Massachusetts Plumbers Journeyman Practice Exam

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the Massachusetts Plumbers Journeyman Exam. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Ensure your success!

Start Multiple Choice Practice Test
Start Flash Cards

Practice this question and more.

When compacting and backfilling around a pipe in a piping trench installation, how far should the backfill material be over the crown of the pipe?

  1. Three inches

  2. Four inches

  3. Six inches

  4. Eight inches

The correct answer is: Six inches

The correct choice is six inches. When compacting and backfilling around a pipe, it is essential to ensure that the backfill material extends at least six inches above the crown of the pipe. This practice helps to provide adequate support and protection for the pipe, reducing the risk of damage from soil settling or other external pressures. Having this minimum amount of backfill ensures that the pipe is securely encased, which contributes to the overall stability and integrity of the installation. This recommendation is based on industry standards that emphasize the importance of proper installation techniques to prevent future repair needs and maintain the performance of the piping system.

More Questions Like This