B9 C6 Refrigeration Plant Safety Exam Questions & Answers (Grade A+).docx

B9 C6 Refrigeration Plant Safety Exam
Questions & Answers (Grade A+)
Ammonia is harmful
Select one:
a. Above 50 ppm
b. At 40 to 50 ppm
c. At 30 to 40 ppm
d. At 2 to 5 ppm
e. At 5 to 10 ppm -
correct answer ✅a


The hazard degree of refrigeration plant is not depending on:
Select one:
a. Toxicity
b. Leakage
c. Pressure
d. Flammability
e. Complexity -
correct answer ✅e


Refrigeration system designers consider the following rules per CSA
B52:

, B9 C6 Refrigeration Plant Safety Exam
Questions & Answers (Grade A+)
1- System pressure?
2- How much refrigerant can leak?
3- How much refrigerant is in the system?
4- How toxic is the refrigerant?
5- How flammable is the refrigerant?
6- What is the occupancy?
Select one:
a. 2, 4, 5, 6
b. 1, 4, 5, 6
c. 1, 2, 3, 4, 5, 6
d. 1, 2, 3, 4
e. 1, 3, 4 -
correct answer ✅c


Per CSA B52 the visual inspection of the refrigeration plants should
be done on the following every quarterly except:
Select one:
a. Vibration
b. Physical damage
c. Safety valves