Ashrae Refrigeration Systems
Environmental Compliance Module
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
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1. Which international agreement is primarily responsible for phasing out
ozone-depleting substances in refrigeration systems?
A. Kyoto Protocol
B. Paris Agreement
C. Montreal Protocol
D. Basel Convention
Answer: C
Rationale: The Montreal Protocol targets substances that deplete the
ozone layer, including CFCs and HCFCs used in refrigeration.
,2. Which refrigerant has the highest ozone depletion potential (ODP)?
A. R-134a
B. R-410A
C. R-12
D. R-744
Answer: C
Rationale: R-12 (CFC-12) has a very high ODP and was widely phased
out due to environmental impact.
3. What does GWP measure?
A. Gas Water Pressure
B. Global Water Pollution
C. Global Warming Potential
D. Gas Work Performance
Answer: C
Rationale: GWP measures how much heat a greenhouse gas traps in
the atmosphere compared to CO₂.
4. Which refrigerant is considered a natural refrigerant?
A. R-134a
B. Ammonia (R-717)
C. R-410A
D. R-22
Answer: B
, Rationale: Ammonia occurs naturally and has zero ODP and very low
GWP.
5. What is the main environmental concern with HCFC refrigerants?
A. High flammability
B. High toxicity
C. Ozone depletion
D. Radioactivity
Answer: C
Rationale: HCFCs still contribute to ozone depletion, though less than
CFCs.
6. Which regulation restricts refrigerant emissions in the United States?
A. EPA Clean Air Act Section 608
B. OSHA 1910
C. ASHRAE 90.1
D. ISO 14000
Answer: A
Rationale: Section 608 regulates refrigerant recovery, recycling, and
venting prevention.
7. What is the main purpose of refrigerant recovery?
A. Increase pressure
B. Prevent contamination
C. Prevent atmospheric release
, D. Improve cooling speed
Answer: C
Rationale: Recovery captures refrigerant to avoid environmental
release.
8. Which refrigerant has zero ODP and very low GWP?
A. R-22
B. R-12
C. R-744 (CO₂)
D. R-123
Answer: C
Rationale: CO₂ is environmentally friendly with zero ozone impact.
9. Which refrigerant is being phased out globally due to high GWP?
A. R-410A
B. R-744
C. R-717
D. Water
Answer: A
Rationale: R-410A is an HFC with high GWP targeted for phase-down.
10. What does ASHRAE primarily focus on regarding refrigeration
systems?
A. Financial auditing
B. Environmental safety and efficiency standards
Environmental Compliance Module
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. Which international agreement is primarily responsible for phasing out
ozone-depleting substances in refrigeration systems?
A. Kyoto Protocol
B. Paris Agreement
C. Montreal Protocol
D. Basel Convention
Answer: C
Rationale: The Montreal Protocol targets substances that deplete the
ozone layer, including CFCs and HCFCs used in refrigeration.
,2. Which refrigerant has the highest ozone depletion potential (ODP)?
A. R-134a
B. R-410A
C. R-12
D. R-744
Answer: C
Rationale: R-12 (CFC-12) has a very high ODP and was widely phased
out due to environmental impact.
3. What does GWP measure?
A. Gas Water Pressure
B. Global Water Pollution
C. Global Warming Potential
D. Gas Work Performance
Answer: C
Rationale: GWP measures how much heat a greenhouse gas traps in
the atmosphere compared to CO₂.
4. Which refrigerant is considered a natural refrigerant?
A. R-134a
B. Ammonia (R-717)
C. R-410A
D. R-22
Answer: B
, Rationale: Ammonia occurs naturally and has zero ODP and very low
GWP.
5. What is the main environmental concern with HCFC refrigerants?
A. High flammability
B. High toxicity
C. Ozone depletion
D. Radioactivity
Answer: C
Rationale: HCFCs still contribute to ozone depletion, though less than
CFCs.
6. Which regulation restricts refrigerant emissions in the United States?
A. EPA Clean Air Act Section 608
B. OSHA 1910
C. ASHRAE 90.1
D. ISO 14000
Answer: A
Rationale: Section 608 regulates refrigerant recovery, recycling, and
venting prevention.
7. What is the main purpose of refrigerant recovery?
A. Increase pressure
B. Prevent contamination
C. Prevent atmospheric release
, D. Improve cooling speed
Answer: C
Rationale: Recovery captures refrigerant to avoid environmental
release.
8. Which refrigerant has zero ODP and very low GWP?
A. R-22
B. R-12
C. R-744 (CO₂)
D. R-123
Answer: C
Rationale: CO₂ is environmentally friendly with zero ozone impact.
9. Which refrigerant is being phased out globally due to high GWP?
A. R-410A
B. R-744
C. R-717
D. Water
Answer: A
Rationale: R-410A is an HFC with high GWP targeted for phase-down.
10. What does ASHRAE primarily focus on regarding refrigeration
systems?
A. Financial auditing
B. Environmental safety and efficiency standards
