Refrigeration & Air Conditioning Mechanic Red Seal · Question
A refrigeration system contains two pressure vessels in series, Vessel A with a design pressure of 1500 kPa and Vessel B with a design pressure of 1200 kPa. Which vessel's design pressure dictates the maximum set pressure for a single pressure relief device protecting both vessels, assuming the relief device is located to protect both?
CSA B52, Section 7.4.2.1, specifies that the set pressure of a pressure relief device shall not exceed the design pressure of the protected component or 90% of
Start free practice for Refrigeration & Air Conditioning Mechanic Red Seal
500 questions · no signup required · 40 free questions per day
Question: A refrigeration system contains two pressure vessels in series, Vessel A with a design pressure of 1500 kPa and Vessel B with a design pressure of 1200 kPa. Which vessel's design pressure dictates the maximum set pressure for a single pressure relief device protecting both vessels, assuming the relief device is located to protect both?
Answer options:
- Vessel A (1500 kPa) ✅ Vessel B (1200 kPa)
- The average of the two design pressures.
- The highest possible operating pressure.
Correct answer: Vessel B (1200 kPa)
Explanation: CSA B52, Section 7.4.2.1, specifies that the set pressure of a pressure relief device shall not exceed the design pressure of the protected component or 90% of its rated pressure. When protecting multiple components, the relief device must be set to protect the component with the lowest design pressure or weakest component in the assembly. Therefore, Vessel B's design pressure dictates the maximum set pressure.
Start free practice for Refrigeration & Air Conditioning Mechanic Red Seal
500 questions · no signup required · 40 free questions per day
More about Refrigeration & Air Conditioning Mechanic Red Seal
Related Questions
- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
- Which type of electric motor requires a capacitor for starting and running, offering higher efficiency and bet
- When evacuating a refrigeration system, what is the recommended deep vacuum level, typically measured in micro
More for Refrigeration & Air Conditioning Mechanic Red Seal candidates
FAQs
Question explanations
- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Refrigeration & Air Conditioning Mechanic Red Seal Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.