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CEM practice questions - frequently asked questions

Plain answers about how CEM 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 CEM exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The CEM exam spans 14 domains: Energy and Sustainability Policies, Codes and Standards; Energy Rates, Tariffs and Supply Options; Energy Audits and Instrumentation; Energy Accounting and Economics; Electrical Power Systems and Motors; Lighting Systems; HVAC Systems and Building Envelope; Building Automation, Controls and Artificial Intelligence Systems; Energy Storage Systems; Boiler and Steam Systems; Distributed Generation & Renewable Energy Systems; Industrial Systems; Operations, Maintenance and Commissioning; Energy Savings Performance Contracting and Measurement & Verification. Every practice question on this site is tagged to one of these domains.

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