As the refractory temperature increases, the combustion ...

[haleyc112]

As the refractory temperature increases, the combustion efficiency:
 
  A) Stays the same. B) Fluctuates. C) Increases. D) Decreases.

Question 2

Where should the thermostat be mounted?
 
  A) 36 to 48 in above the floor on an inside wall B) 52 to 60 in above the floor on an inside wall
  C) 52 to 60 in above the floor on an outside wall D) 36 to 48 in above the floor on an outside wall

[Meganchabluk]

Answer to Question 1

C

Answer to Question 2

B

[haleyc112]

Gracias!

[Jsherida]

Excellent