AL Water Projects Practice Questions - Alabama Water Projects Contractor Examination Exam

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A new water main is being laid in the same alignment as a removed 1950s cast-iron line. How does previous disturbance affect OSHA soil classification?

Previously disturbed soil cannot be classified as Type A Previously disturbed soil is automatically stable rock Previous disturbance upgrades Type C to Type A Previous disturbance has no effect on classification

Correct Answer:

Previously disturbed soil cannot be classified as Type A

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