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Author Question: Air cleaners that use high voltage DC current to ionize particles in the air and attract them to ... (Read 41 times)

rosent76

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  • Posts: 516
on: Jul 26, 2018
Air cleaners that use high voltage DC current to ionize particles in the air and attract them to oppositely charged plates are a type of
 
  A) Electro-mechanical particle arrested B) electrostatic air cleaner
  C) electronic air cleaner D) Ultraviolet air sterilizer

Question 2

As a rule of thumb, _____ screws are required per 1,000 square feet of wallboard to install single-layer
  drywall on 16 OC studs.
 
  a. 800
  b. 1,000
  c. 1,200
  d. 1,500


cloudre37

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  • Posts: 332
Reply #1 on: Jul 26, 2018
Answer to Question 1

C

Answer to Question 2

b


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