The tremendous popularity of mechanical refrigeration for household use in the 1930s and 1940s stimulated the development of a new series of nonexplosive and nontoxic refrigerants known as ____ of the halogen family.
A) chlorinated hydrofluorides
B) hydrocarbons
C) PCBs
D) dioxins
Correct Answer:
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Q1: The compressor serves as a pump to
Q2: The hermetic compressor consists of a motor-compressor
Q4: The _ component of the refrigerant cycle
Q5: Under what conditions is "Branch-Circuit Selection Current"
Q6: The cooling system for the drugstore and
Q7: _ is a method of removing energy
Q8: _ compressors are usually used in large
Q9: Where was the initial demand for hermetic
Q10: NEC 110.9 states that equipment
Q11: The ampere rating of the disconnecting means
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