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Journeyman Plumber Exam

Massachusetts: water heaters: practice questions

Our Journeyman Plumber bank has 5 questions on this topic. Here are 3 of them with answers; the full mock exam draws from every topic, like the real one.

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Question 1 · Massachusetts

Under c. 142, §19, how close to the top of a vertical hot water tank must a temperature relief valve tapping be?

  1. Within 6 inches
  2. Within 12 inches
  3. Within 18 inches
  4. Within 24 inches
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B. Within 12 inches — c. 142 §19B; within 6 inches for a horizontal tank.

Question 2 · Massachusetts

What stamped test pressure must a Massachusetts hot water tank have if water is stored at more than 15 psi?

  1. At least 100 psi
  2. At least 150 psi
  3. At least 200 psi
  4. At least 300 psi
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C. At least 200 psi — c. 142 §18D.

Question 3 · Massachusetts

Where may a temperature relief valve discharge pipe end under c. 142, §19?

  1. At an open fixture or within 12 in. of the basement floor
  2. Into the building sewer directly
  3. At any point above the tank
  4. Outside the building, at least 6 feet above grade and away from windows
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A. At an open fixture or within 12 in. of the basement floor — c. 142 §19B; non-ferrous pipe, at least 3/8 in. inside diameter, no shut-off.

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