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Author Question: What is used to clean the surfaces of the heat exchanger? A) Razor blade B) Abrasive sponge C) ... (Read 211 times)

Mr3Hunna

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What is used to clean the surfaces of the heat exchanger?
 
  A) Razor blade B) Abrasive sponge C) Soft cloth D) Wire brush

Question 2

When flex duct is hung or run over long distances it must be supported every _____ft with some sort of noncrimping hanger.
 
  A) 10 B) 20 C) 15 D) 5



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lkoler

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Answer to Question 1

D

Answer to Question 2

D




Mr3Hunna

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Reply 2 on: Jul 24, 2018
:D TYSM


laurnthompson

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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