Test: MID-TERM: Chapter 40 - Storage
and Delivery of Medical Gases Exam
Questions with correct Answers
2026/2027 A+ Graded 100% Verified
Which of the following are considered therapeutic gases?
1. Oxygen (O2)
2. O2-NO mixture
3. O2-He mixture
4. N2O
a. 1 and 2 only
b. 2 and 4 only
c. 3 and 4 only
d. 1, 2, and 3 only - ANS -D
What is the fire-risk classification of both N and CO2?
a. Flammable
b. Supports combustion
c. Inflammable
d. Nonflammable - ANS -D
Which of the following medical gases support combustion?
1. O2
2. N2O
3. Compressed air
4. CO2
a. 1 and 4 only
b. 2 and 3 only
c. 1, 2, and 3 only
d. 1, 3, and 4 only - ANS -C
Which of the following statements regarding O2 are true?
1. It is only slightly soluble in water.
2. It is odorless and transparent.
3. It is flammable.
4. It is heavier than air.
a. 1 and 3 only
b. 1, 2, and 4 only
, c. 3 and 4 only
d. 1, 2, 3 only - ANS -B
What factors affect the combustion-supporting properties of O2?
1. Concentration
2. Partial pressure
3. Humidity
a. 1 only
b. 2 only
c. 1 and 2 only
d. 1, 2, and 3 - ANS -C
By what means is O2 for medical use in a hospital most commonly produced?
a. Chemical decomposition
b. Electrolysis
c. Fractional distillation
d. Physical separation - ANS -C
What is the most common and least expensive method for commercial production of O2?
a. Electrolysis of water
b. Fractional distillation of air
c. Physical separation by molecular sieves
d. Chemical decomposition of sodium chlorate - ANS -B
What is the U.S. Food and Drug Administration (FDA) purity standard for O2?
a. 21%
b. 90%
c. 95%
d. 99% - ANS -D
Which of the following methods of producing O2 is commonly used in the home care
setting?
a. Chemical decomposition
b. Electrolysis
c. Fractional distillation
d. Physical separation - ANS -D
Components of a large medical air compressor include which of the following?
1. Drying system
2. Diaphragm or turbine
3. Reservoir tank
4. Pressure-reducing valve
a. 2 and 3 only
b. 2 and 4 only
and Delivery of Medical Gases Exam
Questions with correct Answers
2026/2027 A+ Graded 100% Verified
Which of the following are considered therapeutic gases?
1. Oxygen (O2)
2. O2-NO mixture
3. O2-He mixture
4. N2O
a. 1 and 2 only
b. 2 and 4 only
c. 3 and 4 only
d. 1, 2, and 3 only - ANS -D
What is the fire-risk classification of both N and CO2?
a. Flammable
b. Supports combustion
c. Inflammable
d. Nonflammable - ANS -D
Which of the following medical gases support combustion?
1. O2
2. N2O
3. Compressed air
4. CO2
a. 1 and 4 only
b. 2 and 3 only
c. 1, 2, and 3 only
d. 1, 3, and 4 only - ANS -C
Which of the following statements regarding O2 are true?
1. It is only slightly soluble in water.
2. It is odorless and transparent.
3. It is flammable.
4. It is heavier than air.
a. 1 and 3 only
b. 1, 2, and 4 only
, c. 3 and 4 only
d. 1, 2, 3 only - ANS -B
What factors affect the combustion-supporting properties of O2?
1. Concentration
2. Partial pressure
3. Humidity
a. 1 only
b. 2 only
c. 1 and 2 only
d. 1, 2, and 3 - ANS -C
By what means is O2 for medical use in a hospital most commonly produced?
a. Chemical decomposition
b. Electrolysis
c. Fractional distillation
d. Physical separation - ANS -C
What is the most common and least expensive method for commercial production of O2?
a. Electrolysis of water
b. Fractional distillation of air
c. Physical separation by molecular sieves
d. Chemical decomposition of sodium chlorate - ANS -B
What is the U.S. Food and Drug Administration (FDA) purity standard for O2?
a. 21%
b. 90%
c. 95%
d. 99% - ANS -D
Which of the following methods of producing O2 is commonly used in the home care
setting?
a. Chemical decomposition
b. Electrolysis
c. Fractional distillation
d. Physical separation - ANS -D
Components of a large medical air compressor include which of the following?
1. Drying system
2. Diaphragm or turbine
3. Reservoir tank
4. Pressure-reducing valve
a. 2 and 3 only
b. 2 and 4 only
