Question 156Refrigeration & AC - Assistant Engineer
70% to passWith regards to shipboard refrigeration systems, after July 1, 1992, what action became illegal?
Aworking on a refrigeration system without permission of the officer in charge Marine Inspection
Bmixing R-12 and R-22
Cintentionally venting class I or II refrigerants to the atmosphere
Dproducing a class I refrigerant
AI Explanation
The correct answer is C) intentionally venting class I or II refrigerants to the atmosphere. After July 1, 1992, it became illegal to intentionally vent class I or II refrigerants to the atmosphere under the Clean Air Act. This was done to protect the ozone layer by reducing the release of ozone-depleting substances used in refrigeration systems. The other answer choices are not correct - working on a refrigeration system requires proper training and authorization, mixing different refrigerants is generally not recommended, and producing class I refrigerants was already prohibited under the Clean Air Act.
Related Questions
Q99:When recovering the remaining R-134a refrigerant from the centrifugal chiller sh... Q203:What is the physical state and pressure condition of refrigerant as it leaves a ... Q31:All shipboard personnel responsible for the maintenance and repair of air condit... Q181:A typical shipboard domestic multi-box refrigeration system operates with one co... Q205:Technicians servicing small refrigeration appliances can employ what type of rec...
Ready to test your knowledge?
Take a Refrigeration & AC - Assistant Engineer Practice ExamOfficial Resources