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Questions and Answers
What is the primary purpose of using temporary casing during the drilling process?
What is the primary purpose of using temporary casing during the drilling process?
- To prevent damage to the drilled shaft
- To provide structural support for the borehole
- To retain the sides of the borehole until the concrete is placed (correct)
- To maintain the pressure balance during concrete placement
What is the minimum load that covers used for open excavations must be capable of supporting?
What is the minimum load that covers used for open excavations must be capable of supporting?
- 100 pounds
- 250 pounds
- 150 pounds
- 200 pounds (correct)
Why is it important to clearly mark open holes on a construction site?
Why is it important to clearly mark open holes on a construction site?
- To provide a visual guide for equipment operators
- To indicate the location of the excavation
- To meet regulatory requirements for workplace safety
- To alert workers and others of the hazard (correct)
What is the purpose of adding additional concrete as the temporary casing is being removed?
What is the purpose of adding additional concrete as the temporary casing is being removed?
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What is the primary purpose of covering excavations on a construction site?
What is the primary purpose of covering excavations on a construction site?
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