FDNY INDUSTRIAL REFRIGERATION
CERTIFICATION Examination Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
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1. What is the PRIMARY hazard associated with an ammonia refrigeration leak?
A. Increased oxygen levels
B. Toxic inhalation and respiratory injury
C. Cooling improvement
D. Reduced pressure
Answer: B
Rationale: Ammonia is toxic and highly irritating to the respiratory system.
2. What is the FIRST action when an ammonia leak is detected in a machinery
room?
A. Continue operation
B. Activate emergency shutdown and evacuate area
C. Increase ventilation only
D. Ignore if small leak
Answer: B
Rationale: Immediate shutdown and evacuation reduce exposure risk.
3. What is the purpose of an ammonia detection system?
,A. Improve efficiency
B. Alert personnel to hazardous gas concentration
C. Reduce cooling load
D. Increase pressure
Answer: B
Rationale: Detection systems provide early warning of leaks.
4. What PPE is required when responding to a confirmed ammonia leak?
A. No PPE
B. Full respiratory protection and chemical-resistant gear
C. Safety glasses only
D. Standard uniform
Answer: B
Rationale: Ammonia exposure requires full protective equipment.
5. What is the MAIN danger of ammonia exposure at high concentration?
A. Improved breathing
B. Severe respiratory burns and possible fatality
C. Cooling effect
D. Increased visibility
Answer: B
Rationale: High concentrations can be immediately life-threatening.
6. What is the correct response if refrigeration compressor overheats?
A. Ignore
B. Shut down system and investigate cause
C. Increase load
D. Disable alarms
, Answer: B
Rationale: Overheating indicates mechanical failure risk.
7. What is the PRIMARY function of relief valves in refrigeration systems?
A. Increase pressure
B. Prevent overpressure conditions
C. Reduce cooling
D. Control temperature only
Answer: B
Rationale: Relief valves prevent system rupture.
8. What is required when refrigerant pressure exceeds safe limits?
A. Ignore
B. Activate emergency relief and shutdown procedures
C. Increase compressor speed
D. Continue operation
Answer: B
Rationale: Overpressure conditions are dangerous.
9. What is the MAIN hazard of refrigerant oil contamination?
A. Improved lubrication
B. Reduced system efficiency and compressor damage
C. Better cooling
D. Increased pressure stability
Answer: B
Rationale: Contaminants degrade system performance.
10. What is the correct action during suspected refrigerant pipe rupture?
CERTIFICATION Examination Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the PRIMARY hazard associated with an ammonia refrigeration leak?
A. Increased oxygen levels
B. Toxic inhalation and respiratory injury
C. Cooling improvement
D. Reduced pressure
Answer: B
Rationale: Ammonia is toxic and highly irritating to the respiratory system.
2. What is the FIRST action when an ammonia leak is detected in a machinery
room?
A. Continue operation
B. Activate emergency shutdown and evacuate area
C. Increase ventilation only
D. Ignore if small leak
Answer: B
Rationale: Immediate shutdown and evacuation reduce exposure risk.
3. What is the purpose of an ammonia detection system?
,A. Improve efficiency
B. Alert personnel to hazardous gas concentration
C. Reduce cooling load
D. Increase pressure
Answer: B
Rationale: Detection systems provide early warning of leaks.
4. What PPE is required when responding to a confirmed ammonia leak?
A. No PPE
B. Full respiratory protection and chemical-resistant gear
C. Safety glasses only
D. Standard uniform
Answer: B
Rationale: Ammonia exposure requires full protective equipment.
5. What is the MAIN danger of ammonia exposure at high concentration?
A. Improved breathing
B. Severe respiratory burns and possible fatality
C. Cooling effect
D. Increased visibility
Answer: B
Rationale: High concentrations can be immediately life-threatening.
6. What is the correct response if refrigeration compressor overheats?
A. Ignore
B. Shut down system and investigate cause
C. Increase load
D. Disable alarms
, Answer: B
Rationale: Overheating indicates mechanical failure risk.
7. What is the PRIMARY function of relief valves in refrigeration systems?
A. Increase pressure
B. Prevent overpressure conditions
C. Reduce cooling
D. Control temperature only
Answer: B
Rationale: Relief valves prevent system rupture.
8. What is required when refrigerant pressure exceeds safe limits?
A. Ignore
B. Activate emergency relief and shutdown procedures
C. Increase compressor speed
D. Continue operation
Answer: B
Rationale: Overpressure conditions are dangerous.
9. What is the MAIN hazard of refrigerant oil contamination?
A. Improved lubrication
B. Reduced system efficiency and compressor damage
C. Better cooling
D. Increased pressure stability
Answer: B
Rationale: Contaminants degrade system performance.
10. What is the correct action during suspected refrigerant pipe rupture?
