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

When setting up a digger derrick on a side slope, the manufacturer normally requires that the unit be:

Tilted to the downhill side to drain hydraulic fluid Operated at a fixed 5-degree side slope at all times Leveled within the manufacturer-specified tolerance, typically using outrigger length differences Operated only when the boom faces directly uphill

Correct Answer:

Leveled within the manufacturer-specified tolerance, typically using outrigger length differences

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