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Author Question: When changing a low-voltage transformer, the service technician should: A) Use a replacement ... (Read 139 times)

panfilo

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When changing a low-voltage transformer, the service technician should:
 
  A) Use a replacement transformer with a higher VA rating to make it last longer.
  B) Check all low-voltage controls for shorts and grounds.
  C) Use a replacement transformer with a higher-voltage primary winding to make it last longer.
  D) Temporarily short across the secondary side of the transformer to test its output.

Question 2

What kind of expansion tank must be installed above the highest terminal unit?
 
  A) Diaphragm type B) Closed type
  C) Pressure-relief type D) Open type



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abro1885

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Answer to Question 1

B

Answer to Question 2

D




panfilo

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Reply 2 on: Jul 24, 2018
Excellent


okolip

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Reply 3 on: Yesterday
Gracias!

 

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