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Missouri HVAC Practice 11

Practice 11 for HVAC Exam learners in Missouri: 25 questions, explained answers, and a review routine.

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Question 1

1

R-22 is classified under which refrigerant family, and why is it being phased out?

Question 2

2

Which EPA 608 certification type covers technicians who service small appliances containing five pounds or less of refrigerant, such as household refrigerators and window AC units?

Question 3

3

During refrigerant recovery from a system with a hermetic compressor larger than 200 horsepower, what is the required vacuum level (inches of mercury) before the system is considered recovered, assuming the recovery machine was manufactured after November 15, 1993?

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