Med-Gas Exam
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf
1. Which of the following filler metal ..... used to braze copper-to-copper joints
in medical gas/vacuum distribution piping? - Correct Answer: BCuP
series
2. 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? - Correct
Answer: shall be deburred
3. joints shall be brazed within ______ hour after the surfaces are cleaned for
brazing - Correct Answer: 1^8
4. 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? - Correct Answer: Nitrogen NF
,5. 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 _______ - Correct Answer: 10 ppm
6. 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 - Correct Answer:
false
7. A level 3 moisture indicator ........ when the relative humidity of the
compressed air exceeds ______ efficiency. - Correct Answer: 40%
8. liquids drained from a level 3 vacuum source shall be directly connected to
a sanitary drainage system. - Correct Answer: True
9. 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 ________ - Correct Answer: Emergency shutoff
valve
10.Piping for level 3 positive-pressure medical gases shall be cleaned for
oxygen service, delivered plugged or capped & shall be hard-drawn,
seamless copper ASTM - Correct Answer: B819
,11.Multiple vacuum pumps shall be permitted to be joined together to one
common exhaust provided the common exhaust is sized to ______ -
Correct Answer: minimize back pressure
12.level 1 med cal-surgical vacuum ..... shall?*.. activate which alarm when the
backup or lag pump is running? - Correct Answer: local
13.what source shall not be used to power the venturi of WAGD system? -
Correct Answer: medical air
14.the quality of instrument air shall be dry to a dew point of ______ -
Correct Answer: -40*F
15.instrument air systems shall be interconnected with medical air systems
that have two or more compressors - Correct Answer: False
16.instrument air sources shall produce air at not less than a gage pressure of
______ - Correct Answer: 200 psi
17.the use of adapters or conversion fittings to adapt one gas specific fitting to
another shall be allowed for testing & verification only. - Correct
Answer: false
18.which of the following systems shall not be permitted to be located in an
outdoor enclosure - Correct Answer: instrument air sources
, 19.indoor locations for oxygen, nitrous oxide & mixtures of these gases shall
not communicate with ________ locations. - Correct Answer:
Anesthetizing
20.cylinder in use and in s........ prevented from reaching temperatures in
excess of _______ - Correct Answer: 130*F
21.Where the total volume of medical gases are greater 3000ft^3, indoor
supply locations shall be provided with what type of ventilation? -
Correct Answer: Mechanical
22.What id required downstream of each regulator or immediately
downstream of the isolating valves for the regulators? - Correct Answer:
pressure indicator
23.relief valves for all positive pressure supply systems shall have at least one
relief valve made of brass, bronze or ______ - Correct Answer: stainless
steel
24.central supply systems, using gas cylinders, a ______ valve is at each
connection for the cylinder lead to prevent loss of gas in the event of
damage - Correct Answer: check
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf
1. Which of the following filler metal ..... used to braze copper-to-copper joints
in medical gas/vacuum distribution piping? - Correct Answer: BCuP
series
2. 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? - Correct
Answer: shall be deburred
3. joints shall be brazed within ______ hour after the surfaces are cleaned for
brazing - Correct Answer: 1^8
4. 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? - Correct Answer: Nitrogen NF
,5. 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 _______ - Correct Answer: 10 ppm
6. 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 - Correct Answer:
false
7. A level 3 moisture indicator ........ when the relative humidity of the
compressed air exceeds ______ efficiency. - Correct Answer: 40%
8. liquids drained from a level 3 vacuum source shall be directly connected to
a sanitary drainage system. - Correct Answer: True
9. 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 ________ - Correct Answer: Emergency shutoff
valve
10.Piping for level 3 positive-pressure medical gases shall be cleaned for
oxygen service, delivered plugged or capped & shall be hard-drawn,
seamless copper ASTM - Correct Answer: B819
,11.Multiple vacuum pumps shall be permitted to be joined together to one
common exhaust provided the common exhaust is sized to ______ -
Correct Answer: minimize back pressure
12.level 1 med cal-surgical vacuum ..... shall?*.. activate which alarm when the
backup or lag pump is running? - Correct Answer: local
13.what source shall not be used to power the venturi of WAGD system? -
Correct Answer: medical air
14.the quality of instrument air shall be dry to a dew point of ______ -
Correct Answer: -40*F
15.instrument air systems shall be interconnected with medical air systems
that have two or more compressors - Correct Answer: False
16.instrument air sources shall produce air at not less than a gage pressure of
______ - Correct Answer: 200 psi
17.the use of adapters or conversion fittings to adapt one gas specific fitting to
another shall be allowed for testing & verification only. - Correct
Answer: false
18.which of the following systems shall not be permitted to be located in an
outdoor enclosure - Correct Answer: instrument air sources
, 19.indoor locations for oxygen, nitrous oxide & mixtures of these gases shall
not communicate with ________ locations. - Correct Answer:
Anesthetizing
20.cylinder in use and in s........ prevented from reaching temperatures in
excess of _______ - Correct Answer: 130*F
21.Where the total volume of medical gases are greater 3000ft^3, indoor
supply locations shall be provided with what type of ventilation? -
Correct Answer: Mechanical
22.What id required downstream of each regulator or immediately
downstream of the isolating valves for the regulators? - Correct Answer:
pressure indicator
23.relief valves for all positive pressure supply systems shall have at least one
relief valve made of brass, bronze or ______ - Correct Answer: stainless
steel
24.central supply systems, using gas cylinders, a ______ valve is at each
connection for the cylinder lead to prevent loss of gas in the event of
damage - Correct Answer: check
