A worker who is doing backfilling MUST have knowledge of what subject?

A. Soil and soil compaction methods
B. Flow in the pipeline
C. Ultrasonic inspections
D. Radiographic inspection



Answer :

Final answer:

Workers doing backfilling must understand soil science and physics concepts for effective soil compaction.


Explanation:

Soil compaction is crucial in backfilling to achieve proper engineering properties like shear strength and compressibility. Workers need knowledge of soil science principles and physics concepts such as mass, force, and pressure to ensure the compacted soil meets required standards.


Learn more about Soil Compaction here:

https://brainly.com/question/40966423