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Author Question: The air filter should be installed with the directional arrow A) facing towards the unit B) ... (Read 65 times)

plus1

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on: Jul 27, 2018
The air filter should be installed with the directional arrow
 
  A) facing towards the unit B) facing to the left of the filter access
  C) facing towards the return air duct D) facing to the right of the filter access

Question 2

Select the gasses that are safe to use for refrigeration system pressure testing.
 
  A) Oxygen B) Carbon dioxide C) Nitrogen D) Acetylene


sarah_brady415

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B, C


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