NCCCO Digger Derrick study plan

Define every major digger derrick component and its function: boom, digger motor, auger, pole guide, winch, outriggers, turntable, and controls

Read a manufacturer-style capacity chart and state the capacity for at least five boom-length and radius combinations

Explain how radius is measured and how it differs from boom length and boom angle

Convert between working radius, boom angle, and load moment for three sample configurations

List the factors that reduce chart capacity: outrigger configuration, boom deflection, and load-line reeving

Describe how the load moment indicator or rated capacity limiter warns and limits operation, and state the operator response to each warning stage

Identify the four outrigger deployment checks: full extension, pad contact, level machine, and firm footing

Evaluate three soil and site scenarios and decide where cribbing or matting is required

Explain the stability difference between outrigger and on-rubber operation and when each is permitted

Calculate the effect of a swinging load on stability using radius and load weight

Sequence a complete pole-setting operation from pre-lift planning through final release of the pole

Determine the required boom and radius for a given pole weight and set point without exceeding chart capacity

Explain how to control pole rotation and sway using tag lines and the pole guide

Identify the hazards of side loading the boom and the conditions that create it during pole handling

Describe the steps for setting a pole in an energized or congested right-of-way

Describe auger selection factors including diameter, flighting type, and soil conditions

Explain the correct sequence for positioning, starting, and withdrawing an auger

Identify the causes of auger kickback and the controls that prevent it

State the procedure for handling a stuck auger without side loading the boom

Explain how spoil placement and hole integrity affect stability of the machine and the pole

Perform a documented pre-shift walkaround inspection covering structural, hydraulic, electrical, and safety-device items

Distinguish between operator-level checks and items requiring a qualified mechanic

Interpret fluid levels, hose condition, and wear indicators against rejection criteria

Explain the purpose and test method for the load moment system, outrigger interlocks, and boom holding devices

Describe the daily and periodic maintenance items that affect lifting capacity and safe operation

State the minimum approach distance concept and explain why distances vary with voltage and why the operator must confirm the utility's requirements

Identify the three primary electrical hazards: direct contact, arcing, and step or touch potential

Describe how an insulated or non-conductive boom affects hazard exposure and what it does not protect against

Explain grounding, equipotential matting, and bonding practices used in utility work

Outline emergency response for an electrical contact incident involving the machine

Demonstrate the standard hand signals for boom raise, lower, extend, retract, swing, and stop

Explain who is authorized to give signals and how to handle conflicting or unclear signals

Describe the signalperson and spotter duties during digging, pole handling, and blind lifts

Integrate communication into a multi-person operation with a utility crew and a flagger

Resolve a simulated communication failure scenario using the stop-and-verify rule

Re-take a full-length practice exam across all eight domains and record the score by domain

Re-work every missed item to identify whether the error was knowledge, chart reading, or misread question

Recite the ten highest-risk operator errors and the control that prevents each

Review chart-reading and stability calculations under time pressure

Build a final pre-test checklist for the day before and the day of the exam