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Author Question: What is the common operating voltage range on the cells of electronic air cleaners? A) 6,000 to ... (Read 68 times)

tth

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on: Jul 24, 2018
What is the common operating voltage range on the cells of electronic air cleaners?
 
  A) 6,000 to 10,000 volts DC B) 120 to 240 volts AC
  C) 25,000 to 50,000 volts DC D) 480 to 600 volts DC

Question 2

What is the last step in the operational sequence of the typical oil-fired furnace?
 
  A) The flame shuts down. B) The indoor blower turns off.
  C) The heat exchanger cools. D) The fan switch contacts open.


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bigsis44

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

A

Answer to Question 2

B


tth

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Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

mammy1697

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Reply 3 on: Yesterday
Excellent

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