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Author Question: The most common HCFC refrigerant is which of the following? A) R-124 B) R-23 C) R-22 D) ... (Read 54 times)

piesebel

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on: Jul 24, 2018
The most common HCFC refrigerant is which of the following?
 
  A) R-124 B) R-23 C) R-22 D) R-142

Question 2

What material is used for air-conditioning drain lines?
 
  A) PVC B) Galvanized iron pipe
  C) CPVC D) Copper


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EAN94

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Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

A


piesebel

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Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

AmberC1996

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Reply 3 on: Yesterday
Excellent

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