AL Sitework Practice Questions - Alabama Sitework Contractor Examination Exam

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When rock is too hard for conventional excavation, controlled blasting or mechanical rock breaking is used primarily to:

Remove or fragment rock so design grades and utility trenches can be achieved Increase the swell factor of topsoil only Paint the rock white for locates Avoid all safety planning

Correct Answer:

Remove or fragment rock so design grades and utility trenches can be achieved

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