The work plan must account for this condition: unknown utilities must be verified. Which subsurface utility method is most suitable?
Correct Answer
C) locate and pothole before excavation
locate and pothole before excavation best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why This Is the Correct Answer
locate and pothole before excavation best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why the Other Options Are Wrong
Option A: electronic utility locating
electronic utility locating puts the item in the wrong financial bucket, timing, base, or comparison for utility locating.
Option B: vacuum potholing at crossings
vacuum potholing at crossings puts the item in the wrong financial bucket, timing, base, or comparison for utility locating.
Option D: surveyed utility markout before layout
surveyed utility markout before layout puts the item in the wrong financial bucket, timing, base, or comparison for utility locating.
Memory Technique
Utility Locating ledger for Manager Checking: put controlling in the right drawer.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Sitework methods; utility locating and potholing; verify the construction method, material selection, equipment choice, or work sequence that fits the field condition.
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