TYPE II
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | D. Traces of oil
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| show | B. Rotating shaft seal.
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| show | B. 20%
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| 4. After a leak repair of a supermarket rack using 3000lbs of R-22 and a sucessful initial verification test, when must a follow up leak verification test be conducted, | show 🗑
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| show | B. Conduct additional repairs within 30 day repair window or mothball the appliance.
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| show | C. Liquid phase
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| show | C. Liquid line
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| 8. Recovering refrigerant from a system in the vapor phase will minimize the loss of which of the following, | show 🗑
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| 9. After refrigerant liquid has been recovered from the appliance, any remaining vapor, | show 🗑
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| show | B. Cooling the recovery cylinder to lower its pressure.
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| 11. Why could a recycling or recovery machine that uses a hermetic compressor overheat when drawing deep vaccum, | show 🗑
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| 12. Your recovery/recycling machine has R-22 refrigerant in it. you now have to recover refrigerant from an R-410A unit. What must be done before recovery, | show 🗑
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| show | B. Purchases of such equipment must be reported to the EPA.
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| 14. You are changing out of the compressor of a system containing 40 pounds of R-404A. In addition isolating the compressor , which of the following procedures should you follow, | show 🗑
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| show | B. Wait for at least a few mins to see if the system pressure rises.
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| 16. Before making a major repair, technicians must evacuate an appliance or component containing more then 200 pounds of R-410A to which of the following levels, | show 🗑
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| show | C. Leaks in the appliance make recovery to the prescribed level unattainable.
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| show | A. Replacement of an evaporator coil.
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| show | C. When the appliance contains over 15 pounds of refrigerant.
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| 20. What is the state of the refrigerant leaving the receiver in a refrigeration system, | show 🗑
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| 21. Identify the best method to charge a system that has both an air-cooled condenser and evaporator with a name plate charge of 80 pounds. | show 🗑
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| 22. How would you remove moisture from refrigerant in a system. | show 🗑
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| show | D. R717
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| 24. When could a reciprocating compressor be damaged if energized, | show 🗑
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| 25. It is best practice to use dry nitrogen to break the vacuum when dehydrating by the triple evacuation method, However, | show 🗑
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Created by:
RonnyTing