NCCCO Digger Derrick Practice Questions - NCCCO Digger Derrick Operator (DDO) Certification Exam

An outrigger pad sinks unevenly during setup on freshly graded fill. The correct response is to:

Continue setup because the outrigger jack will compensate Stop, retract the outrigger, and add engineered cribbing or move to firm ground Lower the boom so weight shifts to the other side Drive the truck back and forth to compact the soil

Correct Answer:

Stop, retract the outrigger, and add engineered cribbing or move to firm ground

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