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    Exam 65: Heating and Air-Conditioning System Service
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    Which Reading Represents the Lowest Vacuum Reading
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Which Reading Represents the Lowest Vacuum Reading

Question 22

Question 22

Multiple Choice

Which reading represents the lowest vacuum reading?


A) 28 in. Hg
B) 27 in. Hg
C) 29 in. Hg
D) 500 microns

Correct Answer:

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