________ use DC voltage to attract dust and contaminants to an ...

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________ use DC voltage to attract dust and contaminants to an electrically charged media or plate.
 
  A) Electronic air cleaners B) HEPA filters
  C) Ultraviolet lights D) Pleated filters

Question 2

When running the primary and secondary evaporator drain lines:
 
  A) Always run the horizontal portions straight and level.
  B) Always run both drains separately.
  C) Always trap both drain lines.
  D) Always run both drains into a common drain line to avoid reverse flow from one drain to the other.

[wfdfwc23]

Answer to Question 1

A

Answer to Question 2

B

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Thanks for the timely response, appreciate it

[nguyenhoanhat]

Great answer, keep it coming