Practice question
Under Cal/OSHA regulations, at what depth must an excavation or trench for installing deep traffic sign footings have cave-in protection?
- At a trench depth of 2 feet or deeper.
- At a trench depth of 3 feet or deeper.
- At a trench depth of 4 feet or deeper.
- At a trench depth of 5 feet or deeper.
Answer: D — At a trench depth of 5 feet or deeper.
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