NCCCO Study Guide 2026

OSHA 1926.1417 and ASME B30.5 require that the rated capacity charts (load charts) and operator's manual for the specific crane be kept in the cab and be legible. These are the operator's primary reference during every lift.

Internal core failure often manifests as a measurable reduction in rope diameter and changes in rope flexibility — the rope may become either stiffer (wire rope core collapse) or softer/wavy (fiber core failure).

All-terrain cranes can travel on public highways under their own power at highway speeds and also operate on rough job sites, whereas rough terrain cranes cannot travel on public roads at speed and require transport by trailer.

Lattice boom chords carry compressive loads. When overloaded, these slender members can buckle — a sudden, catastrophic failure that collapses the boom structure.

Operators must refuse unsafe lifts regardless of pressure. The refusal should be documented, and the situation reported through the company's safety chain of command. OSHA protects operators from retaliation.

To guarantee safe lifting, operators must accurately determine the load's actual weight and compare it against the crane's specific capacity for the current boom length and radius, as detailed in the load chart. Relying on estimates or past experiences is unsafe and can lead to overloading. This meticulous cross-referencing ensures the lift remains within the crane's engineered safety parameters.