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memoloka memoloka
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6 years ago
Three phase transformers are available in:
 
  A) Alpha and Wye configurations. B) Delta and Omega configurations.
  C) Delta and Wye configurations. D) Alpha and Omega configurations.

 Q. 2

Why is back-seating a manual service valve when installing a gauge manifold necessary?
 
  A) So that no gauge ports are opened B) So that there is no pressure on the gauge port
  C) So that coolant is not lost D) So that the middle leg is opened

 Q. 3

One-pipe, gravity-return steam systems do not use _____.
 
  a. air vents
  b. traps
  c. heat exchangers
  d. radiators
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CrippyleafCrippyleaf
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6 years ago
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memoloka Author
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#2
6 years ago
Great answers, all of them were right
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