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Author Question: The normal oxygen and carbon dioxide percentages in the flue gas of a properly operating gas furnace ... (Read 16 times)

Sportsfan2111

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on: Jul 24, 2018
The normal oxygen and carbon dioxide percentages in the flue gas of a properly operating gas furnace are approximately:
 
  A) 7.5 percent. B) 12 percent. C) 21 percent. D) 10 percent.

Question 2

Typically, on mini-split systems the line set going to the outdoor unit carries ________ pressure, ________ temperature saturated liquid and vapor mix. The line going back to the outdoor unit carries ________ pressure superheated vapor.
 
  A) low, high, high B) low, low, low C) high, high, low D) low, high, low


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jliusyl

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

A

Answer to Question 2

B


Sportsfan2111

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Reply 2 on: Jul 24, 2018
Gracias!

xiazhe

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Reply 3 on: Yesterday
Wow, this really help

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