Answers Verified 100% Correct
The entrance to indoor locations containing positive pressure gases other than
oxygen and medical air shall be labeled including: ______________
A Positive Pressure Gases
B No Smoking or Open Flame
C Room May Have Insufficient Oxygen - Open Door and Allow Room to
Ventilate Before Entering
D All of the above - ANSWER -All of the above
If heat is necessary to keep an indoor manifold enclosure above 20oF and the
manufacturer's recommended minimum ambient temperature it may be provided
by:
A Any in-room electric heating element
B In-room heating element with a maximum temperature of 266oF
C Fuel fired equipment in the room
D Heat blanket with maximum temperature of 300oF - ANSWER -In-room
heating element with a maximum temperature of 266oF
Two entries/exits are required for ___________________ gas supplies.
A Outdoor Cryogenic Gas Supplies only
B Outdoor Cylinder Gas Supplies in an enclosure >200ft2 only
C Indoor Gas Supplies only
D Both A & B - ANSWER -Both A & B
An existing outdoor Nitrous Oxide Manifold may continued to be used since it
seldom falls below 20oF.
A TRUE
B FALSE - ANSWER -FALSE
Indoor manifold rooms must be separated by ______ fire rated walls and floors
with a ______ opening.
A 1 hour, 1 hour
B 2 hour, 1 hour
C 1 hour, 3/4 hour
D No wall fire rating is required - ANSWER -1 hour, 3/4 hour
, Only full or in-use cylinders are required to be prevented from falling by being
secured with racks, chains, or other fastenings. Empty cylinders are not required to
be secured.
A TRUE
B FALSE - ANSWER -FALSE
Oxygen supplies greater than 350 psig may not use _______________ materials.
A Copper
B Stainless Steel
C Polymeric
D Brass - ANSWER -Polymeric
Gas supply source relief valve vent lines must be labeled ____________.
A with the proper pressure in psig
B with medical gas pipe labels
C by painting the correct CGA color
D in a manner to distinguish them from medical gas pipeline - ANSWER -in a
manner to distinguish them from medical gas pipeline
Manifold rooms utilizing natural ventilation shall
A have 2 non-closeable louvered openings
B be vented directly to the outside without ductwork
C provide cross ventilation
D all of the above - ANSWER -all of the above
Indoor manifold enclosures utilizing mechanical ventilation shall maintain
positive pressure
A TRUE
B FALSE - ANSWER -FALSE
A gas cylinder header consists of all of the following components with the
exception of:
A Filter
B Pressure Indicator
C Local alarm
D Regulator - ANSWER -Local alarm
A header for cryogenic liquid containers must have a ________________.
A pressure relief valve
B purge ports
, C quick disconnect
D none of the above - ANSWER -pressure relief valve
A __________ must be installed at the connection between the header and each
cylinder lead (pigtail) to prevent a single pigtail leak from causing pressure loss of
all cylinders connected to that same header.
A Warning light
B Local Alarm
C Gauge
D Check Valve - ANSWER -Check Valve
Full and empty cylinder storage may not be in the same enclosure as a central
supply system (medical or support gas manifold).
A TRUE
B FALSE - ANSWER -FALSE
Permitted areas for piped medical gases outlets include all of the following with
exception of:
A Direct Respiration by a Patient
B Calibration of patient respiration devices
C Endoscopy or Sterile Processing Instrument Blow Down
D Simulation centers for education of health care professionals - ANSWER -
Endoscopy or Sterile Processing Instrument Blow Down
An auxiliary valve source connection must consist of all of the following except:
A Installed on the source side (upstream) of the source valve
B Must the same size as the main line
C Include a removable plug or cap
D Must be normally closed and secured - ANSWER -Installed on the source side
(upstream) of the source valve
Facilities may supply ______________ through a Concentrator Supply Source.
A USP 93 Oxygen
B 99% Oxygen Only
C Compressed Medical Air
D Nitrous Oxide - ANSWER -USP 93 Oxygen
The primary and secondary headers for a gas cylinder manifold must each have an
equal number of cylinders.
A TRUE