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Journeyman Plumber Exam

Safety: practice questions

Our Journeyman Plumber bank has 10 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.

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Question 1

What is the hazard of hydrogen sulfide gas in sewers?

  1. It's harmless
  2. It's toxic and can cause unconsciousness and death
  3. It improves air quality and helps break down sewage
  4. It's only a bad smell
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B. It's toxic and can cause unconsciousness and death — It deadens the sense of smell at high levels.

Question 2

What PPE should be worn when cutting cast iron pipe with a snap cutter or saw?

  1. No PPE
  2. Only gloves
  3. Only a hard hat, since the pipe is usually cut at ground level
  4. Safety glasses, gloves and hearing protection as needed
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D. Safety glasses, gloves and hearing protection as needed — Chips and noise are hazards.

Question 3

Why should eye protection be worn when using drain-cleaning chemicals?

  1. They can cause severe chemical burns
  2. Only for comfort
  3. They are harmless but have an unpleasant odour
  4. To see better
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A. They can cause severe chemical burns — Read the product label and SDS.

Question 4

What should be done before using a torch near combustible materials?

  1. Work quickly
  2. Use a heat shield, keep a fire extinguisher nearby, and check for smouldering after work
  3. Spray water on the joint first
  4. Nothing
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B. Use a heat shield, keep a fire extinguisher nearby, and check for smouldering after work — Hot work requires fire precautions.

Question 5

Why should plumbers be careful when working on old pipes in older buildings?

  1. They contain gas
  2. They are too light
  3. They may contain lead or be insulated with asbestos
  4. They are always safe, as long as the water supply has been shut off first
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C. They may contain lead or be insulated with asbestos — Follow lead-safe and asbestos procedures.

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