Compared to electro-mechanical controls, pneumatic controls can ...

[pepyto]

Compared to electro-mechanical controls, pneumatic controls can more easily:
 
  A) Provide proportional or modulating control. B) Control small appliances.
  C) Control residential air-conditioning systems. D) On-off control.

Question 2

The power wire for an electric furnace should be:
 
  A) No larger than 10 AWG in order to avoid voltage drop.
  B) 12 AWG in most cases.
  C) Sized to handle the minimum circuit ampacity on the data plate.
  D) The same wire gauge as the internal wiring in the furnace.

[izzat]

Answer to Question 1

A

Answer to Question 2

C

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