What is the definition of 'Gross Capacity' as listed in a crane's load chart?

The maximum weight the crane can lift, including the weight of the load and all deductions (hook block, rigging, etc.)

The maximum load minus the weight of the rigging

What is 'Net Capacity'?

The chart capacity minus all deductions

The maximum weight of the crane components

The weight of the load plus the rigging

The chart capacity plus all deductions

Practice Test · 510 questions available

Crane / NCCCO Practice Test

Pick how many questions, answer at your own pace, and get instant explanations. Use your practice score to choose Core or Specialty topics to review.

How to use this for your CCO exams

You will sit two separate papers: a 95-question, 90-minute Core exam, and a separate 28-question, 60-minute exam for each mobile-crane specialty you certify on. Test mode currently mixes broad crane topics so you can find areas to review, but its questions are not yet classified item by item against either official paper. Use the published blueprints below to orient that supplemental practice.

Core blueprint

Siteabout 22%
Operationsabout 28%
Technical Knowledgeabout 23%
Load Chartsabout 27%

Specialty blueprint

Siteabout 23%
Operationsabout 23%
Technical Knowledgeabout 19%
Manufacturers' Load Chartsabout 35%

Certification also includes a hands-on practical exam covering hands-on inspection, hoisting, booming, swinging, hand signals, and combined operations with and without a load. Use qualified hands-on practice for that part; digital questions cannot reproduce crane controls or the physical test course.

Two things worth knowing. Practice here is mixed rather than split into the two official papers, so treat it as topic drilling and not a timed dress rehearsal. And CCO scores criterion-referenced without publishing a percentage cut score — so no practice percentage, ours or anyone else's, can tell you that you have passed.

CCO Mobile Crane Operator Candidate Handbook(reviewed 2026-09-12)

📋 Not sure where to start? Follow the Crane / NCCCO study plan →

Source-gated · 5 questions

Core orientation

Work five independently reviewed OSHA-based questions across all four Core domains. This is a short orientation, not a full CCO simulation or pass prediction.

Which paper are you preparing for?

Current Core blueprint

95 questions · 90 minutes · no calculator

Siteabout 22%
Operationsabout 28%
Technical Knowledgeabout 23%
Load Chartsabout 27%

Digital questions do not replace qualified hands-on practice, crane controls, or the physical course.

CCO Mobile Crane Operator Candidate Handbook (reviewed 2026-09-12)

Mixed supplemental practice

Questions are not yet classified item by item against an official paper. They remain available for broad topic review.

How many questions?

Target: Review missed Core and Specialty topics; mixed practice does not predict a CCO result.