Safety & Personal Protective Equipment Flashcards

Which ANSI standard governs the minimum requirements for eye and face protection in welding operations?

Answer: ANSI Z87.1

ANSI Z87.1 sets the performance criteria and testing requirements for occupational eye and face protection devices.

When welding in a confined space, what is the minimum oxygen concentration level required for safe breathing air?

Answer: 19.5%

OSHA requires a minimum of 19.5% oxygen in confined spaces; below this level the atmosphere is considered oxygen-deficient.

A welder notices arc flash burns on their forearms despite wearing a welding jacket. What is the most likely cause?

Answer: The sleeves were rolled up during welding

Rolling up sleeves exposes skin to UV radiation and spatter, defeating the purpose of the FR protective jacket.

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

Answer: Supplied-air respirator or PAPR with metal fume filter

Galvanized coatings release zinc oxide fumes that can cause metal fume fever; a supplied-air or PAPR system with appropriate filters provides necessary protection.

What does the designation 'FR' on welding clothing indicate?

Answer: Flame resistant

FR stands for Flame Resistant, meaning the fabric self-extinguishes and does not continue to burn after the ignition source is removed.

How far should flammable materials be kept from an active welding area as a general safety rule?

Answer: 35 feet (10.7 m)

AWS and OSHA guidelines recommend keeping flammable and combustible materials at least 35 feet from welding operations or using fire-resistant shields.

Which hazard is uniquely associated with electric arc welding but NOT with oxyfuel welding?

Answer: Electric shock

Electric shock is a hazard specific to arc welding processes since oxyfuel welding uses no electrical current.