MEDICAL GAS QUESTIONS 100%
CORRECT ANSWERS EXAM!!
receivers for medical air shall be equipped with ____ - ANSWERrelieve valves,
automatic & manual drains, sight glass
medical air filters shall be located immediately upstream of the___ - ANSWERfinal
line regulator
medical air compressors that are designed to separate the oil-containing section
from the compression chamber shall be provided with a coalescing filter with a(n) -
ANSWERelement change indicator
medical air receivers shall be provided with a ____to permit servicing -
ANSWERthree-valve bypass
dryers, filter & regulators shall be at least duplexed. Under normal operation, airflow
shall be divided equally through each device - ANSWERFalse
medical air purity for compressor systems shall be analyzed prior to the source valve
being opened. Samples taken at the system sample port for carbon monoxide shall
not exceed _______ - ANSWER10 ppm
Level 2 medical air compressors shall be permitted to be simplex. If duplex
compressor systems are installed in a level 2 facility then the dryer, aftercoolers,
filters & regulators shall be duplexed - ANSWERfalse
A level 3 moisture indicator ........ when the relative humidity of the compressed air
exceeds ______ efficiency. - ANSWER40%
liquids drained from a level 3 vacuum source shall be directly connected to a sanitary
drainage system. - ANSWERTrue
Where the level 3 central supply is remote from the medical gas system use points,
the main supply line shall be provided with a shutoff valve so located in the single
treatment facility as to be accessible from the use-point location labeled a ________
- ANSWEREmergency shutoff valve
medical air shall be sampled at a _____ NPS valved sample port downstream of the
final line pressure regulator - ANSWER1/4''
Area alarm panels for medical gas systems shall indicate when line pressure in the
area being monitored increases or decreases by - ANSWER20%
, Area alarm sensors for vital life support & critical care areas shall be located on
which side of the zone valve box assemblies? - ANSWERPatient room side, outlet
inlet side, downstream side
A signal from each local alarm shall be connected to the master alarm panels to
indicate that a problem is present with the source equipment - ANSWERtrue
A high carbon monoxide level in the medical air system shall indicate at each local
alarm site. At what level shall the alarm activate - ANSWER10 ppm or higher
fittings for positive pressure medical gas systems must be cleaned for oxygen
service by either the manufacturers supplier or other agency prior to installation -
ANSWERtrue
the pressure in the main line of each medical gas system, the operation & condition
of the source of supply & the reserve source of supply & the reserve source (if any),
shall be monitored at the _____ alarm. - ANSWERmaster
In a bulk cryogenic liquid system when the main supply reaches an average day's
supply, which alarm system shall be activated? - ANSWERMaster
In a cylinder supplied medical gas system with reserve, which alarm system(s) will
activate when, or just before, the changeover to reserve supply occurs? -
ANSWERMaster
The master alarm system shall activate when the pressure in the main supply lines
increases or decreases by______ - ANSWER20%
The master alarm system shall activate when the main line of the vacuum system
drops to or below _______ - ANSWER12 in. Hg
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 _______ -
ANSWER+35*F
threaded joints in medical gas & vacuum distribution piping shall be limited to
______ - ANSWERGages & sensors
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 fire. -
ANSWER1000*F
Which of the following filler metal ..... used to braze copper-to-copper joints in
medical gas/vacuum distribution piping? - ANSWERBCuP series
NFPA 99 requires tubing to be cut square using a sharp tubing cutter that shall be
free from grease, on or other lubricants, & not suitable for oxygen service . What is
required of the tube ends after cutting? - ANSWERshall be deburred
CORRECT ANSWERS EXAM!!
receivers for medical air shall be equipped with ____ - ANSWERrelieve valves,
automatic & manual drains, sight glass
medical air filters shall be located immediately upstream of the___ - ANSWERfinal
line regulator
medical air compressors that are designed to separate the oil-containing section
from the compression chamber shall be provided with a coalescing filter with a(n) -
ANSWERelement change indicator
medical air receivers shall be provided with a ____to permit servicing -
ANSWERthree-valve bypass
dryers, filter & regulators shall be at least duplexed. Under normal operation, airflow
shall be divided equally through each device - ANSWERFalse
medical air purity for compressor systems shall be analyzed prior to the source valve
being opened. Samples taken at the system sample port for carbon monoxide shall
not exceed _______ - ANSWER10 ppm
Level 2 medical air compressors shall be permitted to be simplex. If duplex
compressor systems are installed in a level 2 facility then the dryer, aftercoolers,
filters & regulators shall be duplexed - ANSWERfalse
A level 3 moisture indicator ........ when the relative humidity of the compressed air
exceeds ______ efficiency. - ANSWER40%
liquids drained from a level 3 vacuum source shall be directly connected to a sanitary
drainage system. - ANSWERTrue
Where the level 3 central supply is remote from the medical gas system use points,
the main supply line shall be provided with a shutoff valve so located in the single
treatment facility as to be accessible from the use-point location labeled a ________
- ANSWEREmergency shutoff valve
medical air shall be sampled at a _____ NPS valved sample port downstream of the
final line pressure regulator - ANSWER1/4''
Area alarm panels for medical gas systems shall indicate when line pressure in the
area being monitored increases or decreases by - ANSWER20%
, Area alarm sensors for vital life support & critical care areas shall be located on
which side of the zone valve box assemblies? - ANSWERPatient room side, outlet
inlet side, downstream side
A signal from each local alarm shall be connected to the master alarm panels to
indicate that a problem is present with the source equipment - ANSWERtrue
A high carbon monoxide level in the medical air system shall indicate at each local
alarm site. At what level shall the alarm activate - ANSWER10 ppm or higher
fittings for positive pressure medical gas systems must be cleaned for oxygen
service by either the manufacturers supplier or other agency prior to installation -
ANSWERtrue
the pressure in the main line of each medical gas system, the operation & condition
of the source of supply & the reserve source of supply & the reserve source (if any),
shall be monitored at the _____ alarm. - ANSWERmaster
In a bulk cryogenic liquid system when the main supply reaches an average day's
supply, which alarm system shall be activated? - ANSWERMaster
In a cylinder supplied medical gas system with reserve, which alarm system(s) will
activate when, or just before, the changeover to reserve supply occurs? -
ANSWERMaster
The master alarm system shall activate when the pressure in the main supply lines
increases or decreases by______ - ANSWER20%
The master alarm system shall activate when the main line of the vacuum system
drops to or below _______ - ANSWER12 in. Hg
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 _______ -
ANSWER+35*F
threaded joints in medical gas & vacuum distribution piping shall be limited to
______ - ANSWERGages & sensors
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 fire. -
ANSWER1000*F
Which of the following filler metal ..... used to braze copper-to-copper joints in
medical gas/vacuum distribution piping? - ANSWERBCuP series
NFPA 99 requires tubing to be cut square using a sharp tubing cutter that shall be
free from grease, on or other lubricants, & not suitable for oxygen service . What is
required of the tube ends after cutting? - ANSWERshall be deburred
