What is the purpose of the zinc rod used in steel boilers? A) ...

[jeatrice]

What is the purpose of the zinc rod used in steel boilers?
 
  A) It prevents corrosion by reacting with corrosive elements before they attack the boiler.
  B) It acts as a flame safety device.
  C) It cycles the burner by sensing the water temperature.
  D) It acts as an electrical ground for safety purposes.

Question 2

After leaving the unit, condensate drain lines should be run:
 
  A) With a maximum rise of 1/8 inch per foot.
  B) With a minimum fall of at least 1/8 inch per foot.
  C) To the nearest plumbing waste vent.
  D) Level for a neat appearance.

[nital]

Answer to Question 1

A

Answer to Question 2

B

[jeatrice]

Thanks for the timely response, appreciate it

[sarah_brady415]

Great answer, keep it coming