Oscillating the torch when fusion welding cast iron is done in ...

[JGIBBSON]

Oscillating the torch when fusion welding cast iron is done in order to:
 
  A) Preheat the surface
  B) Remove gas bubbles
  C) Smooth out the surface
  D) Diffuse carbon
  E) None of the above

Question 2

The ignition operating sequence and flame safety are controlled on an oil burner by
 
  A) The combination oil valve and thermocouple B) The primary control
  C) The thermostat and limit switch D) The ignition transformer and oil burner

[parker125]

Answer to Question 1

B

Answer to Question 2

B

[JGIBBSON]

Thank you!

[parker125]

Always glad to help...