14. In general, blended refrigerants should be charged
ANS C) as a liquid.
15. Blended refrigerants leak from a system
ANS B) in uneven amounts due to different vapor pressures.
16. Which of the following gases help form the earth's protective shield?
ANS D) Stratospheric Ozone
17. In a refrigeration system, the device that changes a low pressure vapor to a high
pressure vapor is the
ANS C) compressor.
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