Long-term welding of toxic materials requires an approved ...

[Tirant22]

Long-term welding of toxic materials requires an approved full-face, supplied-air respirator with the
  breathing air supplied from _____.
 
  a. outside the work area
  b. a compressed oxygen tank
  c. inside the curtained work area
  d. the welding shop duct system

Question 2

Which of the following is a true statement?
 
  a. Use a whipping motion with E7018 electrodes only.
  b. Maintain a short arc when running low-hydrogen electrodes.
  c. When welding vertically, set the amperage at the highest point of its range.
  d. Electrodes are best kept in bundles laying on a table within easy reach.

[kingfahad97]

Answer to Question 1

a

Answer to Question 2

b

[Tirant22]

Thank you!

[kingfahad97]

Always glad to help...