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HS&E PLUM practice question: Hot work, fire and solder fume (6 of 6)

E. Specialist: Plumbing (JIB) A free question from our original HS&E PLUM practice exam. Try it, then open the answer to see why each option is right or wrong.

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A plumber is soldering in a small room using a rosin-based flux.

What in the fume can cause serious health problems?

Choose one answer.

  1. A. Dust from the floor
  2. B. Paint and dust burnt off the walls and joists nearby
  3. C. Rosin in the flux
  4. D. Steam from the wet pipe
Show the answer and explanation

Answer: C

  • A. Wrong: Wrong. HSE points to the rosin in the flux.
  • B. Wrong: Wrong. HSE points to the rosin in the flux.
  • C. Right: Right. HSE says serious health problems can come from rosin (also called colophony) in solder fluxes.
  • D. Wrong: Wrong. HSE points to the rosin in the flux.

Explanation

Rosin (colophony) in solder flux fume can cause serious health problems. Control the fume, for example with extraction.

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