Massachusetts Plumbers Journeyman Practice Exam

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Where should water pressure absorbers be placed for easy maintenance or replacement?

  1. At the junction of hot and cold water pipes

  2. Inside the walls

  3. Behind the fixtures

  4. As close as possible to the quick acting valves

The correct answer is: As close as possible to the quick acting valves

Water pressure absorbers are devices used to minimize the shock and noise caused by water hammer, which is a result of sudden changes in water flow. Placing the water pressure absorbers as close as possible to the quick-acting valves is essential because this allows them to effectively absorb the pressure fluctuations caused by the valves opening and closing quickly. Placing the absorbers in other locations, such as at the junction of hot and cold water pipes, inside the walls, or behind the fixtures, would not be as effective in mitigating water hammer and may make maintenance or replacement more difficult.

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