____.
1% in 24 hours.
Manufactured assemblies employing flexible hose shall use hose and flexible connectors with a minimum burst gauge pressure of ____.
1,000 psi.
Manufactured assemblies shall have a flame spread index of no greater than ____ when tested in accordance with ASTM E 84.
200.
Station outlet/inlets of manufactured assemblies that employ flexible hose or flexible connectors to the piping system, that are not fully and immediately accessible, shall use ___ connectors.
D.I.S.S.
MGR assemblies shall be made of materials with a melting point of at least ____.
1,000 degrees F.
The scale range or positive pressure analog indicators shall be such that the normal operating pressure is within the ____ of the total range.
Middle third.
The accuracy of the digital indicators shall be +-_____ percent of the operating pressure at which they are used.
5.
The scale range of vacuum indicators shall be ____ gauge HgV.
0-30”
The rated accuracy of pressure indicators used for testing shall be ____ percent (full scale) or better at the point of reading.
1%
Pressure/vacuum indicators shall be readable from a ____ position.
Standing.
Pressure/vacuum indicators shall be provided adjacent to the ____ device for source main line pressure and vacuum alarms in the master alarm system.
Alarm-powering,
Alarm initiating, and
Alarm resetting.
To facilitate service, testing or replacement, all pressure switches and mainline gauges downstream of the source valve shall be provided with a ____.
Demand check fitting.
Since dew point and carbon monoxide monitors are located upstream of the source valve, demand check fittings are not required. True or false?
False.
The manufacturer shall provide documentation certifying the performance, and successful completion of all pressure testing. True or false?
True.
Openings in the MGR not occupied by station outlets/inlets, shall be capped or plugged so that a special tool is required for removal. True or false?
True.
Gas specific demand check fittings shall not be required on zone valve pressure indicators. True or false?
True.
MGR assemblies shall connect to the ____ through _____ that are brazed to the pipeline.
Pipeline; fittings.
Station outlets or inlets shall be placed at the ends of the MGR assemblies. True or false?
False.
