Loader Operator Certification Exam Prep · Question
When backfilling a trench around a newly installed PVC sewer pipe, what is the primary consideration to prevent damage to the pipe?
To prevent damage to a newly installed pipe, especially PVC, it is crucial to use granular bedding material that won't cause point loads and to compact the back
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Question: When backfilling a trench around a newly installed PVC sewer pipe, what is the primary consideration to prevent damage to the pipe?
Answer options: ✅ Using granular bedding material and compacting in lifts, avoiding direct impact from large rocks.
- Dumping large cohesive clumps of soil directly onto the pipe to provide immediate support.
- Operating the loader bucket parallel to the pipe during backfill placement.
- Compacting the backfill primarily from one side of the trench to create a stable foundation.
Correct answer: Using granular bedding material and compacting in lifts, avoiding direct impact from large rocks.
Explanation: To prevent damage to a newly installed pipe, especially PVC, it is crucial to use granular bedding material that won't cause point loads and to compact the backfill in lifts to ensure uniform support, avoiding direct impact from large objects. Dumping large clumps or compacting from one side could create uneven stresses or damage the pipe.
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