Safety & Personal Protective Equipment Flashcards
7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety & Personal Protective Equipment flashcards as text
A welder develops a persistent cough and shortness of breath after weeks of welding stainless steel indoors. What is the most likely cause?
Answer: Hexavalent chromium (Cr VI) fume inhalation
Stainless steel contains chromium, which oxidizes into highly toxic hexavalent chromium (Cr VI) fumes during welding, causing serious respiratory and systemic health effects.
What is the correct first aid response if a welder experiences arc eye (photokeratitis)?
Answer: Rest in a darkened area, use cool damp cloths, seek medical attention
Arc eye symptoms (pain, sensitivity, gritty sensation) typically worsen hours after exposure; resting in darkness reduces discomfort while medical evaluation determines severity.
Which class of fire extinguisher is required to address a welding-related fire involving energized electrical equipment?
Answer: Class C
Class C extinguishers use non-conductive agents (CO2, dry chemical) suitable for fires involving energized electrical equipment without risk of electrocution.
What is the purpose of the ground clamp in an arc welding circuit from a safety standpoint?
Answer: To complete the welding circuit and minimize stray current paths that cause shock
Proper grounding ensures welding current returns through the intended circuit path, reducing stray currents that could travel through a welder's body or cause fires.
Which OSHA standard primarily governs welding, cutting, and brazing safety in general industry?
Answer: 29 CFR 1910.252
29 CFR 1910.252 specifically addresses welding, cutting, and brazing requirements in general industry settings.
What does the term 'TLV-TWA' mean in the context of welding fume exposure?
Answer: Threshold limit value — time-weighted average exposure over an 8-hour workday
TLV-TWA is the concentration of an airborne substance to which nearly all workers may be repeatedly exposed over an 8-hour day without adverse effects.
When welding in an area with overhead work being performed by other trades, which additional PPE is required?
Answer: Hard hat meeting ANSI Z89.1 Type I or II
A hard hat meeting ANSI Z89.1 protects against falling objects from overhead workers while the welding helmet protects against arc hazards.