Author Question: Why is it advantageous to maintain a positive pressure in a building? A) To reduce drafts B) To ... (Read 82 times)

Evvie72 · **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.