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kondaur [170]
4 years ago
10

Two technicians are discussing retrofitting CFC-12 systems to HFC-134a standards. Technician A says that the process doesn't tak

e long but that mineral oil must be added before the retrofit is complete. Technician B says that 50 ounces of CFC-12 should be replaced with 50 ounces of HFC-134a. Who is correct?
Advanced Placement (AP)
1 answer:
mezya [45]4 years ago
5 0

Answer:

tech b

Explanation:

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