A gravity sewer run cannot maintain required slope because of a utility conflict. What should happen?
Correct Answer
C) Stop and obtain design/utility direction before changing invert or alignment.
Gravity utilities depend on slope; conflicts require design resolution.
Why This Is the Correct Answer
Gravity utilities depend on slope; conflicts require design resolution.
Why the Other Options Are Wrong
Option A: Apply flatten the pipe without approval to the pipe grade conflict condition
Choice A (Flatten the pipe without approval.) is rejected because it tries to bypass the Pipe grade conflict checkpoint.
Option B: The site crew should hide the conflict in backfill
In site construction, Hide the conflict in backfill. is the wrong selection for Pipe grade conflict: it leaves the work at an informal or incomplete stage, while Pipe grade conflict requires Stop and obtain design/utility direction before changing invert or alignment.
Option D: The site crew should use silt fence as pipe support
Choice D gives Use silt fence as pipe support. Its specific error: the option shifts to a different trade task; the tested Pipe grade conflict function or field correction is Stop and obtain design/utility direction before changing invert or alignment.
Memory Technique
Picture a field note on the jobsite; pipe grade conflict is solved by the action that leads to Stop and obtain design/utility direction before changing invert or alignment.
Reference Hint
Open Pipe and Excavation Contracting, 2011; use by topic index - gravity drainage slope / pipe fall to confirm that Gravity utilities depend on slope; conflicts require design resolution.
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