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Author Question: Any exposed live parts must be guarded if they are operating at _____. a. 15V or more between ... (Read 26 times)

bio_gurl

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on: Jul 24, 2018
Any exposed live parts must be guarded if they are operating at _____.
 
  a. 15V or more between terminals
  b. 50V or more between terminals
  c. 240V or more between terminals
  d. 600V or more between terminals

Question 2

A major difference between common HVAC systems and air turnover systems is that air turnover systems
  _____.
 
  a. cannot provide cooling
  b. are direct-fired units
  c. are designed to encourage stratification
  d. often use propeller fans to circulate the air


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apple

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

b

Answer to Question 2

d


bio_gurl

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Reply 2 on: Jul 24, 2018
Wow, this really help

ttt030911

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Reply 3 on: Yesterday
:D TYSM

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