Certified Welder Safety and Equipment Setup 2

Question 1

What is the minimum safe distance bystanders should maintain from arc welding operations without proper shielding?

Accepted Answer

10 feet

Answer

Bystanders should stay at least 10 feet from arc welding operations or be protected by appropriate shielding screens.

Question 2

Which type of respirator is required when welding on galvanized steel?

Accepted Answer

Air-purifying respirator with metal fume filter

Answer

Galvanized steel releases zinc oxide fumes when heated, requiring an air-purifying respirator rated for metal fumes.

Question 3

Before setting up an oxy-acetylene welding station, which valve should be opened first?

Accepted Answer

Acetylene cylinder valve

Answer

Acetylene is opened first so that when oxygen is introduced, the mixture can be properly adjusted at the torch.

Question 4

What does a green color on a compressed gas cylinder indicate in the US?

Accepted Answer

Oxygen

Answer

In the US standard color coding, green cylinders contain oxygen.

Question 5

Which OSHA standard primarily governs welding, cutting, and brazing safety in general industry?

Accepted Answer

29 CFR 1910.252

Answer

29 CFR 1910.252 covers welding, cutting, and brazing safety requirements for general industry operations.

Certified Welder Practice Test