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CCO practice questions - frequently asked questions

Plain answers about how CCO Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real CCO exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The CCO exam spans 4 domains: Setup (23% of the exam); Operations (23% of the exam); Technical Knowledge (19% of the exam); Manufacturers’ Load Charts (35% of the exam). Every practice question on this site is tagged to one of these domains.

The domains are not weighted equally on the exam. By share of the marks: Manufacturers’ Load Charts 35%; Setup 23%; Operations 23%; Technical Knowledge 19%.

The CCO exam has 116 questions and is completed in 2 hours 30 minutes. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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