Leaks in refrigeration systems other than air conditioning systems, commercial refrigeration systems, or industrial process cooling systems must be repaired if they have an annual leak rate of:

A) 25% of the charge per year. B) 15% of the charge per year.
C) 10% of the charge per year. D) 35% of the charge per year.


B

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What PPE is required for brazing?

What will be an ideal response?

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Besides distributing the refrigerant evenly, a refrigerant distributor also:

A) Creates a pressure drop across the distributor. B) Agitates the refrigerant to flash off as much as possible. C) Filters the refrigerant. D) Lubricates the system by infusing small quantities of refrigerant oil.

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