AWS Welder Material & Equipment Handling 2

Question 1

When storing compressed gas cylinders in a shop, how must full and empty cylinders be stored?

Accepted Answer

Separately and clearly labeled

Answer

Full and empty cylinders must be stored separately and clearly labeled to prevent accidental use of a depleted cylinder or confusion during emergencies.

Question 2

Which electrode classification suffix indicates that the electrode has a low-hydrogen coating?

Accepted Answer

EXX18

Answer

The EXX18 suffix designates a low-hydrogen iron powder electrode, which requires storage in a rod oven to maintain its moisture-free coating.

Question 3

What is the primary purpose of a wire feed unit's drive roll tension in GMAW?

Accepted Answer

To ensure consistent wire feeding without slipping or birdnesting

Answer

Proper drive roll tension ensures the wire feeds smoothly and consistently without slipping or forming a bird's nest at the wire feeder.

Question 4

Which type of base metal preparation is required before welding galvanized steel?

Accepted Answer

Remove the zinc coating from the weld zone

Answer

The zinc coating must be removed from the weld zone because it produces toxic zinc oxide fumes and causes porosity in the weld.

Question 5

A welder notices the MIG gun liner is kinked. What is the correct action?

Accepted Answer

Replace the liner to restore smooth wire feeding

Answer

A kinked liner must be replaced because it disrupts consistent wire feeding and cannot be reliably straightened to original condition.

AWS Practice Test

AWS Practice Test

AWS Welder Material & Equipment Handling 2