HVAC/R Evacuation Quiz

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Test your evacuation knowledge with this short quiz written by Jim Bermann

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5 comments

  1. dave johnson says:

    keep them coming

  2. Scott Puckett says:

    Missed 1, guess I’m still only a monkey with a wrench

  3. Zach Simpson says:

    I’m getting a “no answer to verification question” dialog box when submitting the answers

  4. Joe Reinhard says:

    Great vacuum quiz! Really good summary of important concepts. While I missed 3, I understand and agree why I did on 2 of them, but do not understand the following question. Why is “Register No Vacuum” wrong and “Register Vacuum” correct? I’ve used Fieldpiece and Supco and, when slight refrigerant pressure is applied to break vacumm, the vac gauge display of the system micron level is lost and shows Atmospheric. Thanks.
    1. Exposing a typical vacuum gauge to refrigerant vapor will make the gauge?
    Fail
    Creep Up
    Register No Vacuum (my answer)
    Register Vacuum (quiz correct answer)
    Into a Paperweight

    1. Daniel says:

      I run my vacuum to 150-200 microns if it fluctuates up and down during pull down moisture it it didn’t drop below 300 leaks then you have your trapped refrigerant in oil time

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