Test 1-2 Medical Gas Systems Exam Questions with correct Answers 2026/2027 A+ Graded 100% Verified

Test 1-2 Medical Gas Systems Exam
Questions with correct Answers
2026/2027 A+ Graded 100% Verified

Two ways in which gas is supplied? - ANS -1. Pipeline system (primary)

2. Cylinder (emergency or mobile)

1. What gas supply is compressed?

2. Is it liquid or gas? - ANS -1. Cylinder gas

2. Could be either
oxygen--> gas
nitrous oxide--> liquid

What do the following terms stand for?

1. Psi
2.*Psig*
3. Psia - ANS -1. Pounds per square inch

2. *Pounds per square inch gauge*

3. Pounds per square inch absolute (absolute pressure)

*Pounds per square inch gauge (psig) formula* - ANS -Difference between the measured
pressure and the surrounding atmospheric pressure

1. What are most gauges set at for Psig?

2. Psia definition: absolute pressure based on a ______ reference point

3. What are the components of Psia? - ANS -1. 0

2. 0

,3. Psig + atmospheric pressure

1. A *compressed* gas will have an absolute pressure exceeding ______ PSIa at 70
degrees fahrenheit or ______ PSIa at 130 degrees fahrenheit

2. It would also have a vapor pressure of _______ mmHg at ______ degrees farhenheit -
ANS -1. 40; 104

2. 40; 70

*What is the definition of service pressure?* - ANS -*max filling pressure of a cylinder at
70 degrees fahrenheit*

-- do not surpass service pressure when refilling

Define:

1. Non-liquefied compressed gas
2. Examples of non-liquefied compressed gas? (4) - ANS -1. *doesn't liquify at normal
temp or under pressures up to 2500 PSIG*

2.
-*Nitrogen* (not N2O)
-*Oxygen*
-Air
-Helium

(NOAH wasn't liquified in the flood) awesome

1. Liquefied compressed gas
2. *Examples of liquefied compressed gas?* (2) - ANS -1. Becomes liquid in containers at
normal temp and pressures from 25-1500 PSIG

2.
-*N2O*
-CO2

Medical gas cylinder - ANS -Tank containing a *high pressure* gas or gas mixture at a
pressure that may be in excess of 2000 PSIG

Medical gas container - ANS -*Low pressure*, vacuum insulated vessel (to help keep
cold) that contains gas or gases in liquid form; uses a lot less space
--> No high pressure

, 1. Example of a medical gas container?

2. Only type of cylinder that can go on the back of an anesthesia machine? - ANS -1.
Liquid oxygen tank

2. E-cylinder

Which regulatory agency defines purity specifications of medical gases? - ANS
-Pharmacopoeia of the United States

(USP; never realized that's what USP stood for on drug labels)

1. Which regulatory agency regulates medical gases?

2. Why is this? - ANS -1. Food & Drug Administration (FDA)

2. Medical gases are considered drugs

Which agency sets the standard and regulations for the central pipeline piping systems?
- ANS -National Fire and Protection Association

(Book: compressed gas association as well; CGA)

Which regulatory agency sets specifications of design, construction, testing, marking,
labeling, filling, qualification, storage, handling, maintenance, transportation, and overall
deposition of the gas containers and cylinders - ANS -Department of Transportation
(DOT)

Which regulatory agency ensures that each facility is meeting the DOT, FDA, and
Pharmacopoeia of the United States Standards - ensure compliance of standards - ANS
-JCAHO

(Don't set any standards themselves, just make sure you're in compliance with the
standards)

What are medical gas cylinders made of? (2) - ANS -Steel or aluminum (lighter weight)

Define

1. Valve. What is it made of? (2)

2. port