A contractor uses timber shoring in a 9-foot deep trench. OSHA Appendix C tables indicate the uprights should be spaced at a maximum of 8 feet apart. The contractor spaces them 10 feet apart. What is the violation?
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A
No violation if the soil is Type A
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B
Failure to follow manufacturer specifications
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C
Failure to comply with tabulated data, which is a violation of 29 CFR 1926.652
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D
Acceptable if a competent person approves the spacing