Trade certification · Cranes
Mobile Crane Operator — Core Knowledge
The written knowledge behind crane operator certification: load charts, setup, signals, power lines and safe operation.
Questions last checked against the official sources on October 6, 2026.
The real exam at a glance
- Certification
- Written core + specialty + practical
- Required by
- OSHA 1926 Subpart CC
- Key skill
- Reading load charts
- Tip
- Practise load-chart calculations
What you'll practise
Try a question
What is a 'qualified person' under OSHA?
- The newest worker
- Someone with a recognised degree, certificate or extensive knowledge and experience to solve problems in the subject
- Any employee
- A visitor
Show the answer
B. Someone with a recognised degree, certificate or extensive knowledge and experience to solve problems in the subject — Annual crane inspections need a qualified person.
Sample questions by topic (in English)
- Power lines
- Operations
- Signals
- Inspections
- Wire rope
- Load charts
- Site and setup
- Personnel hoisting
- Load calculations
- Scenarios
- Crane types and components
- Certification and responsibilities
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Questions about the Crane Operator
Is this the official Crane Operator?
No. Semplr is independent and not affiliated with the exam body. We write every question ourselves, in the official format and at the official level.
What is the real Crane Operator like?
Certification: Written core + specialty + practical. Required by: OSHA 1926 Subpart CC. Key skill: Reading load charts. Tip: Practise load-chart calculations.
How is my practice marked?
Instantly. You see your score against the pass mark, and an explanation for every question — including the ones you got right.
Can I take it on my phone?
Yes. The whole mock exam works on a phone, and your progress is saved in your browser.
Ready for a full run?
One sitting, real timing, then your score against the pass mark.
Start the free mock exam