Why might adjusting the oxygen flow during a brazing project by ...

[humphriesbr@me.com]

Why might adjusting the oxygen flow during a brazing project by standing in front of the cylinder and slowly opening the valve all the way create a hazardous situation?
 
  A) The valve should only be opened halfway.
  B) The valve should only be opened two-and-a-half turns.
  C) The valve should be opened while standing behind the cylinder.
  D) The valve should be opened quickly to relieve pressure.

Question 2

What type of thread lubricant should be used when connecting the oxygen regulator to the oxygen cylinder?
 
  A) Teflon tape
  B) Only nonflammable packing
  C) Light-weight machine oil
  D) No lubricant or sealant of any kind should be used.

[Kedrick2014]

Answer to Question 1

C

Answer to Question 2

D

[humphriesbr@me.com]

Thank you!

[Kedrick2014]

Always glad to help...