When must a two-pipe oil delivery system be used? A) When ...

[bobypop]

When must a two-pipe oil delivery system be used?
 
  A) When using a high firing rate burner
  B) Only when the oil burner is a dual firing rate burner
  C) When the burner is above the tank and must lift the oil
  D) When the burner is at or below the level of the oil tank

Question 2

What allows for adjustment in the tertiary opening to enable fine-tuning of the burner?
 
  A) nozzle B) flame stabilizer
  C) variable burner head D) spray angle

[amanda_14]

Answer to Question 1

C

Answer to Question 2

C

[bobypop]

Excellent

[nguyenhoanhat]

Thanks for the timely response, appreciate it