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HS&E PFW practice question: Welding fume (1 of 5)

E. Specialist: HVACR – pipefitting and welding A free question from our original HS&E PFW practice exam. Try it, then open the answer to see why each option is right or wrong.

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A welder says mild steel fume is harmless, unlike stainless steel.

What does HSE say?

Choose one answer.

  1. A. Fume is only harmful after 30 years of welding
  2. B. All welding fume can cause lung cancer
  3. C. Only stainless steel fume is harmful
  4. D. Mild steel fume is fine as long as you can't smell or taste it
Show the answer and explanation

Answer: B

  • A. Wrong: Wrong. No level of exposure is known to be safe.
  • B. Right: Right. HSE says there is evidence that exposure to all welding fume, including mild steel welding fume, can cause lung cancer.
  • C. Wrong: Wrong. All welding fume can cause lung cancer.
  • D. Wrong: Wrong. All welding fume can cause lung cancer.

Explanation

All welding fume, including mild steel fume, can cause lung cancer, so it must always be controlled.

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