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Author Question: A residential A/C system that cools in summer and heats in winter by reversing the flow of ... (Read 124 times)

mspears3

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on: Jul 24, 2018
A residential A/C system that cools in summer and heats in winter by reversing the flow of refrigerant is called a:
 
  A) PTAC system. B) Stand-alone A/C system.
  C) Window unit. D) Heat pump.

Question 2

To prevent the spread of smoke and fire, fire dampers are designed to close:
 
  A) Manually.
  B) Using the NO contacts of the fire alarm relay.
  C) Automatically.
  D) All the time except when the system is operating.


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bfulkerson77

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

D

Answer to Question 2

C


mspears3

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Reply 2 on: Jul 24, 2018
Gracias!

okolip

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Reply 3 on: Yesterday
Excellent

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