Trenches shall be kept ______ until the piping has been ________, _________, and ________.

Trenches shall be kept ______ until the piping has been ________, _________, and ________.

• A. Open. Inspected, tested and accepted
• B. Open. Inspected, tested and approved
• C. Inspected, tested and approved
• D. Open. Inspected, tested and approved

Answer: (D)

The trench must stay open until the piping has been inspected, tested, and approved. Keeping the trench open ensures there’s still access for the inspector and any necessary corrections before backfilling. The piping needs formal verification: first it’s checked for proper installation, then it’s tested (to prove it’s leak-free and functioning), and only after passing the test is it approved by the authority. Using “open” for the trench status plus the sequence “inspected, tested and approved” matches the standard practice and the official sign-off process. The term “accepted” is not the standard formal sign-off you’d see in these requirements, which is why the correct completion uses “approved.”

The trench must stay open until the piping has been inspected, tested, and approved. Keeping the trench open ensures there’s still access for the inspector and any necessary corrections before backfilling. The piping needs formal verification: first it’s checked for proper installation, then it’s tested (to prove it’s leak-free and functioning), and only after passing the test is it approved by the authority. Using “open” for the trench status plus the sequence “inspected, tested and approved” matches the standard practice and the official sign-off process. The term “accepted” is not the standard formal sign-off you’d see in these requirements, which is why the correct completion uses “approved.”