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Author Question: Why is it advantageous to maintain a positive pressure in a building? A) To reduce drafts B) To ... (Read 72 times)

Evvie72

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on: Jul 24, 2018
Why is it advantageous to maintain a positive pressure in a building?
 
  A) To reduce drafts B) To reduce exfiltration
  C) To minimize system ventilation heat load D) To simplify system fan and duct design

Question 2

The rotation of an ECM motor is determined by:
 
  A) The internal motor wiring. B) The polarity of the power into the motor.
  C) The module program. D) The polarity of the start winding.


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nhea

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

A

Answer to Question 2

C


Evvie72

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Reply 2 on: Jul 24, 2018
Gracias!

cdmart10

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Reply 3 on: Yesterday
Excellent

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