During a water test, the trench is not backfilled and is filled with water to a minimum depth of 18 inches above the pipe. What is this procedure called?

During a water test, the trench is not backfilled and is filled with water to a minimum depth of 18 inches above the pipe. What is this procedure called?

• A. Water Test (Infiltration)
• B. Procedure for Water Test
• C. Air Pressure Test
• D. Alignment Testing

Answer: (B)

The situation describes using water to pressurize the installed pipe and joints to check for leaks, with the trench left open so the water head can act on the system. Filling the trench to a minimum depth of 18 inches above the pipe provides a specific hydrostatic head to reveal leaks, and keeping the trench unbackfilled ensures this pressure is maintained during the test. When a test is described in terms of the method or steps you’re following, the label that fits best is the one that names the procedure for performing a water test. The other options don’t match: an air pressure test uses air, alignment testing isn’t about pressure testing, and a Water Test (Infiltration) describes the test’s purpose rather than the procedural label. So this is the Procedure for Water Test.

The situation describes using water to pressurize the installed pipe and joints to check for leaks, with the trench left open so the water head can act on the system. Filling the trench to a minimum depth of 18 inches above the pipe provides a specific hydrostatic head to reveal leaks, and keeping the trench unbackfilled ensures this pressure is maintained during the test. When a test is described in terms of the method or steps you’re following, the label that fits best is the one that names the procedure for performing a water test. The other options don’t match: an air pressure test uses air, alignment testing isn’t about pressure testing, and a Water Test (Infiltration) describes the test’s purpose rather than the procedural label. So this is the Procedure for Water Test.