A Multiple Evacuation Means That ____

question 8

Multiple Choice

A multiple evacuation means that ____.

• A) you connect three vacuum pumps simultaneously to a refrigeration system and pull a vacuum
• B) you pull a vacuum on three different systems at the same time
• C) you pull a vacuum on a refrigeration system more than once, allowing refrigerant or nitrogen into the system between each procedure
• D) there must be more than one system operating before a vacuum can be pulled

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